TRB MODEL QUESTIONS FOR PHYSICS
| 66. |
Which one of the following is a good conductor of heat and electricity? |
| |
- A. Graphite
- B. Anthracite
- C. Granite
- D. Diamond
|
| 67. |
The principle of Dynamo was discovered by |
| |
- A. Max Planck
- B. Albert Einstein
- C. Sir Humphrey Davy
- D. Michael Faraday
|
| 68. |
Magnetism at the center of a bar magnet is |
| |
- A. zero
- B. maximum
- C. minimum
- D. minimum or maximum
|
| 69. |
A device used for measuring the depth of the sea is called |
| |
- A. manometer
- B. fathometer
- C. altimeter
- D. hydrometer
|
| 70. |
The source of Sun’s radium energy is |
| |
- A. Nuclear Fission
- B. Nuclear Fusion
- C. Cosmic radiations
- D. Magnetic traps
|
