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9th Chapter

11th Class Physics Chapter 9 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

FSC Part 1 Physics Ch. 9 Test

Start Physics Ch. 9 Test

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

Sr. # Questions Answers Choice
1 A ray of light shows the direction of propagation of light It is line which is.
  • A. Normal to the wave front
  • B. Parallax to the wave front
  • C. Opposite to the wave front
  • D. Equal to the wave front
2 Michelson's interferometer can be used ot find the
  • A. Velocity of light
  • B. Wavelength of light
  • C. Velocity of sound
  • D. Wavelength of sound
3 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
4 Newton's rings are formed due to phenomenon of.
  • A. Interference
  • B. Dispersion
  • C. Diffraction
  • D. Polarization
5 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
6 Which phenomenon of light proves that light waves are transverse in nature.
  • A. Refraction
  • B. Reflection
  • C. Diffraction
  • D. Polarization
7 Light entering rom air glass does not change in its.
  • A. Frequency
  • B. Wavelength
  • C. Velocity
  • D. Direction
8 Which one of the following can not be polarized.
  • A. Ultra violet rays
  • B. Radio waves
  • C. T.V. Waves
  • D. Sound waves
9 In case of point source the shape of wave front is.
  • A. Plane
  • B. spherical
  • C. Circular
  • D. Eliptical
10 Oil film floating on water exhibits colours due to
  • A. Interference
  • B. Diffraction
  • C. Polarization
  • D. All of these

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    Zainab Nawaz

    08 Apr 2018

    great !!!!

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    Fatima

    01 Dec 2017

    Idk

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    ALI HAMZA

    27 May 2017

    good job

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