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 The centre of Newton's fringe is dark due to.
  • A. Destructive interference
  • B. Diffraction
  • C. Constructive interference
  • D. Polarization
2 Huygen's proposed, light energy travels in space from source in
  • A. 1578
  • B. 1678
  • C. 1778
  • D. 1868
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 The centre of Newton's rings will be
  • A. Dark
  • B. Bright
  • C. Coloured
  • D. Not visible
5 The fringe spacing in a double slit experiment can be increased by decreasing.
  • A. Wavelength of light
  • B. Width of slits
  • C. Slit separation
  • D. Distance between the slits and the screen
6 An oil film on water surface shows colour due to.
  • A. Diffraction
  • B. Interference
  • C. Polarization
  • D. Dispersion
7 Newton's rings are formed due to phenomenon of.
  • A. Interference
  • B. Dispersion
  • C. Diffraction
  • D. Polarization
8 Standard metal according to Michelson's interferometer is equivalent to
  • A. 1553163.5 wave meter
  • B. 3 x 108meter
  • C. 15503000 meter
  • D. None of these
9 The Bragg's equation is given by
  • A.
  • B.
  • C.
  • D.
10 According to Huygen's principle the points on primary wave front can be considered as
  • A. Secondary wavelets
  • B. Ray of light
  • C. Source of light
  • D. None of these

Top Scorers of Physics Fsc Part 1 Chapter 9 Online Test

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Kosem Sultan

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Zaheer Baber

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52 Sec
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Zainab Zahid

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Abiha Arooj

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58 Sec
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  • Z

    Zainab Nawaz

    08 Apr 2018

    great !!!!

    Like (5)
    Reply
  • F

    Fatima

    01 Dec 2017

    Idk

    Like (3)
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    ALI HAMZA

    27 May 2017

    good job

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