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AIIMS 2019 Physics Optics Revision Quiz 2

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Question 1

If the intensities of the two interfering beams in Young’s double-slit experiment are and then the contrast between the maximum and minimum intensities are good when

Question 2

Diffraction pattern of a single slit consists of a central bright band which is

Question 3

In short wave communication, waves of which of following frequencies will be reflected back by the ionospheric layer having electron density 1011 per m3?

Question 4

What changes occur, if the monochromatic light used in Young’s double slit experiment is replaced by white light?

Question 5

A astronomical telescope has objective and eyepiece of focal lengths 40 cm 4 cm respectively. To view an object 200 cm away from the objective, the lenses must be separated by a distance

Question 6

The tip of a needle does not give a sharp image on a screen. This is due to

Question 7

In Young's double slit experiment with sodium vapor lamp of wavelength 589 nm and the slits 0.589 mm apart, the half angular width of the central maximum is

Question 8

The interference pattern is obtained with two coherent light sources of intensity ratio n. In the interference pattern, the ratio will be
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