Question

power of lens +2 diopter.find its lens and nature

Answer 1

lense is convex
nature is real and inverted
because the power is (+ve)
so,focal length is also (+ve)
therefore above is the answer
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Answer 2

Focal length is reciprocal of power

F=1/p

=1/2

=0.5m

=50cm.

it's focal length is positive , so this is a convex lens