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 optical resolution of microscope or a telescope tells us how close together, the two point sources of light can be so that they are still seen as two separate sources

Angular magnification A
Resolution B
Magnification C
None of these D

Question # 2

Critical angle of light passing from glass to air is minimum for

Red A
Green B
Yellow C
Violet D

Question # 3

When observed by transmitted light, the central band of newton's ring system consists of:

Bright circular ring A
Dark circular ring B
May be bright or dark circular ring C
No interference bands D

Question # 4

Which one of the following phenomenon cannot be explained by the wave theory of light ?

Reflection A
Refraction B
Photoelectric effect C
Diffraction D

Question # 5

The multi-mode step index optical fibre, the central core has

high refractive index and low density A
low refractive index and density B
low refractive index and low density C
high refractive index and high density D

Question # 6

When refractive index of core is 1.50 and of 1.48 of cadding then find the angle of entry for an optical fibre is

11.2^o A
14.2^o B
15.4^o C
13.6^o D

Question # 7

If a source of light is moving away from stationary observer then frequency of light wave appears to change because of

Doppler's effect A
Interference B
Diffraction C
None of the above D

Question # 8

In a astronomical telescope the final image for normal vision is formed at

The focal of the eye piece A
The least distance of the distinct vision B
The focus of the objective lens C
Infinity D

Question # 9

The speed of light in vacuum or in air is

3 x 10¹⁰ m ! s A
3 x 10⁹ m ! s B
3 x 10⁸ m ! s C
3 x 10⁷ m ! s D

Question # 10

The wavefront formed at very large distance from the source is:

Cylindrical A
Spherical B
Elliptical C
Plane D

Question # 11

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 # 12

In YDS experiment, data given isλ= 500 nm, L = 100 cm,Δy comes out to be

0.5 cm A
0.5 mm B
0.5 nm C
0.5 m D

Question # 13

When a ray of light goes from a denser medium into a rare medium

The wavelength of light is decreased A
The frequency of light increased B
The speed of light is increased C
The light undergoes a phase change of π D

Question # 14

In order to observe interference , the interfering beams must be

monochromatic A
coherent B
either of them C
both of them D

Question # 15

The ratio of diameters of two convex lenses is ______ the ratio of their focal lengths

Greater than A
Less than B
Equal to C
Square of D

Question # 16

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 # 17

Albert A. Michelson devised interferometer is

1820 A
1845 B
1860 C
1881 D

Question # 18

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 # 19

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 # 20

When a ray of light enters a denser medium from a rarer medium,its:

Wavelength increases A
Velocity increases B
Frequency decreases C
Wavelength decreases 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 38

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Set 39

9 Questions
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Sr.#	Question	Answer
1	Fire optics has ability to transmit	A. Thousand telephone conversation B. Several television programs C. Numerous data signals between stations D. All of these
2	For constructive interference the path difference is	A. mλ B. (m-1)λ C. m²λ D. 1/2mλ
3	Just before setting the sun may appear to be elliptical This happens due to	A. Diffraction B. Reflection C. Dispersion D. Refraction
4	The multi-mode step index optical fibre, the central core has	A. high refractive index and low density B. low refractive index and density C. low refractive index and low density D. high refractive index and high density
5	If the two reflected waves reinforce each other then the firm as seen from the parallel beam of monochromic light will look	A. Dark B. Bright C. Sometimes bright and dark D. None of these
6	A beam of light enters air from water.Which of the following characteristics of light will not change in water?	A. Frequency B. Wavelength C. Velocity D. Amplitude
7	The absence of light in the optical fibres represents the number	A. 0 B. 1 C. 2 D. -1
8	The final image obtained by astronomical telescope is	A. Inverted w.r.t object B. Magnified C. Virtual D. All of them
9	The function of compensator plate in interferometer is to	A. Interfere properly B. To equalize the distance of M₁ and M₂ C. Reflecting light properly D. None of these
10	In which situation does diffraction occur?	A. a wave bounces back from a surface B. a wave meets another wave to produce a new wave C. a wave passes from one medium into another D. a wave passes through an aperture

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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 optical resolution of microscope or a telescope tells us how close together, the two point sources of light can be so that they are still seen as two separate sources

Critical angle of light passing from glass to air is minimum for

When observed by transmitted light, the central band of newton's ring system consists of:

Which one of the following phenomenon cannot be explained by the wave theory of light ?

The multi-mode step index optical fibre, the central core has

When refractive index of core is 1.50 and of 1.48 of cadding then find the angle of entry for an optical fibre is

If a source of light is moving away from stationary observer then frequency of light wave appears to change because of

In a astronomical telescope the final image for normal vision is formed at

The speed of light in vacuum or in air is

The wavefront formed at very large distance from the source is:

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

In YDS experiment, data given isλ= 500 nm, L = 100 cm,Δy comes out to be

When a ray of light goes from a denser medium into a rare medium

In order to observe interference , the interfering beams must be

The ratio of diameters of two convex lenses is ______ the ratio of their focal lengths

When interference of light takes place

Albert A. Michelson devised interferometer is

To increase the magnification of a telescope

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

When a ray of light enters a denser medium from a rarer medium,its:

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