Question

Imagine you are an astronomer studying the Sun, and you are looking at the Sun through a telescope -- with a strong filter to protect your eyes of course. While you are gazing at the Sun, you see a "flare" on the SURFACE of the Sun -- a small but violent eruption that simultaneously emits a lot of light at ALL wavelengths, from radio waves to gamma rays. How long after you see the flare until the Earth is bathed in the dangerous x-rays and gamma rays from this flare? Group of answer choices

Answer 1

Answer:

$4.98\times10^{2} s$

Explanation:

Light has an speed of

$v= 3\times10^{5} km/s$

The distance from Sun to Earth

$D=1au =1.496\times10^{8}  km$

The time light , gamma, and X rays take to reach earth is the same, and it is calculated :

$t=\frac{D}{v} =\frac{1.496\times10^{8}}{ 3\times10^{5} } =4.98\times10^{2}$s

About 8.3 mins

Hope my answer helps

Have a nice day!