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