Find a retarding potential required to stop the escape of photoelectrons from the metal surface of work function 1.07 electron volts which is irradiated with light of wavelength 332 NM
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energy in the photons = h c /λ
= 6.6 * 10⁻³⁴ * 3* 10⁸ / (332 * 10⁻⁹ *1.6*10⁻¹⁹) eV
= 3.72 eV
work function = 1.07 eV
Retarding potential to be applied >= 2.65 V.
= 6.6 * 10⁻³⁴ * 3* 10⁸ / (332 * 10⁻⁹ *1.6*10⁻¹⁹) eV
= 3.72 eV
work function = 1.07 eV
Retarding potential to be applied >= 2.65 V.
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