Question

Julia has a lamp fitted with a small bulb. She wants to light up a picture which covers a whole wall of
her room. Fitting which type of mirror vertically at position P, in the lamp, will make the lamp light up
the whole picture?

A. only a plane mirror
B. only a convex mirror
C. only a concave mirror
D. any-a plane, convex or concave mirror

Answer 1

only a convex mirror

hope it helps

Answer 2

The given question can be answered as shown below with the explanation given: ( Option - B )

In the question, it is given that Julie has a lamp that is fitted with a small lamp and she wants to light up the whole picture which covers approximately the size of her wall.

So to do this 'Convex Mirror' will be the best option because the light falling on the Convex mirror diverges.

Hence the convex mirrors can cover more area of lumination.

Whereas the light rays falling on the concave mirror converges at the focus and the light rays falling on the plane mirror travel parallel.

Therefore a Convex mirror is the best one to do the given job.

#SPJ2