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 ratio of size of the image to the size of the object is called

Resolving power A
Magnification B
Power C
None of these D

Question # 2

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

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

Question # 3

Michelson's interferometer is an instrument used to measure the distance with

Precision A
High precision B
Extremely high precision C
None of these D

Question # 4

A typical diffraction grating has lines per centimeter is about

500 to 6000 A
400 to 5000 B
450 to 5500 C
425 to 5670 D

Question # 5

A diffraction grating has 500 liens per mm. its slit spacing or grating element will

500 mm A
5 x 10^-3mm B
2 x 10^-5mm C
2 x 10^-3mm D

Question # 6

The total internal reflection takes place for glass-air boundary is then the angle is

Equal to 41.8^o A
Greater than 41.8^o B
Less than 41.8^o C
None of these D

Question # 7

The twinkling of stars is due to

The fact that stars do not emit light continususly A
The refractive index of the earth's atmosphere fluctuate B
Intermittent absorption of star light by its own atmosphere C
None of these D

Question # 8

For total internal reflection to take place, the angle of incidence must be than critical angle and the light should travel from to __ medium

Greater, rarer, denser A
Smaller, rarer, denser B
Smaller, denser, rarer C
Greater, denser, rarer D

Question # 9

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 # 10

A spectrometer is used to find

Wavelength of light A
Refractive index of the prism B
Angle of minimum deviation of prism C
All of these D

Question # 11

Multimode step index fibre has diameter as

40 μm A
50 μm B
60 μm C
None of these D

Question # 12

A fly is sitting on the objective of a telescope pointed towards the moons what effect is impacted in a photograph of the moon taken through the telescope

The entire field of vision is blocked A
There is image of the fly on the photograph B
There is no effect at all C
There is the reduction in intensity of the image D

Question # 13

Michelson,s interferometer can be used to measure

Wavelength of light A
Intensity of light B
Amplitude of wave C
None of these D

Question # 14

The typical wavelength of the signal which we sent in the optical fibre is

1000 nm A
100 m B
1.3 mn C
1.3μm D

Question # 15

Which of the following cannot be polarized?

x-rays A
light rays B
sound waves C
ultraviolet rays D

Question # 16

The cause of mirage observed in desert is

Refraction A
Reflection B
Scattering C
Total internal reflection D

Question # 17

For a monochromatic light passing from air to glass, which one of the following statement is true?

Frequency and wavelength decreases A
Frequency increases and wavelength decreases B
Frequency stays same, wavelength increases C
Frequency stays the same, wavelength decreases D

Question # 18

A polaroid is:

An adjustable shutter A
A device used to analyze polarized light B
A device used in polarimeter C
A light filter D

Question # 19

The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself

Equal to A
Greater than B
Smaller than C
None of these D

Question # 20

If the cover of a red book is observed in monochromatic blue light,It will appear

White A
Red B
Black C
Blue 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 7

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Set 28

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Set 33

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Set 35

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Set 37

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Set 38

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Set 39

9 Questions
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Sr.#	Question	Answer
1	For single slit diffraction the first minimum occurs when	A. dsinθ = λ B. dsinθ = λ/2 C. dsinθ = 2λ D. dsinθ = mλ
2	The distance between the top adjacent slits on diffraction grating is called	A. element B. grating element C. aperture D. slit
3	In Bragg's formula, the path difference should beam integral multiple of the wavelengths	A. d sin θ = nλ B. d sin 2θ = nλ C. 2 d sin θ = nλ D. None of these
4	If the slits in YDS experiment are made closer, fringe spacing will:	A. Increase B. Decrease C. Remain same D. None of above
5	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
6	Michelson interferometer is based upon	A. Interference B. Diffraction C. Polarization D. Reflection
7	The relation between displacement of the mirror 'L' and wavelength λ of the light used	A. L = 2mλ B. L = λ/2m C. L = mλ/2 D. None of these
8	The least distance of he distinct vision is	A. 20 cm B. 22 cm C. 25 cm D. 30 cm
9	For total internal reflection to take place, the angle of incidence must be ______ than critical angle and the light should travel from ______ to ______ medium	A. Greater, rarer, denser B. Smaller, rarer, denser C. Smaller, denser, rarer D. Greater, denser, rarer
10	Can two lights of car can produce interference	A. Yes B. No C. Partly produce interference 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 ratio of size of the image to the size of the object is called

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

Michelson's interferometer is an instrument used to measure the distance with

A typical diffraction grating has lines per centimeter is about

A diffraction grating has 500 liens per mm. its slit spacing or grating element will

The total internal reflection takes place for glass-air boundary is then the angle is

The twinkling of stars is due to

For total internal reflection to take place, the angle of incidence must be ______ than critical angle and the light should travel from ______ to ______ medium

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

A spectrometer is used to find

Multimode step index fibre has diameter as

A fly is sitting on the objective of a telescope pointed towards the moons what effect is impacted in a photograph of the moon taken through the telescope

Michelson,s interferometer can be used to measure

The typical wavelength of the signal which we sent in the optical fibre is

Which of the following cannot be polarized?

The cause of mirage observed in desert is

For a monochromatic light passing from air to glass, which one of the following statement is true?

A polaroid is:

The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself

If the cover of a red book is observed in monochromatic blue light,It will appear

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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For total internal reflection to take place, the angle of incidence must be than critical angle and the light should travel from to __ medium