Question

an object placed in front of a plane mirror is displaced by 0.4 M along a straight line at an angle of 30 degree to Mirror the change in the distance between the object and its image is

Answer 1

Bro, refer to Foundation Science by Bharti Bhavan publication Book.
The Exact Ans. with a Great explanation is provided there.

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Answer 2

Answer:

0.4m

Explanation:

draw the ray diagram and the distance will be 0.4cos30×2