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CBSE Notes 2011-2012

A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens...

Multiple choice question

A person cannot see distinctly objects kept beyond 2 m.
This defect can be corrected by using a lens of power

unknown

+0.5D'

unknown

- 0.5 D'

unknown

+0.2D'

unknown

'-0.2D'