The speed of light in vacuum is about...? Mcqs

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The speed of light in vacuum is about...?

(A) 300 Million meters per second
(B) 300 Million meters per hour

(C) 300 Million kilometers per second
(D) 300 Million kilometers per hour

✅ Correct Answer: 300 Million kilometers per second

Comments

Source: This question is taken from the Everyday Science

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The Velocity of light in a diamond is (whereas the refractive index of a diamond with respect to vacuum is 2.5)...?

(A) 5x10^8m/s
(B) 2.5x10^8m/s

(C) 1.2x10^10m/s
(D) 1.2x10^8m/s

✅ Correct Answer: 1.2x10^8m/s

Comments

Source: This question is taken from the Everyday Science

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The speed of light with the rise in the temperature of the medium____________...?

(A) Decrease
(B) Increase

(C) Remain the same
(D) First decrease then increase

✅ Correct Answer: Remain the same

Comments

Source: This question is taken from the Everyday Science

Latest MCQs

The speed of light is __________...?

(A) 280,000 km/s
(B) 300,000 km/s

(C) 320,000 km/s
(D) none of these

✅ Correct Answer: 300,000 km/s

Comments

Source: This question is taken from the Everyday Science

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