Question

select the correct statement​

Answer 1

Answer:

It will be 4 A

Explanation:

Use the kinetic energy and momentum interdependence relation

wavelength = Planck's constant)/ momentum

use momentum =

$\sqrt{2mass \times kinetic \: energy}$

substitute the values and do the math you will get the answer.

Do let me know if I get wrong anywhere.

Answer 2

Answer:

option 4

Explanation:

hope it helps!!!