Question

A grating has 16000 per inch over a length of 5 inches. What will be the smallest wavelength difference for a light of wavelength 6000 Å?
a) 0.01 A
b) 0.02 Å
c) 0.03 Å
d) 0.04 Å​

Answer 1

Answer:

try kro yar galat to hoga n

Answer 2

$\red{\textbf{Answer :- (c) 0.03}}$

Explanation:

$\textsf{Given :- }$

A grafting has 16000 per inch .

Length = 5 inches

Given wavelength = 6000 Å

so ,

N = 16000 X 5

= 80000,

n = 2

$\textsf{wavelength }$ = 6 X 10-5cm

$\textsf{Resolving power }$ = nN = 2 X 80000

= 160000

$\textsf{Smallest wavelength difference }$

=λ/nN

= 0.0375 Å.

$\Large\textsf{More \: information}$:-

• wavelength = $λ = \Huge\frac{v}{f}$

λ = wavelength

v = velocity

f = frequency