MDCAT Physics Chapter 7 online mcq test with answers for chapter 7 (Current Electricity)

MCQ's Test For MDCAT Physics Chapter 7 Light Online Test

Try The MCQ's Test For MDCAT Physics Chapter 7 Light Online Test

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

On a rainy day if there is an oil drop on tar road colored rings are seen around this drop This is because of

Interference pattern produced due to thin oil film A
Diffraction pattern B
Polarization C
Total internal reflection of light D

Question # 2

To observe diffraction phenomenon the size of a obstacle

Should be much larger than the wavelength A
Should be of the same order as the wavelength B
Have no relation of wavelength C
Should be exactly λ/2 D

Question # 3

The spacing between lines of diffraction grating is

Opaque A
Transparent B
Semi-transparent C
None of these D

Question # 4

In an astronomical telescope is the objective has the focal length f_o is

Small A
Very small B
Long C
None of these D

Question # 5

To increase the magnification of a telescope

The objective lens should be of large focal length and eyepiece should be of short focal length A
The objective and eyepiece both should be of large focal lengths B
Both the objective and eyepiece should be of smaller lengths C
The objective should be small focal length and eyepiece should be of large focal length D

Question # 6

Angle between ray of light and the corresponding wavefront is:

0° A
60° B
90° C
120° D

Question # 7

According to Huygen,every point on a wavefront may be regarded as a.........of secondary wavelets.

Base A
Source B
Producer C
Origin D

Question # 8

The bending of light when it passes from one medium to another is known as

Refraction A
Interference B
Polarization C
Diffraction D

Question # 9

The relation for the diffraction pattern, when it is minimum

d/2 sin θ = λ A
sin θ = λ/2 B
d sin θ = λ C
None of these D

Question # 10

The time taken by the mirror M to rotate through an angle 2π/8 is

1/8 f A
1/16 f B
1/4 f C
1/2 f D

Question # 11

The image formed by an eyepiece of compound microscope is

Real and diminished A
Real and enlarged B
Virtual and enlarged C
Virtual and diminished D

Question # 12

Commercial polarizing material is

Colour glass A
Infra red glass B
Polaroid glass C
None of these D

Question # 13

Which one of the following waves cannot be polarized

Radio waves A
X-rays B
Transverse waves in a string C
Longitudinal waves in a gas D

Question # 14

The bottom of a container filled with liquid appear slightly raised because of

Refraction A
Interference B
Diffraction C
Reflection D

Question # 15

When interference of light takes place

Energy is created in the region of maximum intensity A
Energy is destroyed in region of maximum intensity B
Conservation of energy hold goods and energy is redistributed C
Conservation of energy does not hold good D

Question # 16

A convex lens has focal length F.An object is placed at P then

Image is formed at + ∞ and is real A
Image is formed at + ∞ and is virtual B
Image is formed at + ∞ and is real C
Image is formed at + and is virtual D

Question # 17

Sunset makes sky appears reddish because of:

Diffraction of sun rays A
Refraction of light B
Scattering of light from dust particles C
Polarization of ligth D

Question # 18

A limited region taken on a wavefront which is far away form the source is

plane wavefront A
circular wavefront B
spherical wavefront C
elliptical wavefront D

Question # 19

Conditions for interference are that the two sources should be coherent and:

At the far off distance A
Close together B
Coinciding C
None of these D

Question # 20

If we know the refractive index of glass, speed v of light in the glass can be found by

v = c n A
v = c/n B
v = n/c C
None of these D

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Prepare Complete Set Wise MDCAT Physics Chapter 7 Light Online Test MCQs Online With Answers

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Set 39

9 Questions
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Sr.#	Question	Answer
1	Whenever high magnification is desired	A. A telescope is used B. A compound microscope is used C. A microscope is used D. None of these
2	A converging lens in used to from an image on a screen when the upper half of the lens is covered by an opaque screen	A. Half the image will disappear B. No change either in size or in intersity C. Intensity of image will increase D. Intensity of the image will decrease
3	Wavelength of X-rays falling at glace angle 30° on crystal with atomic spacing 2 x 10^-9m for the first order diffraction is	A. 4 x 10^-6m B. 2 x 10^-10m C. 0.2 x 10^-10m D. 20 x 10^-10m
4	The wave propagates in space by the motion of the	A. Particles B. Wavefronts C. Wavelength D. None of these
5	We can divide the optical fibres on the basis of the mode by which they propagate light in	A. two types B. three types C. four types D. many types
6	An image formed by a concave lens is always	A. Virtual B. Real C. Inverted D. None of these
7	In the thin film, the path difference between the two reflecting waves depends upon	A. thickness of film B. nature of film C. angle of incidence D. all of them
8	In Michelson's interferometer , the plates are placed in front of incident ray at an angle of:	A. 45^o B. 60^o C. 90^o D. 120^o
9	Graham Bell photo phone used a modulated beam of	A. Reflected sun light B. Refracted sun light C. Diffracted sun light D. None of these
10	In Young's double slit experiment fringe width (or fringe spacing) depends	A. inversely on wavelength B. directly on wavelength C. directly on square of wavelength D. inversely on square of wavelength

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MDCAT Physics Chapter 7 MCQ Test With Answer for (Light )

MCQ's Test For MDCAT Physics Chapter 7 Light Online Test

MDCAT Physics Chapter 7 Light Online Test

On a rainy day if there is an oil drop on tar road colored rings are seen around this drop This is because of

To observe diffraction phenomenon the size of a obstacle

The spacing between lines of diffraction grating is

In an astronomical telescope is the objective has the focal length fo is

To increase the magnification of a telescope

Angle between ray of light and the corresponding wavefront is:

According to Huygen,every point on a wavefront may be regarded as a.........of secondary wavelets.

The bending of light when it passes from one medium to another is known as

The relation for the diffraction pattern, when it is minimum

The time taken by the mirror M to rotate through an angle 2π/8 is

The image formed by an eyepiece of compound microscope is

Commercial polarizing material is

Which one of the following waves cannot be polarized

The bottom of a container filled with liquid appear slightly raised because of

When interference of light takes place

A convex lens has focal length F.An object is placed at P then

Sunset makes sky appears reddish because of:

A limited region taken on a wavefront which is far away form the source is

Conditions for interference are that the two sources should be coherent and:

If we know the refractive index of glass, speed v of light in the glass can be found by

Prepare Complete Set Wise MDCAT Physics Chapter 7 Light Online Test MCQs Online With Answers

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

Set 7

Set 8

Set 9

Set 10

Set 11

Set 12

Set 13

Set 14

Set 15

Set 16

Set 17

Set 18

Set 19

Set 20

Set 21

Set 22

Set 23

Set 24

Set 25

Set 26

Set 27

Set 28

Set 29

Set 30

Set 31

Set 32

Set 33

Set 34

Set 35

Set 36

Set 37

Set 38

Set 39

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In an astronomical telescope is the objective has the focal length f_o is