A) \[40{}^\circ \]
B) \[60{}^\circ \]
C) \[20{}^\circ \]
D) \[30{}^\circ \]
Correct Answer: D
Solution :
We see from the figure the ray incident on the second mirror\[{{M}_{2}}\]retraces its path (way). This would result the incident ray becomes normally on the second mirrors. Hence the angle between mirros \[{{M}_{1}}\] and \[{{M}_{2}}\]is \[\angle {{M}_{1}}A{{M}_{2}}=30{}^\circ .\]You need to login to perform this action.
You will be redirected in
3 sec