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COdocs.google/document/d/1ql5Ng3OniSfFgSDpY_4LZTPRWs9P-ygwQQLt997gkzg/editA rectangular coil (0 m x 0 m) has 200 turns and is in a uniform magneticfield of 0 T. If the orientation of the coil is varied through all possible positions,the maximum torque on the coil by magnetic forces is 0 Nm. What is ...

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CO2 https://docs.google.com/document/d/1ql5Ng3OniSfFgSDpY_4LZTPRWs9P-ygwQQLt997gkzg/edit

A rectangular coil (0.20 m x 0.80 m) has 200 turns and is in a uniform magnetic field of 0.30 T. If the orientation of the coil is varied through all possible positions, the maximum torque on the coil by magnetic forces is 0.080 Nm. What is the current in the coil? =8.3

In the figure, three very long and parallel transmission lines are parallel to the z-axis and carry currents of I1, I2, and I3. What is the magnetic force per unit length exerted by I1 on I2? -4

2.5 x 10

N/m, in the +x-direction

An electron and a proton are moving with the same velocity. In the figure, the proton is directly above the electron. Which of the following statements is true? = They exert repulsive magnetic forces on each other A 100-m-long wire carrying a current of 4.0 A will be accompanied by a magnetic field of what strength at a distance of 0.050 m from the wire? = 1.6 x 10-5 T In the figure, the current in the triangular loop is 10.0 A. If the loop is placed in a uniform magnetic field of 0.500 T in the direction 53.13o above +x, what is the magnetic force on side AC? = 2.5N +z-direction A horizontal wire of length 3.0 m carries a current of 6.0 A and is oriented so that the current direction is 50o S of W. The Earth's magnetic field is due north at this point and has a strength of 0.14 x 10-4 T. What are the magnitude and direction of the force on the wire? =  1.62* 10^-4 N TOWARDS

The rectangular loop in the figure is pivoted about the y-axis and carries a current of 10 A in the direction indicated. If the loop is in a uniform magnetic field with a magnitude 0.50 T in the +z-direction, what are the magnitude and direction of the magnetic torque on the loop at the position shown? = 0.02 N.m, -y direction. Two long parallel wires 20 cm apart carry currents of 5.0 A and 8.0 A in opposite directions. What is the magnitude of the net magnetic field midway between the wires? = 2.6*10^-5Tesla An electron and a proton are moving with the same velocity. Consider the magnetic field at point P of the same distance r midway between the charges. Which of the following statements is true? = the magnetic field due to the electron and the proton have equal magnitudes A proton moves across the Earth's equator in a northeasterly direction. At this point the Earth's magnetic field has a direction due north and is parallel to the surface. What is the direction of the force acting on the proton at this instant? = out of the Earth's surface An electron is released such that it has an initial speed of 4.0 X 105 m/s from left to right across the page. A magnetic field of 1.2 T is present at an angle of 30o to the horizontal direction (or positive x axis). What are the magnitude and direction of the magnetic force on the electron? = 3.8 into the page A copper wire of length 25 cm is in a magnetic field of 0.20 T. If it has a mass of 10 g, what is the minimum current through the wire that would cause a magnetic force equal to its weight? = 2.0A A high-voltage power line 20 m above the ground carries a current of 2 000 A. What is the magnetic field due to the current directly underneath the power line? = 2 * 10^(-5) Tesla =20uT In the figure, the quarter-circle conductor of radius R = 10 cm is carrying a current I = 10 A in a uniform magnetic field of 0.5 T. What are the magnitude and direction of the magnetic force on the conductor? = 0.7 N, 45o above the +x-axis If an electron is released at the equator and falls toward the Earth under the influence of gravity, the magnetic force on the electron will be toward the: = west

In the figure, the current in the current loop is 10.0 A. The loop is in a uniform magnetic field of 0.500 T in the +z-direction. Semicircular segments a and b have radii of 10.0 cm and 15.0 cm respectively. What is the magnitude of the net magnetic force on the whole current loop?0.75 N= none

In the figure, the current in the triangular loop is 10.0 A. If the loop is placed in a uniform magnetic field of 0.500 T in the +y-direction, what is the magnetic force on side AC? =1.5 N, in the +z-direction

