Question

When a plane mirror is placed horizontally on level ground at a distance of 60m from the foot of tower,
the top of the tower and its image in the mirror subtend an angle of 90° at the eye. The height of the tower
[ ]
is
c) 90 m
d) 120 m
a) 30m
b) 60 m
​

Answer 1

hence the ht. of the tower I'd 60m