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

Online MCQ`s Test For Chapter 9 "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

Laws of reflection and refraction can also be explained by:

Particle nature of light A
Quantum nature of light B
Wave nature of light C
Complex nature of light D

Question # 2

The ratio of the size of the image to that of object is called:

Focal length A
Aperture B
Linear magnification C
Principal axis D

Question # 3

To observe interference of light, the condition, which must be met with is that the sources must be:

Monochromatic A
Phase coherent B
Both of above C
None of above D

Question # 4

Angle between the ray of light and the corresponding wavefront is:

0° A
60° B
90° C
120° D

Question # 5

Conventionally, all the distance p, q, f are measured from _____ of the lens:

Focus A
Optical center B
Edges C
None of these D

Question # 6

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:

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

Question # 7

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 # 8

Which one the following gives three regions of electromagnetic spectrum in order of increasing wavelength?

Gamma rays, micro waves, visible light A
Radio waves, ultraviolet waves, X-rays B
Ultraviolet rays, infrared rays, micro waves C
Visible light, gamma rays, radio waves D

Question # 9

The superposition of the two waves of same frequency and amplitude travelling in the same direction gives to an effect called

Diffraction A
Interference B
Polarization C
Dispersion D

Question # 10

Resolving power in mth order diffraction for grating is given by:

R = N x m A
None of these B
R = m/N C
R = N/m D

Question # 11

If the object is placed at 12 cm distance from a convex lens of focal length 6 cm, then we get an image of ____ as that of object:

Double the size A
Same size B
Half the size C
None of these D

Question # 12

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 # 13

The property of light which does not change with the nature of the medium is:

Frequency A
Amplitude B
Wavelength C
None of these D

Question # 14

If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity

Fringe width will decrease A
Fringe width will increase B
Fringe width will remain unchanged C
Fringe will become less intense D

Question # 15

If the object is situated at focus of a convex lens, then its image is formed at:

F A
2F B
Infinity C
None of these 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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Online MCQ`s Test For Chapter 9 "ECAT Pre General Science Physics Chapter 9 Physical Optics Online Test"

ECAT Pre General Science Physics Chapter 9 Physical Optics Online Test

Laws of reflection and refraction can also be explained by:

The ratio of the size of the image to that of object is called:

To observe interference of light, the condition, which must be met with is that the sources must be:

Angle between the ray of light and the corresponding wavefront is:

Conventionally, all the distance p, q, f are measured from _____ of the lens:

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:

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

Which one the following gives three regions of electromagnetic spectrum in order of increasing wavelength?

The superposition of the two waves of same frequency and amplitude travelling in the same direction gives to an effect called

Resolving power in mth order diffraction for grating is given by:

If the object is placed at 12 cm distance from a convex lens of focal length 6 cm, then we get an image of ____ as that of object:

The magnifier forms a virtual image of the object at:

The property of light which does not change with the nature of the medium is:

If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity

If the object is situated at focus of a convex lens, then its image is formed at:

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

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ECAT Pre General Science Physics Chapter 9 Test

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