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What is the time taken by moon light to reach earth?
Options
(a) 8 sec
(b) 10 sec
(c) 9 sec
(d) None of these
Correct Answer:
None of these
Explanation:
Distance between earth and moon = 3,84,000 km
time = (384000 × 10³) / (3 × 10⁸) = 1.28 sec
The answer is none of these
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Topics: Wave Optics
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An A.C source is rated at 220 V, 50 Hz. The time taken for voltage to change
- If the alternating current I=I₁ cosωt+I₂ sinωt, then the rms current is given by
- The electromagnetic theory of light failed to explain
- If R is the radius of earth, the height at which the weight of a body 1/4 of its weight
- Two concentric coils each of radius equal to 2π cm are placed at right angles
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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