| 181. | In the state of weightlessness, the shape of a candle flame will be |
A. Longer | |
B. More little | |
C. Round shape | |
D. Will remain the same |
| 182. | A liquid rises to a higher height than water in a capillary tube because of |
A. More viscous than liquid water | |
B. The temperature of the liquid is higher than that of water | |
C. The surface tension of the liquid is less than that of water | |
D. The surface tension of liquid is higher than that of water |
| 183. | Capillarity is not the only reason for which one of the following |
A. Ink absorption | |
B. Rise of underground water | |
C. Spread of water drop on cotton cloth | |
D. Movement of water from a plant’s roots to its foliage |
| 184. | Who propounded the universal law of gravitation? |
A. Newton | |
B. Galileo | |
C. Copernicus | |
D. Einstein |
| 185. | Energy conservation means that- |
A. Energy is created and destroyed | |
B. Energy can be created not destroyed | |
C. Energy cannot be created but can be destroyed | |
D. Energy can neither be created nor destroyed |
| 186. | The escape velocity of the earth is- |
A. 15 km/s | |
B. 21.1 km/s | |
C. 7.0 km/s | |
D. 11.2 km/sec |
| 187. | pascal is the unit |
A. Of humidity | |
B. Of pressure | |
C. Of rain | |
D. Of temperature |
| 188. | 1 kg/cm² pressure is equivalent to |
A. 0.1 bar | |
B. 1.0 times | |
C. 10.0 times | |
D. 100.0 bar |
| 189. | what is cusec measured in |
A. Purity of water | |
B. Depth of water | |
C. Flow of water | |
D. Amount of water |
| 190. | weight of a body |
A. Is the same everywhere on the earth | |
B. Highest at the poles | |
C. More at the equator | |
D. Higher in the mountains than in the plains |