PPSC Physics Chapter 5 Waves and Wave Properties of Light With Answers

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PPSC Physics Chapter 5 Waves and Wave Properties of Light

Sr. # Questions Answers Choice
1 Electromagnetic waves transmit. Energy only Momentum only Energy and momentum Light
2 A application of the phenomenon of polarization is in The scattering of light beams Explaining the blue colour of sky Identifying chemicals elements Analysis of mechanical stress
3 The polarization of an electromagnetic wave is determined by The magnetic field The electric field The electric and magnetic fields The field direction of propagation of electromagnetic waves
4 The phenomenon of interference occurs because waves obey Laws of reflection Principle of super position Laws of motion Inverse square law of intensities
5 Diffraction is a special type of. Polarization Interference Dispersion Scattering
6 Two light waves which are not coherent cannot produce. Interference Diffraction Reflection Dispersion
7 Which one of the following cannot be polarized. Radiowave Ultraviolet rays X- rays Sound waves
8 Light of passing through a polaroid is Plane polarized Unpolarized Circularly polarized Elliptically polarized
9 Polarization of light shows that light is. Corpuscular in nature Of extremely short waves Longitudinal waves Transverse waves
10 We get light inside a room in a day time due to Interferences Polarization Diffraction Refraction
11 Michelson's interferometer can b e sued to find Velocity of light Velocity of sound Wavelength of light Wavelength of sound
12 Newton's rings are formed due to Diffraction of light Interference of light Polarization of light Reflection of light
13 Blue colour of sky is due to. Diffraction Reflection Polarization Scattering
14 Fringe spacing in double slit experiment can be increased by decreasing. Wavelength of light Width of slits Slite separation Distance between the slits and screen
15 The appearance of colures in their film is due to Diffraction Dispersion Interference Polarization
16 A thin layer of oil the surface of water looks coloured due to. Pillarization of light Different elements present in the oil Interference of light Transmission of light
17 Soap film in sunlight appears coloured due to Dispersion of light Diffraction of light Scattering of light Interference of light
18 Interference fringe spacing depends on The wavelength of light used The distance screen from the coherent sources Separation between the sources All of the above
19 The distance between any two consecutive bright or dark fringes is called. Wavelength Amplitude Fringe spacing Wavelet
20 Which of the following is nearly monochromatic light. Light from fluorescent tube Light from neon lamp Light from sodium lamp Light from simple lamp
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