4 An electron which moves with a speed of 3.0 x 10 m/s parallel to a uniform

magnetic field of 0.40 T experiences a force of what magnitude? =zero

Two long parallel wires 20 cm apart carry currents of 5.0 A and 8.0 A in the same direction. At what point between the two wires is the net magnetic field due to the two of them zero? ANS: 7.7 Two long parallel wires 20 cm apart carry currents of 5.0 A and 8.0 A in opposite directions. At what point is the net magnetic field due to the two of them zero? =33 cm from the 5-A wire CO3 https://docs.google.com/document/d/1Xz1S5BT1WZVg4kSnDhU-rl8HCKVDsE0Fi0SM7HnTUA4/ edit?fbclid=IwAR0IQli90xa3whlWzCFCR7r6leLFxHQAcXC9OrImGrcnWrFML92lo-BXQ5w If a concave mirror has a focal length of 20 cm, at which object distance will an image larger than object be formed on the screen? = 15cm An object is placed at an object distance half the magnitude of the focal length of a converging lens. Which of the following is incorrect? Consider the magnitudes only. = di = f A spotlight is placed at the bottom of a swimming pool facing upward. A circle of light of diameter 4.00 m is formed on the surface of water. What is the depth of the pool? nwater = 1.33 = 1.75 Which of the following is a principal ray for a converging lens? = A light ray parallel to the principal axis is refracted to the focus on the other side of the lens. An object is placed 10-cm from a converging lens. An image 3x the size of the object is formed on the screen. What is the focal length of the lens? = 15 If a diverging lens has a focal length of 10 cm, at which object distance will an image smaller than object be formed on a screen? = none If the object is placed in front of a convex mirror, at an object distance 3x the magnitude of the focal length, which of the following is true? Consider the magnitudes only. = the image height is 0.67 times the object height

An object is placed 20-cm from a diverging lens. An image 0.5 times the size of the object is  formed. What is the focal length of the lens? = -20 cm If a convex mirror has a focal length of 10 cm, at which object distance will an image smaller than object be formed on the screen? = 5 cm The figure shows the path of a light ray as it travels in different media. If θC is greater than θA, which of the following is true? = n1 < n2 and n1 > n3 An object is placed 30 cm from a concave mirror of focal length 15 cm. Which of the following is the description of the image formed? = real, inverted, and same size as the object An object is placed at a distance of 10.0 cm from a convex mirror of focal length 15.0 cm. Which of the following is the image formed? = In the figure a light ray travels in three different media where n1 = 1.50, n2 = 2.00, and n3 = 1.33. If θA = 30o, what is the value of θC? =

2 The figure shows the top view of a current loop of area 0.48 m carrying a current

of 10 A. The loop is in a uniform magnetic field of 0.50 T. What are the magnitude and direction of the magnetic torque on the loop in the position shown? =1.8 +y

6 A proton moving with a velocity of 2.0 x 10 m/s, eastward enters a uniform o magnetic field of 0.50 T in the direction 30 north of west. What are the magnitude

and direction of the magnetic force on the proton? =8x10^-14, upward

CO4 https://docs.google.com/document/d/1ZoAB1bcxKhQ50l0L4NHn18Xl26zKoEdoM8XQ-7kdWYE/e dit In a Young's double-slit interference apparatus, by what factor is the distance between adjacent light and dark fringes changed if the whole set up is submerged in water (n=1.33)? =0.75 Which of the following statements is correct about a single-slit diffraction pattern? = The width of the fringes varies directly as the slit-screen separation. Laser light sent through a double slit produces an interference pattern on a distant screen. If the first order bright fringe occurs at an angle of 10.0°, at what angle does the eighth order maximum occur? =no eight order An alien pilot is on board a spaceship that is moving with a velocity of 0.600c relative to the Earth. The spaceship fires a missile with a speed of 0.400 c relative to the spaceship. According to Einstein's relativity, what is the speed of the missile relative to Earth? =0.806C Sound waves of wavelength 0.500 m enter a 2.00-m wide opening on a wall. At what angle position is the intensity of sound minimum on the other side of the wall? =30 Which of the following is a non-inertial frame of reference? =none According to the special theory of relativity, if a 30-year old astronaut is sent on a space mission in a space ship that travels at 0.866c, and then returns to earth after 20 years as measured on earth, what would be his biological age upon returning? =40

= 0.035 Nm,

= Zero

= 2.5, in the +z-direction

= 3.14x10-5, in the +z-direction

=into the page

=1.5N +z

=8.0x10^-14 N,upward

=(myu not/2pi)(150(5)/3) = 5x10-4, +y, to check direction opposite direction i2 and i3 so repel, +y direction

=tama, kasi parallel, so zero

= The magnetic forces on the two charges are acting in the opposite direction

= 3.14x10-5, +z

=

The magnetic field due to the electron and the proton have equal magnitudes.

