Question

Ques-11 Give the earth -sun distance as 1.5 x 10°km/s. The sunlight reaches on earth in time

(a) 0.3 sec
(b) 0.4 sec
(c) 0,5 sec
(d) 0.6 sec​

Answer 1

Time = DISTANCE/VELOCITY

=> Time = (1.5 × 10⁹)/(3 × 10⁸)

=> Time = 0.5 × 10

=> Time = 5 sec.

Time taken is 5 sec