Question

"The distance of a star from the earth is 8-33 light
minutes. What do you mean by this statement ?
Express the distance in metre. Ans. 1.5 x 10" m​

Answer 1

Answer:

1.5 × 10^11 m

Explanation:

light minutes : the distance travelled by the light in the duration of one minute.( see : light year)

now c = d/t

c = speed of light (3×10^8m/s)

d = distance

t = one minute (60")

d = c × t

d = 3×10^8× 60

d = 1.8 × 10^10 m

now star distance :

8.33 × 1.8 × 10^10

= 14.994 × 10^10

star distance= 1.5 × 10^11 m