The Density Calculator uses the formula p=m/V, or density (p) is equal to mass (m) divided by volume (V). The calculator can use any two of the values to calculate the third. Density is defined as mass per unit volume.

3 0

4 years ago

An X-ray beam with λ = 157 pm incident on the surface of a crystal produced a maximum reflection at an angle of θ = 28.5 ∘. Assu

WARRIOR [948]

Answer:

The separation between layers of atoms in the crystal is 164.52 pm.

Explanation:

Formula used

$n \lambda = 2d\sin \theta$ (Bragg's law)

Where :

n = an order of reflection (integer)

$\lambda$ = wavelength of the beam incident X-ray

d = spacing between the layer

θ = incident angle ( angle between ray and scatter plane)

We have :

λ = 157 pm

θ = 28.5°

n = 1

d = ?

$1\times 157 pm= 2d\sin (28.5^o)$ (Bragg's law)

$d=\frac{1\times 157 pm}{2\times \sin (28.5^o)}=164.52 pm$

The separation between layers of atoms in the crystal is 164.52 pm.

8 0

3 years ago