Lakhmir Singh and Manjit Kaur Solutions for Chapter: Reflection of Light, Exercise 5: Questions Based on High Order Thinking Skills (HOTS)

A man stands $10 \mathrm{m}$ in front of a large plane mirror. How far must he walk before he is $5 \mathrm{m}$ away from his image?

An object is placed $20 \mathrm{cm}$ in front of a plane mirror. The mirror is moved $2 \mathrm{cm}$ towards the object. The distance between the positions of the original and final images seen in the mirror is:

A man sits in an optician's chair, looking into a plane mirror which is $2 \mathrm{m}$ away from him and views the image of a chart which faces the mirror and is $50 \mathrm{cm}$behind his head. How far away from his eyes does the chart appear to be?

A ray of light strikes a plane mirror PQ at an angle of incidence of $30°$, is reflected from the plane mirror and then strikes a second plane mirror QR placed at right angles to the first mirror. The angle of reflection at the second mirror is:

Explain how to read the following message which was found on some blotting paper: