Question

The de broglie wavelength of an electron
is 2A°. Its momentum will be
1) 10-24 kg-m/sec
2) 3.31 x 1024 kg-m/sec
3) 10-26 kg-m/sec
4) 6.62 x 10-24 kg-m/sec​

Answer 1

Answer:

The relationship between de Broglie wavelength (λ) and the momentum (p) of a photon is given by:

λ=

p

h

.

Using this, the momentum of an electron having wavelength 2

A

˚

is 3.3125×10

−24

kg-m/s.

So, the answer is option (A).