Question

What will be wavelength of a photon of momentum 6.6 × 10^–24 kgms^–1?

Options

• 1 A°

• 2 A°

• 4 A°

• 1.5 A°

Answer 1

1 A°

Explanation:

`lambda = h/p = (6.62 xx 10^-34)/(6.6 xx 10^24)`

= 10^-10 m

= 1 A°