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Two plane mirrors are inclined to each other such that a ray of light incident on first mirror and parallel to second is reflected from the second mirror parallel to first mirror.The angle between two mirrors is??

Asked by Umesh 25th October 2017, 4:34 PM
Answered by Expert
Answer:
 
 
Angle M1CB = Angle  M1DM2  (corresponding angles)
Angle  BAM2 = Angle  CDM2  (corresponding angles)
Angle BCN1= angle ACN1 and angle BAN2= angle CAN2 (law of reflections)
Therefore, angle M1CB = angle DCA and angle BAM2 = angle CAD
 
 
therefore, angle DCA= angle CAD= angle ADC 
3θ=180
θ=60
Answered by Expert 5th December 2017, 7:18 PM
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