Question

calculate the wavelength associated with 1) 1mev electron 2) 1mev proton​

Answer 1

Answer:

W of electron = 5.76 ×10^-23

W of proton = 1.04× 10^-23

Explanation:it will depend on both proton and electron mass as

W=h/(2ME)^1/2

E=energy in ev

E=1mev= 10^6ev

Now,

Mass of proton = 1.6 ×10^-27kg

Mass of electron = 9.01 × 10^-31kg

W(electron)=

6.65 ×10^-34÷(2×9.01×10^-31×10^6)^1/2

=5.76×10^-23

W(proton)=

6.65×10^-34÷(2×1.6×10^-27×10^6)^1/2

=1.04×10^-23

I hope that this is the answer

If i am wrong then please let me know.