A nucleus has an atomic mass number 64. Considering the nucleus as a liquid drop, its radius will be close to

(R0 = 1.2 fm):

This question was previously asked in
AAI ATC Junior Executive 27 July 2022 Shift 1 Official Paper
View all AAI JE ATC Papers >
  1. 9.6 fm
  2. 2.4 fm
  3. 19.2 fm
  4. 4.8 fm

Answer (Detailed Solution Below)

Option 4 : 4.8 fm
Free
AAI ATC JE Physics Mock Test
6.6 K Users
15 Questions 15 Marks 15 Mins

Detailed Solution

Download Solution PDF

Concept:

  • The atomic nucleus is the small, dense region of protons and neutrons at the center of an atom.
  • It is discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment.
  • The size of the nucleus is very small compared to the size of an atom.
  • The radius of the nucleus, R = R0 A1/3 where A = atomic mass number

Calculation:

Given,

The atomic mass, A = 64

and Take, R0 = 1.2 fm

The given formula calculates the radius of the nucleus,

R = R0 A1/3 

R = 1.2 × (64)1/3 

R = 4.8 fm

Hence, the radius of the nucleus is 4.8 fm. 

Latest AAI JE ATC Updates

Last updated on May 26, 2025

-> AAI ATC exam date 2025 will be notified soon. 

-> 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 4th April 2025, along with the details of application dates, eligibility, and selection process.

-> 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 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 Nuclear Physics Questions

Get Free Access Now
Hot Links: teen patti plus teen patti joy teen patti chart teen patti gold apk