MCQ
With the increase in principle quantum number, the energy difference between the two successive energy levels
- AIncreases.
- BDecreases
- ✓Remains constant
- DSometimes increases and sometimes decreases
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$(a)$ Maximum $KE$ associated with photoelectrons from the surface of any metal is $0.3\ eV$
$(b)$ No photoelectrons are emitted from the surface of $Ni$
$(c)$ If the frequency of the source of radiation is doubled then $KE$ of photoelectrons is also doubled
$(d)$ Photoelectrons will be emitted from the surfaces of all the three metals if the wavelength of the incident radiation is less than $200\ nm$
Correct statements are