The light from many stars can be seen from earth. but there is a time delay between the time the light is emitted from the star and when we see it here on earth. which of the following statements best explains why there is a delay?

a. the stars light is not bright enough to reach earth immediately

b. stars twinkle so they give off light at regular intervals.

c. Earths atmoshpere is to thick for light to reach the surface as soon as it is

emitted

d. stars are light-years away from earth, so light takes time to reach our planet

Question

Sandra Villarreal

Physics

17 July, 03:42

The light from many stars can be seen from earth. but there is a time delay between the time the light is emitted from the star and when we see it here on earth. which of the following statements best explains why there is a delay?

a. the stars light is not bright enough to reach earth immediately

b. stars twinkle so they give off light at regular intervals.

c. Earths atmoshpere is to thick for light to reach the surface as soon as it is

emitted

d. stars are light-years away from earth, so light takes time to reach our planet

+5

Answers (1)

Know the Answer?

Kathleen Barber · Answer 1

Stars are located at a distance which are measured in terms of light years. Light year is an Astronomical unit used to measure distance between distant Celestial bodies.

1 light year = 9460730472580 800 metres

But no star is located at a distance of 1 light year. Some stars are located at millions of light years and light travels ~ 3 x 10 ⁸ m/s. Thus light takes time to reach our atmosphere.