Light of wavelength $\lambda $strikes a photo-sensitive surface and electrons are ejected with kinetic energy E. If the kinetic energy is to be increased to 2E, the wavelength must be changed to $\lambda '$ where

Question

Accepted Answer

$\frac{\lambda }{2} < \lambda ' < \lambda $

Answer

$\lambda ' = \frac{\lambda }{2}$

Answer

$\lambda ' = 2\lambda $

Answer

$\lambda ' > \lambda $

Dual Nature of Radiation and Matter

Question: Light of wavelength $\lambda $strikes a photo-sensitive surface and electrons are ejected with kinetic energy E. If the kinetic energy is to be increased to 2E, the wavelength must be changed to $\lambda '$ where

Dual Nature of Radiation and Matter

Question: Light of wavelength $\lambda $strikes a photo-sensitive surface and electrons are ejected with kinetic energy E. If the kinetic energy is to be increased to 2E, the wavelength must be changed to $\lambda '$ where

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