Question

Which of the following forces is not a fundamental force in nature?
A. Gravitational force
B. Electromagnetic force
C. Strong nuclear force
D. Tension

Answer 1

Fundamental forces govern whether objects or particles interact with each other and how certain particles decay. Fundamental forces can be strong as well as weak.

Complete step by step answer:
There are basically four fundamental forces, these forces are called fundamental, because they alone are responsible for all observations of forces in nature. The four fundamental forces are: gravity, electromagnetism, weak nuclear force, and strong nuclear force.
Let us discuss each one of them in detail: Gravity is the reason that we are bound to the surface of the Earth. Gravity is the attraction between two objects which have mass or energy, whether this is a planet orbiting a star or the moon causing ocean tides. It is worth knowing that gravity can even bend light.
Weak nuclear force: They are also called weak forces; they are responsible for the decay of particles. They are also responsible for the literal change of one type of subatomic particle into another. For example, a neutrino that strays close to a neutron can turn the neutron into a proton while the neutrino becomes an electron, it's all because of weak nuclear forces.
Electromagnetic force: They are also called the Lorentz force. They act between charged particles, like negatively charged electrons and positively charged protons. We know that opposite charges attract each other, while like charges repel each other.
Strong nuclear force: The strong nuclear forces are also called the strong nuclear interaction. It is the strongest of the four fundamental forces of nature.
Clearly, tension is not a fundamental force.

So, the correct answer is “Option D”.

Note:
Please note that a strong nuclear force is the strongest of all four fundamental forces.
On the other hand, gravity is the weakest of the four fundamental forces.
Fundamental forces are one which govern the interaction between particles.