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A rocket is going away from the earth a...

A rocket is going away from the earth at a speed of `10^(6)` m/s . If the wavelength of the light wave emitted by a light source on it is `5400 Å`, what will be its Doppler Shift ?

A

a. `1.8Å`

B

b. `18Å`

C

c.`25Å`

D

d. `14Å`

Text Solution

Verified by Experts

The correct Answer is:
B
Doppler Shift `Delta lambda=((v)/(c)) lambda `
`=(10^(6) xx 5400 xx 10^(-10))/(3 xx 10^(8))`
`:. Delta lambda= 18 xx 10^(-10) m=18Å`
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