all about focal points

Asked by Rochika | 24th Mar, 2009, 12:05: PM

Expert Answer:

lens has two refracting surfaces while mirror has only one reflecting surface.

it is because of their inward and outward curvature

Answered by  | 24th Mar, 2009, 03:35: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.