does convex lense focus heat waves also?
Asked by subhash chand | 2nd Mar, 2011, 12:00: AM
That is the reason why one can burn paper using convex lens by letting it face the sunlight pass through it.The infra red/heat producing radiations pass through the lens, converge at its focus & if a piece of paper is placed at its focus, it will burn.
Answered by | 2nd Mar, 2011, 10:14: PM
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