Jee Main
Structure Of Atom
JEE Main 2021 (Online) 20th July Evening Shift
INTEGER+4 / -12021
The wavelength of electrons accelerated from rest through a potential difference of 40 kV is x \(\times\) 10\(-\)12 m. The value of x is ___________. (Nearest integer)
Give : Mass of electron = 9.1 \(\times\) 10\(-\)31 kg
Charge on an electron = 1.6 \(\times\) 10\(-\)19 C
Planck's constant = 6.63 \(\times\) 10\(-\)34 Js
Give : Mass of electron = 9.1 \(\times\) 10\(-\)31 kg
Charge on an electron = 1.6 \(\times\) 10\(-\)19 C
Planck's constant = 6.63 \(\times\) 10\(-\)34 Js