Please solve question no.2 and 3.

Dear Student

2. 
Distance between man and his image = 6 m
    Distance between man and mirror + distance between mirror and image = 6m
    Also, Distance between man and mirror = distance between mirror and image 
    So, the distance of man from mirror = 6/2 = 3 m

3. 
    (a) Image of the insect is formed 1m behind the mirror.
    (b) Distance between the insect and his image = 1 + 1 = 2 m

Regards

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