Given that earth-sun distance is 1.5 × 108 km velocity of light 3 × 105 km s-1. The sun light reaches on earth in time

Question

Given that earth-sun distance is 1.5 × 108 km velocity of light 3 × 105 km s-1. The sun light reaches on earth in time (A) 300 s (B) 400 s (C) 500 s (D) 600 s.

Tardigrade Admin · Accepted Answer

Speed = (Distance /Times) i.e. Time = (Distance/speed) = (1.5 × 108/3 × 105) = 500 s

Q. Given that earth-sun distance is $1.5 \times 1 0^{8} km$ velocity of light $3 \times 1 0^{5} km s^{- 1}$ . The sun light reaches on earth in time

300 s

400 s

500 s

600 s.

Speed = $\frac{D i s t an ce}{T im es}$
i.e. Time = $\frac{D i s t an ce}{s p ee d} = \frac{1.5 \times 1 0 ^{8}}{3 \times 1 0 ^{5}}$ = 500 s

Q. Given that earth-sun distance is 1.5×108km velocity of light 3×105kms−1. The sun light reaches on earth in time