1.

Name a piece of apparatus other than plane mirror, which can be used to turn a ray of light through 90 degree ? Do I need to specify the type of prism used(the isosceles prism) ?

Answer» Name a piece of apparatus other than plane mirror, which can be used to turn a ray of light through 90 degree ? Do I need to specify the type of prism used(the isosceles prism) ?


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