A slit of width a is illuminated by red light | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) For single slit diffraction,the condition for the $n^{th}$ minimum is given by $a \sin 	heta = n \lambda$.Given: $n = 1$,$\lambda = 6500 \,\, \ma

Vedclass · Accepted Answer

$1.3 \,\, \mu	ext{m}$

Vedclass · Answer

(C) For single slit diffraction,the condition for the $n^{th}$ minimum is given by $a \sin 	heta = n \lambda$.Given: $n = 1$,$\lambda = 6500 \,\, \mathring{A} = 6500 	imes 10^{-10} \,\, 	ext{m}$,and $	heta = 30^{\circ}$.Substituting these values into the formula:$a \sin 30^{\circ} = 1 	imes 6500 	imes 10^{-10} \,\, 	ext{m}$Since $\sin 30^{\circ} = 0.5$,we have:$a 	imes 0.5 = 6500 	imes 10^{-10} \,\, 	ext{m}$$a = 13000 	imes 10^{-10} \,\, 	ext{m} = 1.3 	imes 10^{-6} \,\, 	ext{m} = 1.3 \,\, \mu	ext{m}$.

$A$ slit of width $a$ is illuminated by red light of wavelength $6500 \,\, \mathring{A}$. The first minimum will fall at $\theta = 30^{\circ}$ if $a$ is equal to:

Similar Questions

For three vectors $u, v, w$,which of the following expressions is not equal to the other three?

The magnetic moment of a complex ion is $2.83 \ BM$. The complex ion is

The minimum value of $|z-1|+|z-5|$ is

When a large bubble rises from the bottom of a lake to the surface, its radius doubles. If atmospheric pressure is equal to that of a column of water of height $H$, then the depth of the lake is:

Two small drops of mercury,each of radius $R$,coalesce to form a single large drop. The ratio of the total surface energies before and after the change is

Vedclass Test Series

Exam Paper Generator

Online Exam Module