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CBSE Notes 2011-2012

Which of the following can make a parallel beam of light when light from a point source is incident ...

Multiple choice question

Which of the following can make a parallel beam of light
when light from a point source is incident on it ?

unknown

Concave mirror as well as convex lens

unknown

Convex mirror as well as concave lens

unknown

Two plane mirrors placed at 90

unknown

Concave mirror as well as concave lens