Question

Calculate the de-Broglie wave length
associated with an electron with velocity
1.6×10⁶ ms-¹ (mass of electron
9.1×10-²¹kg)

Answer 1

Explanation:

$\gamma = \frac{h}{mv}$

LET GAMMA BE DE-BROGLIE WAVELENGTH

H BE PLANKS CONSTANT(6.673x10^-34)

$\gamma = 6.673 \times {10}^{ - 34} \div 1.6 \times 9.1 \times {10}^{ - 15}$

$\gamma = 0.45 \times {10}^{ - 19}$

Note that h=6.673 or6.623 can be taken according to problem but answer will be same