Class 12PhysicsDual Nature of Radiation and MatterEinstein's Photoelectric Equation and Energy Quantum of Radiation
Medium$A$ photosensitive metallic surface has a work function $h\nu_0$. If photons of energy $2h\nu_0$ fall on this surface,the electrons are emitted with a maximum velocity of $4 \times 10^6 \, m/s$. When the photon energy is increased to $5h\nu_0$,the maximum velocity of the photoelectrons will be:
- A$2 \times 10^6 \, m/s$
- B$2 \times 10^7 \, m/s$
- C$8 \times 10^5 \, m/s$
- D$8 \times 10^6 \, m/s$
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