Basic Science : Electromagnetic Waves QUESTIONS AND ANSWERS :: part1 : 16 to 20
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
16.The angle of inclination of pile of plates to the axis of the tube is |
| 72.5° |
| 32.5° |
| 57.5° |
| 90° |
17.The phenomenon used in the construction of pie of plates is |
| interference of light |
| diffraction of light |
| refraction of light |
| polarization by reflection |
18.A mixture of plane polarized light and un-polarized light is known as |
| plane polarized light |
| partially polarized light |
| un-polarized light |
| polarized light |
19.In polarization, the plane of vibration is the plane |
| parallel to the vibration of particles |
| containing the optic axis in which vibrations occur |
| perpendicular to the optic axis |
| containing the direction of propagation of polarized light |
20.Sound waves cannot be polarized while light waves can be polarized because |
| sound travels slower than light |
| light waves are transverse while sound waves are longitudinal |
| light waves are longitudinal while sound waves are transverse |
| sound waves have longer wavelength than waves |
More Electromagnetic Waves QUESTIONS AND ANSWERS available in next pages
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