The diffraction pattern of copper metal was measured with X-ray radiation of wavelength of 1.315 Å. The first order Bragg diffraction peak was found at an angle 2θ of 60°. The d-spacing between the diffracting planes in the copper metal is

  1. 3.25 Å
  2. 2.545 Å
  3. 0.415 Å
  4. 1.315 Å

Answer (Detailed Solution Below)

Option 4 : 1.315 Å
Free
AAI ATC JE Physics Mock Test
8.4 K Users
15 Questions 15 Marks 15 Mins

Detailed Solution

Download Solution PDF

Concept:

Bragg’s Law states that when an X-ray beam are allowed to scatter through a crystalline surface, its angle of incidence θ will reflect with some angle of scattering θ. And when the path difference d is equal to a whole number n, of wavelength.

It can be represented as

2dsinθ  =nλ

Calculation:

Given:

λ = 1.315 Å, n = 1,

2θ = 60°

θ = 30°

From Bragg’s law:

2d sin θ = nλ

2 × d × sin 30° = 1 × 1.315

\(d = \frac{{1.315}}{{2\; \times \;\sin 30^\circ }} = 1.315Å\)

Latest AAI JE ATC Updates

Last updated on Jul 4, 2025

-> AAI Junior Executive city intimation slip 2025 has been released at the official website. 

-> The AAI ATC Exam 2025 will be conducted on July 14, 2025 for Junior Executive.. 

-> AAI JE ATC recruitment 2025 application form has been released at the official website. The last date to apply for AAI ATC recruitment 2025 is May 24, 2025. 

-> AAI JE ATC 2025 notification is released on April 4, 2025, along with the details of application dates, eligibility, and selection process.

-> A total number of 309 vacancies are announced for the AAI JE ATC 2025 recruitment.

-> This exam is going to be conducted for the post of Junior Executive (Air Traffic Control) in the Airports Authority of India (AAI).

-> The Selection of the candidates is based on the Computer-Based Test, Voice Test and Test for consumption of Psychoactive Substances.

-> The AAI JE ATC Salary 2025 will be in the pay scale of Rs 40,000-3%-1,40,000 (E-1).

-> Candidates can check the AAI JE ATC Previous Year Papers to check the difficulty level of the exam.

-> Applicants can also attend the AAI JE ATC Test Series which helps in the preparation.

More Diffraction Questions

More Optics Questions

Get Free Access Now
Hot Links: teen patti stars teen patti master 51 bonus teen patti joy vip teen patti download teen patti star