Question

Q.18 Fig. shows a plane mirror of length 2a kept parallel
to a screen S', at a distance of 2a from it with a
small light source S in between. The length on the
screen receiving the reflected light is
M
S
2a
M
S'
(A) zero
(B) 2a
(D) 6a
(C) 4a
Q.19
A person has a 15 cm wide face and his two eyes
are separated by 9 cm. The minimum width of a
mirror reequired for the person to view his
complete face laterally is -
(A) 15 cm
(B) 9 cm
(C) 6 cm
(D) 3 cm
00
Ahollis oflength 6 m and height 3 m. A person​

Answer 1

Answer:

12A and 8A is right answer