Question

Light travels at the speed of approximately 3.0 × 108 meters per second. Find the time in minutes required for light to travel from the sun to Earth (an approximate distance of 1.5 × 1011 meters).

Answer 1

Answer:

  t = 8.33 minutes

Explanation:

given,

Speed of Light, v = 3 x 10⁸ m/s

distance between sun to Earth = 1.5 x 10¹¹ m

time taken to reach earth = ?

we know,

Distance = speed x time

$t = \dfrac{d}{s}$

$t = \dfrac{1.5\times 10^{11}}{3\times 10^8}$

      t = 500 s

1 min = 60 s

now, $t = \dfrac{500}{60}\ minutes$

          t = 8.33 minutes

time taken by the light to reach earth is equal to 8.33 minutes.