CBSE Class 10 Answered
to burn a paper withsunlight which one is better convex lense or concave mirror.
Asked by bobbobby | 22 Mar, 2009, 12:36: PM
Expert Answer
To burn a paper with light a convex lens is better because it focusses all the incident parallel sunrays to its focus. If the paper is kept at focus it will burn due to high concentration of energy.
Answered by | 24 Mar, 2009, 11:34: AM
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