Physics Fsc Part 1 Chapter 9 Online Test With Answers

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Physics Fsc Part 1 Chapter 9 Online Test

Sr. # Questions Answers Choice
1 Which is nooptically active Sugar Tartaric acid Water Sodium chloride
2 Intensity of light depend on Wave length Amplitude Velocity Frequency
3 Which one of the following can not be polarized. Ultra violet rays Radio waves T.V. Waves Sound waves
4 The distinguish between transverse and longitudinal wave_______ is used. Refraction Interference Diffraction polarization
5 The phenomenon of polarization of light reveals that sun light is Longitudinal waves Transverse wave Electromagnetic waves Monochromatic wave
6 Which phenomenon of light proves that light waves are transverse in nature. Refraction Reflection Diffraction Polarization
7 The process of confining the beam of light to vibrate in one plane is called. Interference Diffraction Polarization Total internal refraction
8 Sound waves can not be Reflected Refracted Polarized Diffracted
9 X-ray diffraction has been very useful in determining the structure of Hemoglobin Stars Galaxies Stones
10 The wavelength of X-rays is of the order of. 10<sup>-8</sup> m 10<sup>-10</sup>m 10<sup>-5</sup>m 10<sup>-4</sup>m
11 If 'N' is number of lines rule don the grating having length 'L' then grating element 'd' is given by. N/L 2N/L L/N N/2L
12 A typical diffraction grating has certain number of lines per centimeter whose range is. 40 to 50 400 to 5000 400 to 500 4000 to 5000
13 Bending of light around the edges of an obstacle is called. Refraction Polarization Interference Diffraction
14 Michelson's interferometer can be used ot find the Velocity of light Wavelength of light Velocity of sound Wavelength of sound
15 When one mirror of a Michelson interferometer is moved a distance of 0.5 mm, 2000 fringes and observed, The wavelength of light used is. 5000 m 50000 A<sup>o</sup> 500 cm 2000 A<sup>o</sup>
16 When newton ring are seen through the transmitted light, then central spot is. Dark Blue Bright Red
17 Newton's rings are formed due to phenomenon of. Interference Dispersion Diffraction Polarization
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