A) \[30{}^\circ \]
B) \[45{}^\circ \]
C) \[60{}^\circ \]
D) The reflected ray from mirror ?2? will be parallel to the surface of mirror '3'
Correct Answer: C
Solution :
\[\angle ABP=\angle QBC={{30}^{o}}\] \[\angle BCF=\angle FCD={{30}^{o}}\] \[\therefore \] \[\angle CDR={{30}^{o}}\] \[\therefore \] Angle of incidence on mirror 3, \[\angle CDG={{60}^{o}}\] As per the laws of reflection \[\angle i=\angle r\] \[\therefore \] Angle of reflection \[\angle GDS'={{60}^{o}}\]You need to login to perform this action.
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