Question

The temperature of an ideal gas in 3-dimensions is 300 K. The corresponding de-Broglie wavelength of the electron approximately at 300 K, is :

[m_e = mass of electron = 9 × 10^–31 kg

h = Planck constant = 6.6 × 10^–34 Js

k_B = Boltzmann constant = 1.38 × 10^–23 JK^–1]

(1) 6.26 nm

(2) 8.46 nm

(3) 2.26 nm

(4) 3.25 nm

Answer 1

 Correct Option is (1) 6.26 nm

De-Broglie wavelength