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

If the thickness of the film and angle of incidence are such that two reflected waves cancel each other the film will look

Dark A
Bright B
May be partly bright C
None of these D

Question # 2

At the point of contact of the lens and the glass plate, the Newton's ring is

dark A
bright B
either of them C
neither of them D

Question # 3

The wave length of x-rays is of the order of

10^-17 m A
10^-4 cm B
10^-9 m C
10^-10 m D

Question # 4

If the wavelength of light used in Michelsion's interferometer is 400 nm and the moveable mirror only moved throughλ/4, then the length moved will be

10 nm A
10^-2mm B
1 nm C
10^-4mm D

Question # 5

The normal human eye can focus a sharp image of an object located anywhere form infinity to a certain point called

Far point A
Near point B
distant point C
None of these D

Question # 6

Measurement of a standard metre in terms of the wavelength of red cadmium light is

1,563,163.5 A
1,553,363.5 B
155,553.5 C
1,553,163.5 D

Question # 7

Who devise the experimental arrangement in 1801 for studying interference effects of light

Huygen A
Young B
Newton C
None of these D

Question # 8

When a light signal travels along the length of the optical fibre, the power lost by it is due to

Reflection A
Refraction B
Seattering and absorption C
Diffraction D

Question # 9

How many types of the optical fibres are

One A
Two B
Three C
Four D

Question # 10

The distance between different interference fringes are:

Variable A
Same B
Different C
None of these D

Question # 11

Confining the light vibrations in one plane is called:

Reflection of light A
Interference of light B
Polarization of light C
Diffraction of light D

Question # 12

When a mirror of a Michelsion's interferometor is moved a distance of 0.5 mm, 2000 fringes are observed, the wavelength of the light used is

5000 mm A
5000°A B
500 cm C
2000°A D

Question # 13

If Young s double slit experiment is immersed in water then the fringes with

Decreases A
Remains unchanged B
Becomes infinite C
Increases D

Question # 14

In case of constructive interference of two waves, the amplitude of the resultant wave is_____either of the waves:

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

Question # 15

A lens behaves as a converging lens in air and a diverging lens in water the refractive index of the material is

Equal to unity A
Equal to 1.33 B
Between unity and 1.33 C
Greater than 1.33 D

Question # 16

A light wave produced by oscillating charge consists of a periodic variation of

electric field A
magnetic field B
either of them C
both of them D

Question # 17

All of the following statements are correct except

The total focal length of an astronomical telescope is the sum of the focal lengths of its two lenses A
The image formed by the astronomical telescope is always erect because the effect of the combination of the two lenses is divergent B
The magnification of an astronomical telescope can be increased by decreasing the focal length of the eyepiece. C

Question # 18

An optical instrument used to see very far off objects is called

Telescope A
Camera lens B
Microscope C
Spectrometer D

Question # 19

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 # 20

We can achieve polarization by

Absorption A
Reflection B
Scttering C
All of above D

Submit

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

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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 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	If λ = 589 nm d=1.0 mm L=225 cm then fringe spacing ΔY is given by	A. 1.76 mm B. 1.80 mm C. 1.37 mm D. 1.33 mm
2	Cladding in an optical fiber is used to	A. Absorb unneccessary light B. Produce total internal reflection C. Transmit light D. Filter light
3	Which of the following is not an advantages of using optical fibres over copper cables?	A. signal attenuation B. number of signals carried per wire C. cost of installation D. none of the above
4	Power loss taken place when a light signal travels along fibres by	A. Multiple reflection B. Light absorbed due to impurities in glass C. At joint some light is scattered by group of atoms D. All of these
5	The most common method to obtain plane polarized light by using dichoric substance is:	A. Selective absorption B. Reflection from different surfaces C. Refraction from different surfaces D. Scattering
6	A polarizer is used to	A. Reduced intensity of light B. Produce polarized light C. Increase intensity of light D. Produce unpolarised light
7	Which one of the following waves cannot be polarized	A. Radio waves B. X-rays C. Transverse waves in a string D. Longitudinal waves in a gas
8	For which color of light the refractive index of glass is larger	A. Red B. Green C. Blue D. Violet
9	Multimode step index fibre has diameter as	A. 40 μm B. 50 μm C. 60 μm D. None of these
10	Conventionally, all the distances p, q, f, are measured from ______ of the lens	A. Focus B. Optical center C. Edges D. Centre of curvature

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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

If the thickness of the film and angle of incidence are such that two reflected waves cancel each other the film will look

At the point of contact of the lens and the glass plate, the Newton's ring is

The wave length of x-rays is of the order of

If the wavelength of light used in Michelsion's interferometer is 400 nm and the moveable mirror only moved throughλ/4, then the length moved will be

The normal human eye can focus a sharp image of an object located anywhere form infinity to a certain point called

Measurement of a standard metre in terms of the wavelength of red cadmium light is

Who devise the experimental arrangement in 1801 for studying interference effects of light

When a light signal travels along the length of the optical fibre, the power lost by it is due to

How many types of the optical fibres are

The distance between different interference fringes are:

Confining the light vibrations in one plane is called:

When a mirror of a Michelsion's interferometor is moved a distance of 0.5 mm, 2000 fringes are observed, the wavelength of the light used is

If Young s double slit experiment is immersed in water then the fringes with

In case of constructive interference of two waves, the amplitude of the resultant wave is_____either of the waves:

A lens behaves as a converging lens in air and a diverging lens in water the refractive index of the material is

A light wave produced by oscillating charge consists of a periodic variation of

All of the following statements are correct except

An optical instrument used to see very far off objects is called

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

We can achieve polarization by

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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