Deepak uses a magnifying lens to enlarge newspaper print
Deepak uses a magnifying lens to enlarge newspaper print. Then he points the same lens at his sister standing far away, and she appears small and upside down. Deepak says the lens has gone bad. Farah says the lens is fine and only the distance has changed. Who is right?
Want to know who's right, and why? Reason it out yourself — free, in Hindi, Hinglish or English.
Start thinking on Socho →More disagreements in Light: Mirrors and Lenses
In a clean room a torch makes a circle on the wall, but the beam itself is not visible in betweenStanding before a mirror, Sameer raises his right hand and the reflection appears to raise its leftThe power is out and the room is completely darkAnil says only shiny things, a mirror or still water, reflect light; a rough plaster wall does notA photo Kiran took has come out blurred