Radiation of wavelength is incident a photocell. The fastest emitted has speed 'u'. If the wavelength is charged to \frac{3 \\lambda}{4}, the speed of the fastest emitted electron will be {\\lambda}' is incident a photocell. The fastest emitted has speed 'u'. If the wavelength is charged to {3 \λ}/{4}, the speed of the fastest emitted electron will be

=u (\frac{3}{4} )^{ \frac{1}{2}}

>u (\frac{4}{3} )^{ \frac{1}{2}}

= u (\frac{4}{3} )^{ \frac{1}{2}}

NEET 2019 Model Question Paper 3

Question : 134 of 180

Marks: +1, -0

Radiation of wavelength ′λ′ is incident a photocell. The fastest emitted has speed 'u'. If the wavelength is charged to

3λ

, the speed of the fastest emitted electron will be

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