उस फोटॉन का तरंगदैर्घ्य निकालें जिसकी ऊर्जा `10 xx 10^(-19)` है। `(h=xx6.63xx10^(-34)Js)`

What is the de Broglie wavelength related to an electron of energy 100 eV ? (Given, mass of electron, m = 9.1 xx 10^(-31) kg, " " e = 1.6 xx 10^(-19) C and h = 6.63 xx 10^(-34) J.s )

Calculate the awavength ( in naometer ) assoricatioed with a protojn moving at 1.0xx 10^3 (Mass of proton =1.67 xx 10^(-27) kg and h=6.63 xx 10^(-34) js) :

Calculate the frequency associated with a photon of energy 3.3 xx 10^(-20) J (h=6.6 xx 10^(-34) Js) .

Calculate the wavelength of de Broglie waves associated with a proton of kinetic energy 500 eV. (Given : m_(p)=1.67 xx 10^(-27)kg, h=6.63 xx 10^(-34)Js ).

Calculate the wavelength associated with a proton moving at 1.0xx10^(3)m//s . (Mass of proton =1.67xx10^(-27)kg and h=6.63xx10^(-34) Js)

The threshold wavelength of Na element is 6800 Å.Its work function is ………. xx10^(-19)J.(h=6.625xx10^(-34)Js,C=3xx10^(8)ms^(-1))