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If length unit becomes doubled and time ...

If length unit becomes doubled and time becomes halved then, find the factor by which the value of speed of light decrease in new system compared to old system.

Text Solution

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The correct Answer is:
4
Velocity of light, `c=[LT^(-1)]`
`:. N_(2)=n_(1) [L_(1)/L_(2)][T_(1)/T_(2)]^(-1)=[L/(2L)][T/(T//2)]^(-1) =1/4`
This, the velocity of light would decrease by a factor of 4.
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