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The value of Planck's constant is 6.63xx...

The value of Planck's constant is `6.63xx10^(-34)` Js. The velocity of light is `3.0xx10^(8)ms^(-1)`. Which value is closest to the wave length in nanometers of a quantum of light with frequency `8xx10^(15)s^(-1)`?

A

`2 xx 10^(-25)`

B

`5 xx 10^(-18)`

C

`3 xx 10^(7)`

D

`40`.

Text Solution

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The correct Answer is:
D
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