Question

One light year is approximately equal to
A) 10^12 mts B) 10^16 mts C) 10^11 mts D) 10^13 mts

Answer 1

Answer:

Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More precisely, one light-year is equal to 9,500,000,000,000 kilometers. Approximately, 1 light year = 10^16 mts.

The answer is option b) 10^16 mts

Answer 2

Explanation:

1 light year

$= 9.46 \times {10}^{15}$m

So 10^16 can be approximately considered as the correct answer.

Thank you!!!