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

Single mode step index fibre has a very thin core of about diameter

5.5 μm A
9.5 μm B
5.0 μm C
All of these D

Question # 2

A glass plate on which a large number of very fine equidistant parallel lines are drawn is called

convex lens A
thin film B
diffraction grating C
interferometer D

Question # 3

Newton's rings are:

Concetric circles A
spherical B
None of these C
Rectangular D

Question # 4

A double convex lens act as a diverging lens when the object is

Inside the focus A
Between f and 2f B
At the focus C
At a large distance D

Question # 5

Which of the following types of optical fibre has a very thin core of about 5μm diameter and has a relatively large cladding?

single mode step index fibre A
multi-mode step index fibre B
multi-mode graded index fibre C
none of them D

Question # 6

A ray of light always points

Anti parallel to wave front A
Perpendicular to wave front B
Parallel to wave lets C
None D

Question # 7

If the slits in YDS experiment are made closer, fringe spacing will:

Increase A
Decrease B
Remain same C
None of above D

Question # 8

If d = 0.25 cm Y = 0.059 cm L = 100 cm m = 2 then λ is equal to

567 nm A
569 nm B
590 nm C
596 nm D

Question # 9

If red light is incident on sea water it appears

Red A
Green B
Blue C
Yellow D

Question # 10

Michelson interferometer is based upon

Interference A
Diffraction B
Polarization C
Reflection D

Question # 11

Which effect provides direct experimental evidence that light is a transverse rather than a longitudinal wave motion?

Light can be diffracted A
Two coherent light waves can be made to interfere. B
The intensity of light from a point source falls off inversely as the square of the distance from the source C
Light can be polarized D

Question # 12

To demonstrate the phenomenon of interference we require two sources that emit radiation

Of same frequency A
Different wavelength B
Of the same frequency and having definite phase relationship C
Of nearly the same frequency D

Question # 13

If 5000 lines/cm are ruled on a diffraction grating, the element is:

5 x 10^-5m A
2 x 10^-6m B
5 x 10^-6m C
2 x 10^-5m D

Question # 14

Monochromatic light means waves of:

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

Question # 15

Single mode step index fibre has

Thick core and large cladding A
Thick core and shorter cladding B
Thin core and shorter cladding C
Thin core and larger cladding D

Question # 16

The phenomenon of polarization proves that the light waves are

Transverse wave A
Longitudinal waves B
Stationary waves C
None of these D

Question # 17

When monochromatic light is incident, making certain angle, on a thin parallel film, the interference fringes formed are

straight A
circular B
square C
plane D

Question # 18

When the same object is viewed at a shorter distance the image on the retina of eye is and so the object appears

Greater, small A
Smaller, smaller B
Smaller, larger C
Greater, larger D

Question # 19

Diffraction of X-ray by crystals show that

The intensity of X-rays A
X-rays have very short wavelength B
X-rays are electromagnetic waves C
A-rays are just like visible light D

Question # 20

In normal adjustment, the length of the telescope is

f_e + f_o A
f_o - f_e B
f_e - f_o C
None of these D

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Set 39

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Sr.#	Question	Answer
1	Which does not show polarization?	A. Longitudinal waves in gas B. Transverse wave in gas C. Both A and B D. None of these
2	Identify the incorrect statement	A. The distance between the objective and eye-piece is 16.02 cm B. The angular magnification of the planet is 800 C. The image of the planet is inverted D. The objective is larger than the eye-piece
3	When 'θ' is small then	A. tan θ ≈ sin θ B. cos θ ≈ sin θ C. sin θ ≈ tan θ D. None of these
4	The frequency of light ray is 6 x 10¹⁴ Hz. The frequency when it propagates in a medium of refractive index 1.5 will be	A. 6 x 10¹⁴ Hz B. 4 x 10¹⁴ Hz C. 9 x 10¹⁴ Hz D. 1.67 x 10¹⁴ Hz
5	A beam of light of wavelength is incident normally on a grating of element d the angle between the zero-order and first -order spectra depends on	A. λ only B. d only C. λ and d D. λ d and distance of screen from the grating
6	The experimental evidence in support of wave theory in Huygen's time was	A. not present B. not convincing C. convincing D. none of them
7	To find wavelength of light by his experiment. Newton utilized:	A. Principle of phase change B. Snell's Law C. Bragg's law D. Both (A) and (C)
8	Reflection of light from water, glass, snow and rough road surfaces, for larger angle of incidences, produces	A. images B. bright images C. interference D. glare
9	When the light is incident on polarizing angle which of the following is completely polarized?	A. Reflected light B. Refracted light C. Both reflected and refracted light D. Neither reflected nor refracted light
10	The speed of light in a medium of refractive index 1.5 is	A. 3 x 10⁸ms^-1 B. 4.5 x 10⁸ms^-1 C. 2.0 x 10⁸ms^-1 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

Single mode step index fibre has a very thin core of about diameter

A glass plate on which a large number of very fine equidistant parallel lines are drawn is called

Newton's rings are:

A double convex lens act as a diverging lens when the object is

Which of the following types of optical fibre has a very thin core of about 5μm diameter and has a relatively large cladding?

A ray of light always points

If the slits in YDS experiment are made closer, fringe spacing will:

If d = 0.25 cm Y = 0.059 cm L = 100 cm m = 2 then λ is equal to

If red light is incident on sea water it appears

Michelson interferometer is based upon

Which effect provides direct experimental evidence that light is a transverse rather than a longitudinal wave motion?

To demonstrate the phenomenon of interference we require two sources that emit radiation

If 5000 lines/cm are ruled on a diffraction grating, the element is:

Monochromatic light means waves of:

Single mode step index fibre has

The phenomenon of polarization proves that the light waves are

When monochromatic light is incident, making certain angle, on a thin parallel film, the interference fringes formed are

When the same object is viewed at a shorter distance the image on the retina of eye is ______ and so the object appears ______

Diffraction of X-ray by crystals show that

In normal adjustment, the length of the telescope is

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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When the same object is viewed at a shorter distance the image on the retina of eye is and so the object appears