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

For glass-air boundary the critical angle θ_c is

30^o A
41.8^o B
42.0^o C
44.0^o D

Question # 2

When the light is incident on polarizing angle which of the following is completely polarized?

Reflected light A
Refracted light B
Both reflected and refracted light C
Neither reflected nor refracted light D

Question # 3

The ultra-purity of optical fibre is

90 % A
99 % B
99.9 % C
99.99 % D

Question # 4

In thin film colours are due to

Reflection A
Interference B
Diffraction C
Refraction D

Question # 5

The study of atomic structures of crystals by X-rays was started in

1890 A
1905 B
1914 C
1944 D

Question # 6

In light waves, the components of electric and magnetic fields are

parallel to each other A
anti-parallel to each B
right angle to each other C
none of them D

Question # 7

The phenomenon of diffraction can be exhibited by

Polarized waves only A
Un polarized waves only B
Longitudinal waves only C
All polarized or un polarized waves and longitudinal or transverse waves D

Question # 8

Diffraction of light occurs, due to the interference between rays coming from the same wavefront of

The same parts A
The different parts B
Mixed rays C
None of these D

Question # 9

Newton's rings are:

Rectangular A
Spherical B
Concentric circles C
None of these D

Question # 10

When a movable mirror moves λ/4 distance and the light used is 400 nm, then the distance measured highly precise is

100 nm A
10^-4 nm B
10^-6 nm C
10^-5 mm D

Question # 11

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 # 12

The fiber of which refractive index gradually as move from central core to its periphery is called index fiber

Decreases, multi-mode graded A
Increases, single mode step B
Either of A or B C
Increases, multi-mode step D

Question # 13

Which light travels faster in optical fibres?

visible light A
ultraviolet B
infra-red C
any one of them D

Question # 14

The scattering of X-rays from atoms in a crystalline lattice gives rise to

Interference A
Diffraction B
Reflection C
None of these D

Question # 15

Monochromatic light directly means waves of

Same frequency A
Same color B
Same wavelength C
All of them D

Question # 16

When crest of one wave coincides with the trough of the other wave, it give rise to

dispersion A
constructive interference B
destructive interference C
polarization D

Question # 17

Propagation of light in an optical fiber requires that light should be

Refracted from air to fiber A
Continuously refraction B
Totally reflected within the fiber C
Both B and C D

Question # 18

YDS experiment can be used to determine:

Grating element A
Fringe spacing B
Wave length of monochromatic light C
Frequency of wave light D

Question # 19

A compound microscope is consists of an eye piece of focal length

Short A
Very short B
Large C
Very large D

Question # 20

In the formulaα_amino= 1.22λ/D, D denotes

Distance between source and the object A
Diameter of lens B
Power of the lens in Diopters C
None of these D

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Set 39

9 Questions
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Sr.#	Question	Answer
1	For glass-air boundary, the value of the critical angle is	A. 42° B. 45° C. 30° D. 60°
2	Soap bubble looks colored due to	A. Dispersion B. Reflection C. Interference D. Any one of these
3	Which property of waves proves that light is a transverse wave?	A. diffraction B. interference C. polarization D. reflection
4	The typical wavelength of light source in transmitter is	A. 1.1 μm B. 1.2 μm C. 1.3 μm D. 1.4 μm
5	When two light waves travelling in the same direction are out of phase at any point, their resultant amplitude	A. increases B. decreases C. remains unchanged D. increases rapidly
6	Certain light of wavelength 600 nm is used to view an object under the microscope. If the aperture of its objective is 1.22 cm, then the limiting angle of resolution will be	A. 6 x 10^-5rad B. 7 x 10^-5rad C. 8 x 10^-5rad D. None of these
7	When a movable mirror moves λ/4 distance and the light used is 400 nm, then the distance measured highly precise is	A. 100 nm B. 10^-4 nm C. 10^-6 nm D. 10^-5 mm
8	Focal length of convex lens is maximum for	A. Blue light B. Yellow light C. Green light D. Red light
9	If the light travels in a straight line, the central region should appear	A. Bright B. Dark C. No effect D. None of these
10	The minimum number of lenses used in compound microscope is	A. 1 B. 2 C. 3 D. 4

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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

For glass-air boundary the critical angle θc is

When the light is incident on polarizing angle which of the following is completely polarized?

The ultra-purity of optical fibre is

In thin film colours are due to

The study of atomic structures of crystals by X-rays was started in

In light waves, the components of electric and magnetic fields are

The phenomenon of diffraction can be exhibited by

Diffraction of light occurs, due to the interference between rays coming from the same wavefront of

Newton's rings are:

When a movable mirror moves λ/4 distance and the light used is 400 nm, then the distance measured highly precise is

Spherical aberration can be reduced by using

The fiber of which refractive index ______ gradually as move from central core to its periphery is called ______ index fiber

Which light travels faster in optical fibres?

The scattering of X-rays from atoms in a crystalline lattice gives rise to

Monochromatic light directly means waves of

When crest of one wave coincides with the trough of the other wave, it give rise to

Propagation of light in an optical fiber requires that light should be

YDS experiment can be used to determine:

A compound microscope is consists of an eye piece of focal length

In the formulaαamino = 1.22λ/D, D denotes

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 glass-air boundary the critical angle θ_c is

The fiber of which refractive index gradually as move from central core to its periphery is called index fiber

In the formulaα_amino= 1.22λ/D, D denotes