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A source of light O is located at a distance of 8cm from a plane mirror. The reflected ray O ’ is detected 2 cm from the mirror at a vertical displacement of 12 cm. The point of reflection is at a distance of:

A source of light O is located at a distance of 8cm from a plane mirror. The reflected ray O’  is detected 2 cm from the mirror at a vertical displacement of 12 cm. The point of reflection is at a distance of:

Grade:8

1 Answers

Arun
25763 Points
2 years ago
Dear Aditya
 
Sin i = 12-x/8Sin r =x/2Sin i = Sin r12-x/8 = x/2x = 12/5 = 2.4 cm from Y
 
Regards
Arun

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