1.

If the speed of light is 3.0 x 108ms-1, calculate the distance covered by light in 2.00 ns.

Answer»

Distance covered = Speed×Time 

= 3.0 × 108ms-1 × 2.00 ns

= 3.0×108ms-1×2.00 ns×10-9s/1ns 

= 6.00×10-1m = 0.600m



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