|
Page-14 |
|||
Physical Science |
|||
| 191)Who had invented wireless telegraph? | |||
| Alfred Noble | Waterman | ||
| J L Baird | Marconi | ||
| Answer : | |||
| |
|||
| 192)Who discovered heavy hydogen? | |||
| L C Urey | Frank Whitt | ||
| Lister | J J Thomson | ||
| Answer : | |||
| |
|||
| 193)Who discovered cosmic ray? | |||
| James Watt | Milikan | ||
| Brequet | Cavendish | ||
| Answer : | |||
| |
|||
| 194)Photometer is used for the determination of | |||
| Electric potential | Altitude | ||
| Specufic gravity | Intensity of illumination | ||
| Answer : | |||
| |
|||
| 195)Quantum Theory was discovered by | |||
| J Priestly | W K Roentgoen | ||
| Max Plank | Marconi | ||
| Answer : | |||
| |
|||
| 196)What do yo associate with Fermi? | |||
| Wirless Telegraph | Atom Bomb | ||
| Raman effect | South pole | ||
| Answer : | |||
| |
|||
| 197)The coil of an electric heater is made of | |||
| Brass | Copper | ||
| Iron | Nichrome | ||
| Answer : | |||
| |
|||
| |
|||
| 198)Which one of the following is the purest form of water? | |||
| Rain water | Surface water | ||
| Well water | Tubewell water | ||
| Answer : | |||
| |
|||
| 199)Hydrogen is an important constituent of | |||
| Water | Petroleum | ||
| Natural gas | all of these | ||
| Answer : | |||
| |
|||
| 200)Who discovered that the earth moves round the sun? | |||
| Newton | Galileo | ||
| Copernicus | Aristotle | ||
| Answer : | |||
| |
|||
| 201)Electron volt is unit of - | |||
| Charge | Energy | ||
| Potential | None of these | ||
| Answer : | |||
| |
|||
| 202)How does a yellow flower look in red light? | |||
| Black | Red | ||
| Yellow | Blue | ||
| Answer : | |||
| |
|||
| 203)How does a Yellow flower look in blue light? | |||
| Black | Blue | ||
| Red | White | ||
| Answer : | |||
| |
|||
| 204)Law of Electrolysis was discovered by | |||
| Snell | Dalton | ||
| Rutherford | Faraday | ||
| Answer : | |||
| |
|||
| 205)The most abundant element in earth's crust is | |||
| Hydrogen | Nitrogen | ||
| Oxygen | None of these | ||
| Answer : | |||
| |
|||
 |
||