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The value of Planck's constant is 6.63 x 10-34 Js. The speed of light is 3 \times 1017 nm s-1. Which value is closest to the

wavelength in nanometer of a quantum of light with frequency of 6 x 1015 s -1?

  • Option 1)

    75

  • Option 2)

    10

  • Option 3)

    25

  • Option 4)

    50

 

Answers (1)

best_answer

c= \nu \lambda or \lambda =\frac{C}{\nu }

C = 3 \times 1017 nms-

\nu = 6 \times 1015 s-1 

=> \lambda = 50 nm

 


Option 1)

75

this is the incorrect option

Option 2)

10

this is the incorrect option

Option 3)

25

this is the incorrect option

Option 4)

50

this is the correct option

Posted by

prateek

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