How many laws of physics are there?

Solution (By Examveda Team)

Physics is a complex science with several fundamental principles and laws that govern the behavior of the physical world. While there are numerous principles and equations in physics, there are four fundamental laws, also known as the "Four Fundamental Forces of Nature," that are considered the cornerstone of classical physics. These are:

1. Newton's First Law of Motion: The law of inertia.
2. Newton's Second Law of Motion: F = ma.
3. Newton's Third Law of Motion: Action and reaction are equal and opposite.
4. Law of Universal Gravitation: The force of attraction between two masses.

These laws are essential for understanding classical mechanics and are often referred to as the "laws of physics." So, the correct answer is Option B: 4, representing the four fundamental laws of physics.