In a clean room a torch makes a circle on the wall, but the beam itself is not visible in between
In a clean room a torch makes a circle on the wall, but the beam itself is not visible in between. The same torch in a dusty room shows the whole beam as a bright line. Gopal says the torch becomes stronger in the dusty room. Zoya says the torch is the same and something else explains it. 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
Standing before a mirror, Sameer raises his right hand and the reflection appears to raise its leftThe power is out and the room is completely darkDeepak uses a magnifying lens to enlarge newspaper printAnil says only shiny things, a mirror or still water, reflect light; a rough plaster wall does notA photo Kiran took has come out blurred