Light Test - 43...

Which of the following letter shaped pipe is most effective to build a Periscope ?

A bulb is placed between two plane mirrors inclined at an angle of $$ 60^{0}$$.The number of images formed is :

We can see books even though it does not emit light because

The instrument that can be used to see things from a concealed position 

A man stands symmetrically between two large plane mirrors fixed to two adjacent walls of a rectangular room. The number of images formed are

Which among these is the angle of incidence?

A plane mirror is placed along the x-axis facing negative y-axis. The mirror is fixed. A point object is moving with $$3\hat{i} \, + \, 4\hat{j}$$ in front of the plane mirror. The relative velocity of image with respect to its object is

A man stands symmetrically between two large plane mirrors fixed to two adjacent walls of a rectangular room. The number of images formed are:

Two plane mirrors are inclined at an angle of $${ 50 }^{ 0 }$$. Then what is the number formed for an object placed in between the mirrors -

How many images of an object are formed if two adjacent walls and the ceiling of a rectangular room are mirror surfaced?