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Question

Figure shows an incident ray AO and the normal ON on a plane mirror . The angle which the incident ray AO makes with the mirror is $$ 30^{\circ} $$.Find the angle of incidence.
1807061_885ffa2b323b442493f5510b8247de95.png


Solution

The angle of incidence is an angle between the incident ray and the normal.So the angle of incidence = $$ 90^{\circ} - 30^{\circ} = 60^{\circ} $$ 

Physics
NCERT
Standard XII

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