Q1
Define speed of light.
Speed of light is defined as the speed with which a light photon travels in a vacuum.
Q2
How is speed of light measured?
The speed of light is measured by using SI unit m/s.
Q3
Is value of velocity of light constant?
Yes, the value of velocity of light is constant.
Q4
What is the velocity of the light in the vacuum?
Velocity of the light in the vacuum is = 299792458 m/s ≅ 3 × 108 m/s
Q5
What is the speed of light in air?
The speed of light in air is 299792 km/s.
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