TRB Physics Questions and Answers
| 1. |
Which of the following are primary colours? |
| |
- A. Red, Green and Blue
- B. Red, Cyan and Blue
- C. Violet, Red and Green
- D. Blue, Cyan and Magenta
|
| 2. |
Kepler’s first law of planetary motion is also called |
| |
- A. Law of periods
- B. Law of areas
- C. Law of orbits
- D. Law of distances
|
| 3. |
The boiling point of water inside the pressure cooker is |
| |
- A. 100°C
- B. 0°C
- C. 120°C
- D. -120°C
|
| 4. |
The volatile liquid used in refrigerator is |
| |
- A. Freon
- B. Water
- C. Helium
- D. Acetone
|
