is incident on a photocell. The fastest emitted electron has speed v. If the wavelength is changed to 3λ/4

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Radiation of wavelength λ, is incident on a photocell. The fastest emitted electron has speed v. If the wavelength is changed to 3λ/4, the speed of the fastest emitted electron will be :
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Radiation of wavelength λ, is incident on a photocell. The fastest emitted electron has speed v. If the wavelength is changed to 3λ/4, the speed of the fastest emitted electron will be : is incident on a photocell. The fastest emitted electron has speed v. If the wavelength is changed to 3λ/4 Radiation of wavelength [...]
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