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  4. A metal surface ejects electrons when hit by green light but none when hit by yellow light. The electrons will be ejected when the surface is hit by

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Q. A metal surface ejects electrons when hit by green light but none when hit by yellow light. The electrons will be ejected when the surface is hit by

Dual Nature of Radiation and Matter

Solution:

The photoelectric emission is possible if the wavelength of the incident light is less than that of yellow light