Question

A laser diffraction pattern results in y = 6.0 cm, and the distance from the gap to the screen is D = 12 cm. The tangent of θ would be equal to . Calculating the inverse (tan–1) of the value for the tangent of θ would give us a diffraction angle, θ, of degrees.

Answer 1

The tangent of θ would be equal to ⇒ 0.5.

Calculating the inverse (tan–1) of the value for the tangent of θ would give us a diffraction angle, θ, of ⇒ 27 degree

Answer 2

Answer :
`\theta=26.56\ ^0`

Explanation :

It is given that,

A laser diffraction pattern results in y = 6.0 cm

Distance from gap to the screen, D = 12 cm

We know that the relation between
`\theta`, y and D is

`tan\theta=(y)/(D)`

`tan\theta=(6\ cm)/(12\ cm)`

`\theta=tan^(-1)\ 0.5`

So,
`\theta=26.56\ ^0`

Hence, this is required solution.