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10 May, 20:04

Through which of the following will a light wave travel the fastest?

A.

glass wall

B.

water

C.

outer space

D.

air

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Answers (1)
  1. 10 May, 21:04
    0
    It would be D. air because The fastest thing in the whole universe is the speed of light in a vacuum (like outer space!), clocking in at a great 2.99 x 10 8 m/s. Light travels in waves, and we call thistraveling propagation. Propagation of waves has both a speed and a direction, called the velocity.
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