MCQ
The capacitance of a parallel plate condenser does not depend on
- AArea of the plates
- BMedium between the plates
- CDistance between the plates
- ✓Metal of the plates
capacitance $c=\frac{q}{v}$
capacitance of a parallel plate capacitor is given as
$c=\frac{k \varepsilon_0 A}{d}$
The capacitance of the condensor does not depend upon metal of the plates
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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
Statement $I$: An $AC$ circuit undergoes electrical resonance if it contains either a capacitor or an inductor.
Statement $II$: An $AC$ circuit containing a pure capacitor or a pure inductor consumes high power due to its non-zero power factor.
In the light of above statements, choose the correct answer from the options given below