Speed of light wave of 5000 Å wavelength...

Speed of light wave of 5000 Å wavelength produced from a star is `1.5 xx 10^(6) m//s`, then change in wavelength when it reaches to Earth is ......

`25Å`

zero

`100Å`

`2.5Å`

Text Solution

Verified by Experts

The correct Answer is:

`Delta lambda= lambda xx(v)/(c)`
`=5000xx(1.5xx10^(6))/(3xx10^(8))=25Å`

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