A small photocell is placed at a distance of 4 m from a
photosensitive surface. When light falls on the surface the
current is 5 mA. If the distance of cell is decreased to 1 m,
the current will become
(a) 1.25 mA (b) (5/16)mA
(c) 20 mA (d) 80 mA
Answers
Answered by
1
80 mA is correct answer..
may this helpful..
please mark it brainliest..
Similar questions