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

The value of Planck's constant is `6.63 xx 10^(-34)` Js. The velocity of light is `3.0 xx 10^(8) ms^(-1)`. Which value is closest to the wavelength in nanometers of a quantum of light with frequency of `8 xx 10^(15) s^(-1)`?

A

`2xx10^(-25)`

B

`5xx10^(-18)`

C

`37.5`

D

`26.7`

Text Solution

Verified by Experts

`lamda=c/v=(3xx10^(8)ms^(-1))/(8xx10^(15)s^(-1))=0.375xx10^(-7)m`
`=37.5xx10^(-9)m=37.5 mm`
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