Physics GK Questions and Answers
17. | Einstein got noble prize for | ||
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A. Photo electric effect | |||
B. Compton effect | |||
C. Theory of relativity | |||
D. None of the above |
Answer | ||
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18. | Night vision cameras do not use | ||
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A. Infrared sensors | |||
B. Amplified light | |||
C. X ray radiation from objects | |||
D. Heat radiation from objects |
Answer | ||
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19. | Which one of the following is the weakest force? | ||
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A. Electrostatic force | |||
B. Gravitational force | |||
C. Nuclear force | |||
D. Electromagnetic force |
Answer | ||
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20. | Which of the following are the discoveries of Albert Einstein? | ||
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A. Radioactivity and photoelectric effect | |||
B. X-rays and photoelectric effect | |||
C. Radioactivity and theory of relativity | |||
D. Theory of relativity and photoelectric effect |
Answer | ||
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