Question

A plane mirror is placed with its plane at an angle 30° with the
y-axis. Plane of the mirror is perpendicular to the xy-plane and the
length of the mirror is 3 m. An insect moves along x-axis starting
from a distant point, with speed 2 cm/s. The duration of the time
for which the insect can see its own image in the mirror is:
(A) 300 s
(B) 200 s
(C) 150 s
(D) 100 s
​

Answer 1

Answer:

300s

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