The exact relationship between modulus of rigidity C, modulus of elasticity E and Poisson’s ratio ν is expressed as

This question was previously asked in
ISRO VSSC Technical Assistant Mechanical 14 July 2021 Official Paper
View all ISRO Technical Assistant Papers >
  1. E = (1 + v)
  2. C = E(2 + v)
  3. C = 
  4. C = 

Answer (Detailed Solution Below)

Option 3 : C = 
Free
ISRO Technical Assistant Mechanical Full Mock Test
80 Qs. 80 Marks 90 Mins

Detailed Solution

Download Solution PDF

Concept:

Elastic Modulus (E)

When the body is loaded within its elastic limit, the ratio of stress and strain is constant. This constant is known as Elastic modulus or Young's Modulus.

Rigidity modulus (C)

When a body is loaded within its elastic limit, the ratio of shear stress and shear strain is constant, this constant is known as the shear modulus.

Bulk modulus (K)

When a body is subjected to three mutually perpendicular like stresses of same intensity then the ratio of direct stress and the volumetric strain of the body is known as bulk modulus

The relationship between E, K, G, and μ is:

Latest ISRO Technical Assistant Updates

Last updated on May 30, 2025

-> The ISRO Technical Assistant recruitment 2025 notification has been released at the official website. 

-> Candidates can apply for ISRO recruitment 2025 for Technical Assistant from June 4 to 18.

-> A total of 83 vacancies have been announced for the post of Technical Assistant.

-> The Selection process consists of a written test and a Skill test.

-> Candidates can also practice through ISRO Technical Assistant Electrical Test Series, ISRO Technical Assistant Electronics Test Series, and ISRO Technical Assistant Mechanical Test Series to improve their preparation and increase the chance of selection. 

Hot Links: teen patti stars teen patti mastar teen patti master 2024 teen patti game - 3patti poker