Respuesta :
Answer:
The highest order spot is 5.33.
Explanation:
Given that,
Angle = 22°
Order number = 2
In a laser diffraction experiment, the condition for constructive interference or bright spot is
[tex]d\sin\theta=m\lambda[/tex]
Put the value into the formula
[tex]d\sin22=2\lambda[/tex]
[tex]\dfrac{d}{\lambda}=\dfrac{\sin22}{2}[/tex]
[tex]\dfrac{d}{\lambda}=0.1873[/tex]
The maximum grating for
[tex]\theta=90^{\circ}[/tex]
We need to calculate the highest order spot
Using formula of the highest order spot
[tex]m=\dfrac{d\sin\theta}{\lambda}[/tex]
Put the angle into the formula
[tex]m=\dfrac{d}{\lambda}[/tex]
Put the value into the formula
[tex]m=\dfrac{1}{0.1873}[/tex]
[tex]m=5.33[/tex]
Hence,The highest order spot is 5.33.
