ECAT Pre General Science Chapter 9 online mcq test with answers for Physics chapter 9 (Physical Optics)

MCQ's Test For ECAT Pre General Science Physics Chapter 9 Physical Optics Online Test

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 9 Physical Optics Online Test

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ECAT Pre General Science Physics Chapter 9 Physical Optics Online Test

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Question # 1

Huygen principle is used to determine:

Speed of light A
Location of wavefront B
About polarized or unpolarized light C
None of them D

Question # 2

If the focal length of the convex lens is 5 cm, then to get the real and inverted image of the same size as that of object, the object should be placed at:

15 cm A
10 cm B
20 cm C
5 cm D

Question # 3

The velocity of light in vacuum can be changed by changing

Frequency A
Amplitude B
Wavelength C
None of these D

Question # 4

A prism splits a beam of white light into seven component colors. This is so because

Phase of different colors is different A
Amplitude of different colors is different B
Wavelength of different colors is different C
Velocity of different colors is different D

Question # 5

Monochromatic light means waves of:

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

Question # 6

The image of the tip of a needle is never sharp because of

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

Question # 7

The magnifier forms a virtual image of the object at:

None of these A
Least distance of distinct vision B
Much farther than the least distance C
Both A and B are correct D

Question # 8

Speed of light in vacuum depends upon:

Frequency A
Wavelength B
Amplitude C
None of these D

Question # 9

Stars twinkle due to

The fact that they do not emit light continuously A
The refractive index of earth's atmosphere fluctuates B
The Star's atmosphere absorbs its light intermittently C
None of these D

Question # 10

In an interference pattern of Young's double slit(YDS) experiment:

Bright fringesare wider than dark fringes A
Dark fringes are wider than bright fringes B
Both dark and bright fringes are of equal width C
Central fringes are wider than the outer fringes
D

Question # 11

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

Equal A
Smaller B
Greater C
None of these D

Question # 12

If the object and its image are located at a distance of 5 cm from the focus of a convex lens, the focus length of the lens will be:

5 cm A
10 cm B
20 cm C
25 cm D

Question # 13

The magnifier forms a virtual image of the object at:

None of these A
Both A and B are correct B
Much farther than the least distance C
Least distance of distinct vision D

Question # 14

The distance from eye to near point is taken as:

10 cm A
15 cm B
20 cm C
25 cm D

Question # 15

A line which represents the direction of travel of a wave is known as:

Spherical Wavefront A
Locus B
Ray C
Either B or C D

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ECAT Pre General Science Physics Chapter 9 MCQ Test With Answer for Physics chapter 9 (Physical Optics)

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MCQ's Test For ECAT Pre General Science Physics Chapter 9 Physical Optics Online Test

ECAT Pre General Science Physics Chapter 9 Physical Optics Online Test

Huygen principle is used to determine:

If the focal length of the convex lens is 5 cm, then to get the real and inverted image of the same size as that of object, the object should be placed at:

The velocity of light in vacuum can be changed by changing

A prism splits a beam of white light into seven component colors. This is so because

Monochromatic light means waves of:

The image of the tip of a needle is never sharp because of

The magnifier forms a virtual image of the object at:

Speed of light in vacuum depends upon:

Stars twinkle due to

In an interference pattern of Young's double slit(YDS) experiment:

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

If the object and its image are located at a distance of 5 cm from the focus of a convex lens, the focus length of the lens will be:

The magnifier forms a virtual image of the object at:

The distance from eye to near point is taken as:

A line which represents the direction of travel of a wave is known as:

Prepare Complete Set Wise ECAT Pre General Science Physics Chapter 9 Physical Optics Online Test MCQs Online With Answers

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

ECAT Pre General Science Physics Chapter 9 Test

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