Ultraviolet light of wavelength 800 A an...

Ultraviolet light of wavelength `800 A` and `700 A` when allowed to fall on hydrogen atoms in their ground states is found to liberate electrons with kinetic energies `1.8eV` and `4.0eV`, respectively. Find the value of Planck's constant.

`6.57xx10^(-34) Js`

`6.63xx10^(-34) Js`

`6.66xx10^(-34) Js`

`6.77xx10^(-34) Js`

Text Solution

Verified by Experts

The correct Answer is:

`(hc)/lambda=w+eV_(0)`

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