Q74 / 270 · NDA 2017 (Phase 2) · General Ability

How long does light take to reach the Earth from the sun?

A
About 4 minutes
Correct answer
B
About 8 minutes
C
About 24 minutes
D
About 24 hours

Solution

Sunlight travels at the speed of light. Photons emitted from the surface of the Sun need to travel across the vacuum of space to reach our eyes. The short answer is that it takes sunlight an average of 8 minutes and 20 seconds to travel from the Sun to the Earth.

Hence, the correct answer is option: 'B'.

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