Physics Questions and Answers
| 157. |
The angle of incidence for which the angle of refraction is 90° is called as |
| |
- A. right angle
- B. critical angle
- C. straight angle
- D. obtuse angle
|
| 158. |
Land and sea breeze are due to |
| |
- A. conduction of heat
- B. convection of heat
- C. radiation of heat
- D. conversion of heat
|
| 159. |
A rainbow is caused by |
| |
- A. diffraction
- B. dispersion
- C. total internal reflection
- D. interference
|
| 160. |
A falling drop of rain water acquires the spherical shape due to |
| |
- A. viscosity
- B. surface tension
- C. atmospheric pressure
- D. gravtitational force
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