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

The central point in the Newton's rings is dark due to

Destructive interference A
Constructive interference B
Additional of path difference λ/2 C
b and c D

Question # 2

Spherical aberration can be reduced by using

Convex lens A
All the portions of the lens B
Central portion of the lens C
Upper portion of the lens D

Question # 3

Point out angle/angle at which the sin θ and tan θ have the same value

2^o and 8^o A
4^o and 6^o B
2^o and 4^o C
8^o and 10^o D

Question # 4

In Multimode step index fibre the refractive index from its centre to the boundary is

1 A
1.55 B
1.52 C
1.43 D

Question # 5

The optical fibre has a layer over the central layer is called cladding of refractive index

High A
Low B
Very high C
None of these D

Question # 6

Alexander graham bell transmits a voice message via a

Beam of light A
Telescope B
Compound microscope C
Mirror D

Question # 7

Which of the following light move faster in water

Red A
Violet B
Green C
Blue D

Question # 8

Which of the following converts electrical signals into light signals?

optical fibre A
receiver B
reflector C
transmitter D

Question # 9

In the relations d sinθ = nλ, shows that the value of θ depends upon 'n' so the images of different colours are much separated in

Low orders A
Middle orders B
High order C
None of these D

Question # 10

The idea of Michelsion's interferometer is based on the

reflection of light A
interference of light B
refraction of light C
all of them D

Question # 11

In Michelsion's interferometer, if a dark fringe is seen in the beginning, the next dark fringe will appear by moving the moveable mirror through a distance

λ/2 A
λ/4 B
λ C
2λ D

Question # 12

When two light waves travelling in the same direction are out of phase at any point, their resultant amplitude

increases A
decreases B
remains unchanged C
increases rapidly D

Question # 13

Two sources of waves are called coherent if

Both have the same amplitude of vibrations A
Both produce waves of the same wavelength B
Both produce waves of the same wavelength having a constant phase difference C
Both produce waves having the same velocity D

Question # 14

A line normal to the wave front is called

A beam of light A
A ray of light B
Both C
None of these D

Question # 15

Which of the following is the most common method to obtain polarized light?

selective absorption A
reflection from different surfaces B
refraction through crystals C
scattering by small particles D

Question # 16

The path difference involved in interference in thin films depends upon

Thickness and nature of thin films A
Angular of incidence of light B
Nature of media on both sides of thin film C
All of these D

Question # 17

We can observe only when the grating spacing is

of the order of the wavelength used A
greater than the wavelength used B
less than the wavelength used C
any one of them D

Question # 18

A simple telescope is consists of

One convex lens A
Two convex lenses B
Three convex lenses C
None of these D

Question # 19

The spacing between the parallel lines are served as

slits A
source of light B
opaque lines C
fringes D

Question # 20

Experimental demonstration of wave nature of light was given in 1801 by

New ton A
Maxwell B
Thomas young C
Huygen 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	The light source in the transmitter can be either	A. Light emitting diode B. Semiconductor laser C. Light emitting in an invisible infra red D. All of these
2	If the red light is replaced by blue light illuminating the object in a microscope the resolving power of the microscope	A. Decreases B. Increases C. Gets halved D. Remains unchanged
3	Wave length of red colour as compared to that of violet colour is:	A. Smaller B. Longer C. Equal D. None of these
4	In which mode, the refractive index steps down form 1.52 to 1.48 at the boundary with the cladding?	A. Single mode step index B. multimode step index C. multimode graded index D. all of them
5	The wave nature of light was first proposed by	A. Huygen B. Thomas Young C. Newton D. Compton
6	If 5000 lines per cm are ruled on different on a diffraction grating then the slit spacing will be	A. 5 x 10^-3A° B. 2 x 10^-4A° C. 5 x 10^-5A° D. 2 x 10⁴A°
7	The colour of light is determined by is	A. Wavelength B. Frequency C. Velocity D. Amplitude
8	The image formed by an eyepiece of compound microscope is	A. Real and diminished B. Real and enlarged C. Virtual and enlarged D. Virtual and diminished
9	Which of the following is not an advantages of using optical fibres over copper cables?	A. signal attenuation B. number of signals carried per wire C. cost of installation D. none of the above
10	In an interference fringes pattern the fringes are	A. Equally spaced B. Wider near the centre and narrower away from it C. Narrower near the centre and wider away from it D. None of these

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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

The central point in the Newton's rings is dark due to

Spherical aberration can be reduced by using

Point out angle/angle at which the sin θ and tan θ have the same value

In Multimode step index fibre the refractive index from its centre to the boundary is

The optical fibre has a layer over the central layer is called cladding of refractive index

Alexander graham bell transmits a voice message via a

Which of the following light move faster in water

Which of the following converts electrical signals into light signals?

In the relations d sinθ = nλ, shows that the value of θ depends upon 'n' so the images of different colours are much separated in

The idea of Michelsion's interferometer is based on the

In Michelsion's interferometer, if a dark fringe is seen in the beginning, the next dark fringe will appear by moving the moveable mirror through a distance

When two light waves travelling in the same direction are out of phase at any point, their resultant amplitude

Two sources of waves are called coherent if

A line normal to the wave front is called

Which of the following is the most common method to obtain polarized light?

The path difference involved in interference in thin films depends upon

We can observe only when the grating spacing is

A simple telescope is consists of

The spacing between the parallel lines are served as

Experimental demonstration of wave nature of light was given in 1801 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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