= tama

1.8 Nm +y direction

5 A proton moving with a speed of 3.0 x 10 m/s perpendicular to a uniform

magnetic field of 0.20 T will follow which of the paths described below?

A circular path of 1.6cm radius

Outside the wires, the two magnetic fields from the two currents are in opposite directions so they will tend to cancel each other and the resulting or total magnetic field will be small. =12CM

=2.0

A proton and an electron are moving with the same velocity parallel to a uniform magnetic field. Which of the following is true? =The

magnetic forces on the two charges are acting in the opposite direction.

=7.7

1.0 +y

+1.5 +z

=1.5+z

=8.0

= out of the earth surface

2.5 +x

6.7 out ofthe page

A rectangular coil (0.20 m x 0.80 m) has 200 turns and is in a uniform magnetic field of 0.30 T. If the orientation of the coil is varied through all possible positions, the maximum torque on the coil by magnetic forces is 0.080 Nm. What is the current in the coil? =8.3 mA In the figure, the current in the current loop is 10.0 A. The loop is in a uniform magnetic field of 0.500 T in the +z-direction. What is the magnetic force on the semi-circular segment b if it has a radius of 15 cm? 1.5 N, in the –y-direction

6 A proton moving with a velocity of 2.0 x 10 m/s, eastward enters a uniform o magnetic field of 0.50 T in the direction 30 north of west. What are the

magnitude and direction of the magnetic force on the proton? -14 =8.0 x 10 N, upward

Change font color ng correct answer to red na lang ty :) An object is placed 10-cm from a convex mirror. An image 0.5 times the size of the object is formed. What is the focal length of the mirror? –10 cm +10 cm

None of the choices is correct. +5 cm –5 cm An object is placed at a distance of 10.0 cm from a convex mirror of focal length 15.0 cm. Which of the following is the image formed? di = +6.00 cm and M = -0.600 di = -6.00 cm and M = +0.600 di = +30.0 cm and M = -3.00 di = -30.0 cm and M = +3.00 An object is placed 10-cm from a converging lens. An image 3x the size of the object is formed on the screen. What is the focal length of the lens? 20 cm 25 cmif a 15 cm 7.5 cm

An object is placed at a distance of 10.0 cm from a diverging lens of focal length 5.00 cm. Which of the following is the image formed? * solved

di = -3.33 cm and M = +0.333 di = 10.0 cm and M = -1.00 di = -10.0 cm and M = +1.00 di = +3.33 cm and M = -0.333

An object is placed 30 cm from a concave mirror of focal length 15 cm. Which of the following is the description of the image formed? real, inverted and enlarged virtual, erect, and same size as object real, inverted, and same size as the object virtual, inverted, and same size as object

Which of the following is a principal ray for concave mirrors? A light ray passing through the focus will be reflected parallel to the principal axis. -VITUG A light ray passing through the center of the mirror will be reflected to the focus. A light ray parallel to the principal axis will be reflected to the center.

A light ray hitting the vertex of the mirror will be reflected back along its path.

For what position of the object will a converging lens project on the screen an image larger than the object? at an object distance twice the focal length at an object distance half the focal length at an object distance greater than twice the focal length at an object distance 1.5 times the focal length -vitug pa check

An object is placed at a distance of 10.0 cm from a convex mirror of focal length 5.00 cm. Which of the following is the image formed? di = -10.0 cm and M = +1.00 di = 10.0 cm and M = -1.00 di = +3.33 cm and M = -0.333 di = -3.33 cm and M = +0.333

An object is placed at a distance of 15.0 cm from a diverging lens of focal length 30.0 cm. Which of the following is the image formed?

di = -10.0 cm and M = +0.66 di = -30.0 cm and M = +2.00 di = +10.0 cm and M = -0.667

di = +30.0 cm and M = -2.00 ano dito

An object is placed 30 cm from a concave mirror of focal length 15 cm. Which of the following is the description of the image formed? real, inverted and enlarged virtual, erect, and same size as object real, inverted, and same size as the object20 virtual, inverted, and same size as object

An object is placed 20-cm from a concave mirror. An image 4x the size of the object is formed on the screen. What is the focal length of the mirror? *solving 32 cm 20 cm 24 cm 16 cm

Looking down on a swimming pool, you see a coin at the bottom of the pool. The coin appears to be at a depth of 1.5 m. How deep is the pool? 1.6 m 1.8 m 1.1 m 2.0 m

