1.

If velocityof a galaxy relative to earth is 1.2 xx 10^(6) ms^(-1) then % increase in wavellenth of light from galaxy as compared to the similar source on earth will be :

Answer»

`0.3%`
`0.4%`
`0.5%`
`0.6%`

Solution :`(V)/(c) = (DELTA lambda)/(lambda)`
`THEREFORE Delta = (v)/(c) lambda`
`therefore (Delta lambda)/(lambda) = (v)/(c) = 4 xx 10^(-3)`
or `(Deltalambda)/(lambda) xx 100 = 0.4 = 0.4 %`.


Discussion

No Comment Found

Related InterviewSolutions