A) 250\[\overset{o}{\mathop{\text{A}}}\,\]
B) 25\[\overset{o}{\mathop{\text{A}}}\,\]
C) 2.5\[\overset{o}{\mathop{\text{A}}}\,\]
D) zero
Correct Answer: B
Solution :
\[\frac{\lambda '}{\lambda }=1-\frac{v}{c}\] \[\Rightarrow \] \[\lambda '=\left( 1-\frac{v}{c} \right)\lambda \] \[=\left( 1-\frac{1.5\times {{10}^{6}}}{3\times {{10}^{8}}} \right)\times 5000\] \[=4975\overset{o}{\mathop{\text{A}}}\,\] Change in wavelength\[=5000-4975=25\overset{o}{\mathop{\text{A}}}\,\]
You need to login to perform this action.
You will be redirected in
3 sec
