A spherical strip of glass is cut from a hollow sphere of diameter 40cm.The strip is polished so as to make a concave mirror. What is the radius of the concave mirror??? plss anyone explain!!!This is the third time I am posting this question!!!Its urgent!!!!!pls
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Radius of concave mirror will be,
radius =1/2 diameter
=1/2 * 40
= 40/2
= 20cm
radius =1/2 diameter
=1/2 * 40
= 40/2
= 20cm
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