Question

David is observing his image in a plane mirror. The distance between the mirror and his image is $4m$. If he moves $1m$ towards the rrillror, then the distance between David and his image will be

• A. $3m$
• B. $5m$
• C. $6m$
• D. $8m$

Answer 1

Answer: (C)

$6m$

C. $6m$.
Explanation:
As David moves $1m$ towards the mirror, the image also moves $1m$ towards the mirror. Now the distance between David and mirror is $3m$ and the distance between mirror and image is $3m$. So, the total distance between David and his image will be $6m$.