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an object of size 2 cm is placed in front of convex mirror of radius of curvature 20 cm on the other side of lens it images is formed 8 cm behind the mirror find the distance of an object from the mirror and size of the image

Posted by Anuj Varfa 4 years, 11 months ago

CBSE > Class 10 > Science

2 answers

Ambika Kumari 4 years, 11 months ago

Ho=2cm R=20cm V=8cm R=2f 20=2f F=10cm Mirror formula, 1/f=1/v+1/u 1/10=1/8+1/u 1/u=1/10-1/8 1/u=8-10/80 1/u=-2/80 U=-80/2 U=-40 Magnification, -V/u=Hi/Ho -8/-40=Hi/2 1/5=Hi/2 Hi=0.4cm.

1Thank You

Sumesh ☺️☺️☺️ 4 years, 11 months ago

Object distance is -13.33and image size is 1.5

0Thank You

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