An object is placed 30 cm from a converging lens of focal length 10 cm. Which of the following is the description of the image formed? virtual, inverted, and same size as object real, inverted, and same size as the object real, inverted and enlarged real, inverted and diminished pakicheck na lng if tama haha

In the figure a light ray travels in three different media where n1 =  1.50, n2 =  2.00, and n3 =  o 1.33. If θA = 30 , what is the value of θC?

o

41.81

o

34.33

o

14.44

o

22.02

If a convex mirror has a focal length of 10 cm, at which object distance will an image smaller than object be formed on the screen? 15 cm 5 cm 20 cm

None of the choices is correct. Which of the following is an image formed by a diverging (or concave) lens? real, inverted, enlarged, and located on the other side of the lens real, inverted, diminished, and located on the same side of the lens virtual, erect, enlarged, and located on the other side of the lens -virtual, erect, diminished, and located on the same side of the lens-tama this

Which of the following lenses may not be a converging lens? The lens is used for reading glasses. A lens with one side plane and the other side is convex- eto yata. A lens with one side convex and the other side concave. A lens with two convex surfaces. Which of the following does not use a converging mirror? a dentist's mouth mirror

a car's rear-view mirror a shaving mirror

a reflecting telescope

An object is placed at a distance of 20.0 cm from a converging lens of focal length 15.0 cm. Which of the following is the image formed?

The image is located 30 cm on the same side of the lens, and 1/3x as large as the object. The image is located 60 cm on the same side of the lens, and 1/3x as large as the object. The image is located 30 cm on the other side of the lens, and 3x as large as the object. The image is located 60 cm on the other side of the lens, and 3x as large as the object. A ray of light in medium 1 parallel to the base of the prism, enters the prism (medium 2). Regardless of which medium is optically denser, which among paths A, B, C, and D cannot be the path of the refracted ray? A. B. C. D.

D only B AND C A ONLY A AND D

If the object is placed in front of a concave mirror, at an object distance 3x the magnitude of the focal length, which of the following is incorrect? Consider the magnitudes only. The image height is 0.5 times the object height. The image is inverted. The image distance is 1.5 times the focal length. The image distance is 0.5 times the object distance. A ray of light in air parallel to the base of the prism enters a glass prism. What is the value of θ4 ?

o

19.47

o

40.53

o

25.67

o

77.10

A ray of light in air parallel to the base of the prism enters a glass prism. What is the value of θ 3  ?  40.53

For what position of the object will a spherical concave mirror not project an image on the screen? beyond the center of curvature

between the focus and the mirror between focus and center

at the center of curvature

If a converging lens has a focal length of 20 cm, at which object distance will an image larger than object be formed on the screen? 20 cm 50 cm 30 cm 40 cm An object is placed at a distance of 10.0 cm from a concave mirror of focal length 15.0 cm. Which of the following is the image formed? The image is located 30 cm in front of the mirror, real, and inverted. The image is located 30 cm in front of the mirror and 3x as large as the object.

The image is located 30 cm behind the mirror and 3x as large as the object.-etooooo The image is located 30 cm behind the mirror, virtual, and diminished.

The figure shows the path of a light ray as it travels in different media. If θB is greater than θA, which of the following is NOT true?

θB is equal to θ  C

n1 is  greater than n2

The critical angle is greater than θB.

If the object is placed in front of a concave mirror, at an object distance half the magnitude of the focal length, which of the following is correct? Consider the magnitudes only. hi = 2f hi = 0.5 ho di = 0.5 do di = f

Which of the following is a principal ray for a converging lens? A light parallel to the principal axis is refracted to the center on the other side of the lens.

A light ray parallel to the principal axis is refracted to the focus on the other side of the lens.

A light ray passing through the focus before the lens are refracted to the focus on the other side of the lens. A light ray passing through the optical center of the lens will be refracted parallel to the principal axis.

An object is placed at a distance of 10.0 cm from a converging lens of focal length 5.00 cm. Which of the following is the image formed? di = -3.33 cm and M = +0.333 di = +3.33 cm and M = -0.333 di = -10.0 cm and M = +1.00 di = 10.0 cm and M = -1.00 -vitug

An object is placed 20-cm from a diverging lens. An image 0.5 times the size of the object is formed. What is the focal length of the lens? +6.67 cm –20 cm –10 cm

+20 cm An object is placed at an object distance equal to the magnitude of the focal length of a diverging lens. Which of the following is NOT true? Consider...