A) \[{{\lambda }_{2}}/{{\lambda }_{1}}\]
B) \[{{\lambda }_{1}}/{{\lambda }_{2}}\]
C) \[\lambda _{2}^{2}/\lambda _{1}^{2}\]
D) \[\lambda _{1}^{2}/\lambda _{2}^{2}\]
Correct Answer: B
Solution :
The distance from the centre for\[{{7}^{th}}\]maximum with wavelength\[{{\lambda }_{1}},\] \[{{d}_{1}}=6(D{{\lambda }_{1}}/d)\] Similarly, that for wavelength\[{{\lambda }_{2}},\] \[{{d}_{2}}=6(D{{\lambda }_{2}}/d)\] \[\therefore \] \[\frac{{{d}_{1}}}{{{d}_{2}}}=\frac{{{\lambda }_{1}}}{{{\lambda }_{2}}}\]You need to login to perform this action.
You will be redirected in
3 sec