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

Maximum detail of object can be seen from a microscope wen light used is of

Shorter wavelength A
Longer wavelength B
White light C
Any light D

Question # 2

Power of a lens is equal to

Focal length in meters A
Reciprocal of focal length expressed in meters B
Double the focal length C
Half the focal length D

Question # 3

On a rainy day if there is an oil drop on tar road colored rings are seen around this drop This is because of

Interference pattern produced due to thin oil film A
Diffraction pattern B
Polarization C
Total internal reflection of light D

Question # 4

Using a graded index fibres the time difference is reduced to about

0.5 ns per km A
1.0 ns per km B
2.0 ns per km C
2.3 ns per km D

Question # 5

In single slit diffraction the condition for second minimum is

Sinθ = λ A
d Sinθ =2λ B
d Sinθ =3λ C
d Cosθ =0 D

Question # 6

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 # 7

Which one of the following phenomena is not explained by Huygen's construction of wavefront?

Refraction A
Reflection B
Diffraction C
Origin of spectra D

Question # 8

When the length of a microscope tube increases its magnifying power

Decreases A
Increases B
Does not change C
May increase or decrease depending on the observer and the place of observation D

Question # 9

The experimental evidence in support of wave theory in Huygen's time was

not present A
not convincing B
convincing C
none of them D

Question # 10

The index of refraction of diamond is 2.0 velocity of light in diamond in m/s is

6 x 10⁸ A
3 x 10⁸ B
2 x 10⁸ C
1.5 x 10⁸ D

Question # 11

Light appears to travels in straight lines since

It is not absorbed by the atmosphere A
It is reflected by the atmosphere B
Its wavelength is very small C
Its velocity is very large D

Question # 12

The speed of light in a medium of refractive index 1.5 is

3 x 10⁸ms^-1 A
4.5 x 10⁸ms^-1 B
2.0 x 10⁸ms^-1 C
None of these D

Question # 13

Due to Plano convex lens and the plane glass plate the thickness of air film changes from the center to outward

Increasing gradually A
Decreasing gradually B
It is constant at the centre C
None of these D

Question # 14

The medium in which speed of light is the same in all directions is called:

Homogeneous A
Heterogeneous B
Non-homogeneous C
Free space D

Question # 15

Michelson's interferometer is an instrument that is capable of measuring distance with

low precision A
high precision B
extremely high precision C
extremely low precision D

Question # 16

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

1890 A
1905 B
1914 C
1944 D

Question # 17

Frequency of red colour as compared to that of violet colour is:

Equal A
Smaller B
Greater C
None of these D

Question # 18

Calculate the critical angle when core refractive index is 1.50 and cladding of refractive index 1.48

70.3^o A
80.9^o B
80.6^o C
89.6^o D

Question # 19

In case of YDS experiment, the distance of the mth bright fringe on the screen from center is

Y = (m + 1)λL/d A
Y = mλL/d B
Y = (m + 1/2)λL/d C
None of these D

Question # 20

Spectrometer can be used to

Measure wave length of light A
Measure refractive index of the materials B
Study spectra of light C
All D

Submit

Prepare Complete Set Wise MDCAT Physics Chapter 7 Light Online Test MCQs Online With Answers

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20 Questions
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Set 2

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Set 3

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Set 4

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Set 5

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Set 6

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Set 7

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Set 31

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Set 32

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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	One cannot see through fog because	A. Fog absorbs light B. The refractive index of fog is infinity C. Light suffers total reflection at the droplet in a fog D. Light is scattered by the droplets in fog
2	The typical wavelength of the signal which we sent in the optical fibre is	A. 1000 nm B. 100 m C. 1.3 mn D. 1.3μm
3	A fiber of 50μm diameter capable of carrying white light at ______ distances is called ______ index fiber	A. Large, multi-mode step B. Small, multi-mode step C. Small, multi-mode graded D. Large, single mode step
4	In compound microscope image formed is	A. Real erect and diminished B. Virtual inverted magnitude C. Real inverted and magnified D. Virtual inverted and magnified
5	Who proposed wave theory of light	A. Huygens B. Galileo C. Einstein D. Newton
6	The light signals are sent from the source	A. A ordinary source B. A monochromatic light source C. A moulticolour source D. None of these
7	The distance between the two mirrors can be varied by	A. Moving glass plate B. Movable mirror C. Compensator plate D. None of these
8	The digital modulation is expressed in	A. Bytes B. Codes C. Bits D. None of these
9	Conditions for interference are that the two sources should be coherent and	A. At a far off distance B. Close together C. Coinciding D. None of these
10	When a ray of light goes from a denser medium into a rare medium	A. The wavelength of light is decreased B. The frequency of light increased C. The speed of light is increased D. The light undergoes a phase change of π

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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

Maximum detail of object can be seen from a microscope wen light used is of

Power of a lens is equal to

On a rainy day if there is an oil drop on tar road colored rings are seen around this drop This is because of

Using a graded index fibres the time difference is reduced to about

In single slit diffraction the condition for second minimum is

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

Which one of the following phenomena is not explained by Huygen's construction of wavefront?

When the length of a microscope tube increases its magnifying power

The experimental evidence in support of wave theory in Huygen's time was

The index of refraction of diamond is 2.0 velocity of light in diamond in m/s is

Light appears to travels in straight lines since

The speed of light in a medium of refractive index 1.5 is

Due to Plano convex lens and the plane glass plate the thickness of air film changes from the center to outward

The medium in which speed of light is the same in all directions is called:

Michelson's interferometer is an instrument that is capable of measuring distance with

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

Frequency of red colour as compared to that of violet colour is:

Calculate the critical angle when core refractive index is 1.50 and cladding of refractive index 1.48

In case of YDS experiment, the distance of the mth bright fringe on the screen from center is

Spectrometer can be used to

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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