Question

Which of the following is the correct decreasing order of the strengths of four fundamental forces of nature?

• A. Electromagnetic force >weak nuclear force>gravitational force>strong nuclear force.
• B. Strong nuclear force>weak nuclear force>electromagnetic force>gravitational force
• C. Gravitational force>electromagnetic force>strong nuclear force>weak nuclear force.
• D. Strong nuclear force>electromagnetic force>weak nuclear force>gravitational force.

Answer 1

The correct option is D Strong nuclear force>electromagnetic force>weak nuclear force>gravitational force.

Coupling Constants
Strong		1
Electromagnetic		1/137
Weak		${10}^{-6}$
Gravity		${10}^{-39}$