
Basic Science : Electromagnetic Waves QUESTIONS AND ANSWERS :: part1 : 11 to 15
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
11.On rotating the analyzer, if the rays coming out of it has the intensity varies from maximum to minimum, then the incident light is |
un-polarized |
plane polarized |
partially polarized |
polarized |
12.Double diffraction phenomenon was first observed by |
Newton |
Fresnel |
Bartholinus |
Brewster |
13.A device used to get plane polarized light is |
grating |
spectrometer |
polarizer |
pyroheliometer |
14.Plane of polarization is the plane |
containing the optic axis |
in which vibration of particles takes place |
perpendicular to the plane of vibration containing the direction of propagation of polarized light |
parallel to the plane of vibration |
15.Along the direction of the optic axis of a calcite crystal, the ordinary rays travel with |
the same velocity as that of the extraordinary rays |
half the velocity of the extraordinary rays |
two times the velocity of the extraordinary rays |
√2 times the velocity of the extraordinary rays |
More Electromagnetic Waves QUESTIONS AND ANSWERS available in next pages
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