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SOUVAGYA SAHA from De Nobili School, DHANBAD
Subject :IMO    Class : Class 7

The speed of light is 3 × 108 m/sec. If the Sun is 1.5 × 1011 m away from the Earth, then how many seconds does light take to reach the Earth?

A3.0 × 103
B5.0 × 102
C5.0 × 103
D3.0 × 102


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