Twinkling of stars is caused by?
Correct answer C. refraction of light
Tip: press A, B, C or D to answer, and N for the next question.
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More Physics questions
See allIn a fission nuclear reaction, a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called?
Correct answer D. Fusion nuclear reaction
The principle used in radar is the same as that of Sonar. In radar we use radio waves ; whereas in sonar we use?
Correct answer C. Ultrasonic
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A six feet tall lady wants to see her full image in a plane mirror . The minimum length of the mirror will be?
Correct answer D. 3 feet
When a ray of sunlight enters a dark room, its straight path become visible because of dust particles hanging in the air. It is because light is?
Correct answer A. Visible
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