Q. 18 The energy of the photons which corresponds to light of frequency 3x1015sec is
1) O 1.9876x1015 ergs
2) O 2.9876x108 ergs
3)
1.9876x1010 ergs
4)
1.9876x10-11 ergs
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To verify that if two parallel lines are cut by a transversal, then
i) each pair of corresponding angles are equal
ii) each pair of alternate interior angles are equal
iii) each pair of interior angles on the same side of transversal are supplementary
by paper cutting and pasting.
Materials Required: Sheets of white and coloured papers, a pair of scissors, glue,
carbon paper and a pencil/pen.
Explanation:
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