While making this paper, I stayed up till late at night working with candle light. I had two

candles of equal length L lit and placed at the same time, as shown in the figure. Immediately

thereafter I noticed that the shadow of the first candle on the left wall is not changing in

length, and the shadow of the second candle on the right wall is being shortened at a speed v.

(Take d1

= 10 cm, d2

= 20 cm, d3

= 30 cm, v = 1 mm/s, L = 20 cm.)

Joshi sir comment

Problem is interesting yet not complete. Complete it to get answer 


Submit Your Answer

please login to submit your answer

Login Here

Username / Email :

Password :

Register | Forget Password