Physics Easy fpsc ppsc nts

What is the speed of light in a vacuum?

Q: What is the speed of light in a vacuum?

Correct Answer: 3 x 10 to the power 8 m/s. The speed of light in a vacuum is approximately 3 x 10 to the power of 8 metres per second or 300000 kilometres per second and is denoted by the letter c.

A 3 x 10 to the power 6 m/s
B 3 x 10 to the power 10 m/s
C 3 x 10 to the power 4 m/s
D 3 x 10 to the power 8 m/s

Correct Answer: Option D — 3 x 10 to the power 8 m/s

Explanation:

The speed of light in a vacuum is approximately 3 x 10 to the power of 8 metres per second or 300000 kilometres per second and is denoted by...

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Subject	Physics
Difficulty	Easy
Exam Types	fpsc, ppsc, nts
Correct	Option D

What is the speed of light in a vacuum?

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