The speed of light in a vacuum isGroup of answer choices768 km per hour300,000 km per second186,000 miles per hour.343 meters per secondnot given.

The speed of light is about 3.00 × 108 m/s. Convert this figure to miles per hour.

he speed of light in a vacuum can be reported as  ____________________ in a second.

The time taken by a light ray to travel a distance of 3 cm in vacuum is [Take speed of light in vacuum as 3 × 108 m/s]  Only one correct answerA.10–8 sB.108 sC.10–10 sD.1010 s

Velocity of light in vacuum is 3 × 108 m/s and the refractive index of glass is 1.5. The time taken by light in travelling 3 km in glass will be1.5 × 10-5 s1.5 × 10-6 s1.5 × 10-7 s1.5 × 10-4 s

speed of light