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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