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9th Chapter

11th Class Physics Chapter 9 Test

Here you can prepare 11th Class Physics Chapter 9 Physical Optics Test. Click the button for 100% free full practice test.

First Year Physics Chapter 9 Online MCQ Test for 1st Year Physics Chapter 9 (Physical Optics)

This online test contains MCQs about following topics:

- Wave Fronts - Huygen's principle - Interferance of Light Waves - Young's Double slit Experiment - Interference in Thin Films - Newton's Rings - Michelson's Interferometer - Diffraction of Light - Diffraction due to a Narrow slit - Diffraction Grating - Diffraction of X-Rays by Crystals - Polarization

ICS Part 1 Physics Ch 9 Test
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First Year Physics Chapter 9 Online MCQ Test for 1st Year Physics Chapter 9 (Physical Optics)

Sr. # Questions Answers Choice
1 The distinguish between transverse and longitudinal wave_______ is used.
  • A. Refraction
  • B. Interference
  • C. Diffraction
  • D. polarization
2 Dark fringes are also called as
  • A. Minima
  • B. Maxima
  • C. Wave front
  • D. Ray of light
3 The wavelength of X-rays is of the order of.
  • A. 10<sup>-8</sup> m
  • B. 10<sup>-10</sup>m
  • C. 10<sup>-5</sup>m
  • D. 10<sup>-4</sup>m
4 Fringe spacing is inversely proportional to.
  • A. Wave length
  • B. Slit separation
  • C. Distance between the slit and screen
  • D. Frequency of light
5 Oil film floating on water exhibits colours due to
  • A. Interference
  • B. Diffraction
  • C. Polarization
  • D. All of these
6 In case of point source the shape of wave front is.
  • A. Plane
  • B. spherical
  • C. Circular
  • D. Eliptical
7 According to Hygen's principle, each point on a wave front acts as a source of.
  • A. Secondary wavelet
  • B. New wave front
  • C. Sound
  • D. Primary wavelet
8 Light waves emitted from a source spread in
  • A. Specific direction
  • B. All direction
  • C. Upward direction
  • D. None of these
9 Bending of light around the edges of an obstacle is called.
  • A. Refraction
  • B. Polarization
  • C. Interference
  • D. Diffraction
10 The distance between two consecutive wave front is equal to
  • A. One wave length
  • B. Two wave length
  • C. Half wave length
  • D. Three wave length

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