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SSC Scientific Assistant: Physics Quiz 1

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Question 1

Which one of the following has the longest wavelength?

Question 2

Given that,
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where y and x are measured in meters. Which of the following statement is true?

Question 3

In Young's double slit experiment, the angular width of a fringe formed on a distant screen is 0.1. The wavelength of light used is 6000 A. What is the spacing between the slits?

Question 4

A water film in air is 3200 A thick. If it is illuminated with white light at near normal incidence, what colour will it appear to be refracted light (Refractive index of water = 4/3)

Question 5

A clock hung on a wall has marks instead of numbers on its dial. On opposite wall there is a mirror and the image of the clock in the mirror when read gives time as 3.25. Then the time on the clock is

Question 6

When radiation of wavelength 3000 Å is incident on a photosensitive surface, the stopping potential for emitted photo-electrons is 2.5 V. The stopping potential for radiation of wavelength 1500 Å will be

Question 7

According to Bohr's theory, the ratio of the times taken by the electron in a hydrogen atom to complete one revolution in orbits corresponding to ground and first excited states is

Question 8

For the same peak value which of the following wave will have the highest r.m.s. value?

Question 9

Compton effect is associated with

Question 10

In Rutherford Scattering experiment, the correct angle of scattering of alpha particles for impact parameter equal to zero is

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ESE & GATE EC General

Jun 8ESE & GATE EC