The value of plancks constant is 663x 10-34js the, Ask an Expert

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The value of Planck's constant is 6.63x 10^-34Js. The velocity of light is 3.0x 10⁸ms^-1 . Which value is closest to the wavelength in nanometres of a quantum of light with frequency of 8x10 ¹⁵ s^-1:

(1) 3x 10⁷

(2) 2x 10 ^-25

(3) 5x 10 ^-18

(4) 4x 10 ¹

Ans: 4x 10¹

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Category:- Chemistry
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