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3 years ago

15

4.5 billion km, the average separation between the sun and Neptune (report answer in hours). How long does it take light to trav

el each of the following distances?

1 answer:

Liula [17]3 years ago

4 0

Answer:

t = 4.17 hours

Explanation:

given,

The distance between Sun and Neptune, d = 4.5 billion Km

= 4.5 x 10⁹ Km

= 4.5 x 10¹¹ m

The velocity of light, c = 3 x 10⁸ m/s

The velocity is always equal to displacement by the time.

<em>V = d / t m/s</em>

∴ t = d / V

= 4.5 x 10¹¹ m / 3 x 10⁸ m/s

= 15,000 s

= 4.17 h

Hence, the time taken by the light rays to reach the Neptune is, t = 4.17 h

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