ECAT Pre Engineering Physics Chapter 9 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 9 Physical Optics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 9 Physical Optics

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Physics ECAT Pre Engineering Chapter 9 Physical Optics

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Question # 1

Huygen's theory cannot explain

Question # 2

The locus of all the points in the same phase of vibration is called:

Question # 3

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

Question # 4

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

Question # 5

The cause of mirage observed in deserts in bright sunlight is due to

Question # 6

Wave length of that color as compared to that of violet color is:

Question # 7

To see the minor details of the object by microscope, it should have:

Question # 8

The ratio of the diameter of two convex lenses is _____-the ratio of their focal lengths:

Question # 9

Speed of light in vacuum depends upon:

Question # 10

When a source of light isat very large distance,the shape of wavefront is:

Question # 11

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

Question # 12

Which one of the following phenomenon cannot be explained on the bases of Huygen's theory

Question # 13

The size of the image is maximum when its distance from the magnifying glass is:

Question # 14

The magnifier forms a virtual image of the object at:

Question # 15

Which one of the following can act approximately as a source of monochromatic light;

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