The energy of an electromagnetic radiation is 19. 875 \times 10^{-13} ergs. What is its wave number in {\cm}^{-1} ? (h=6.625 \times 10^{-27}. erg sec, c=3 \times 10^{10} {\cm} { \sec}^{-1} )

EAMCET Engineering 2002 Solved Paper

Section: Chemistry

Question : 82 of 200

Marks: +1, -0

The energy of an electromagnetic radiation is 19. 875×10−13 ergs. What is its wave number in cm−1?(h=6.625×10−27. erg sec, c=3×1010‌cm‌ sec−1 )

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