light travels at a speed of 3X10^8m/s distsnce between earth and the sun is 1.5X10^11m find the time taken for the light to reach earth

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Solution

Dear Student !

$H e r e, S p e e d = 3 \times 10^{8} \frac{m}{s} D i s \tan c e = 1.5 \times 10^{11} m W e k n o w t h a t, S p e e d = \frac{D i s \tan c e}{T i m e} T i m e = \frac{D i s \tan c e}{S p e e d} = \frac{1.5 \times 10^{11}}{3 \times 10^{8}} = \frac{1 \times 10^{3}}{2} H e n c e, T i m e = 500 s e c o n d s$

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light travels at a speed of 3X10^8m/s distsnce between earth and the sun is 1.5X10^11m find the time taken for the light to reach earth

Dear Student ! Here, Speed = 3 × 108 msDistance = 1.5 ×1011 mWe know that,Speed = DistanceTimeTime = DistanceSpeed = 1.5 × 10113 × 108 = 1 × 1032Hence, Time = 500 seconds