- A toothed wheel has 360 teeth and rotates at a speed of 27.5 rev/s. A...

Question

Question

Answer 1

Answer #1

speed of light = distance covered /time taken

= [2 L] /(number of rotations/f)

= [2*7500]/((0.5/360)/27.5) as it moves only half tooth as it is blocked

= 2.97*10^8 m/s answer

Answer 2

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