Assertion: The basic laws of electromagnetism govern all electric and magnetic phenomena. Reason: The attempts to unify fundamental forces of nature reflect the quest for unification.

A. If both assertion and reason are true and the reason is the correct explanation of assertion.
B. If both assertion and reason are true and the reason is not the correct explanation of assertion.
C. If the assertion is true but the reason is false.
D. If both assertion and reason are false.

Hint: The two types of approaches in Physics are unification and reduction. Unification approach considers universal laws in different domains and conditions. Reduction approach derives the properties of complex systems using the properties and interaction of its constituent parts.

Complete step-by-step answer:
Physics is the branch of science that deals with the study of the physical world along with the concepts involving force, energy and the motion of matter. The statement “The basic laws of electromagnetism govern all electric and magnetic phenomena.” can be proven to be true by considering some of the examples like the apple drops to the ground from the tree and the motion of celestial bodies (like planets revolving around the sun).

The statement, “The attempts to unify fundamental forces of nature reflect the quest for unification.” can be proven to be true by considering some of the examples like, the usage of fundamental units, that is, SI units, is made applicable to have the same unit of measurement throughout the world. The universally applicable and acceptable laws were derived, like, the law of conservation of energy and Tyndall effect. Physics forms law using the concepts of nature (like gravitational force of nature, scattering of light coming from the sun).

As assertion and the reason are true, but the reason is not the correct explanation of assertion, thus, option (B) If both assertion and reason are true and the reason is not the correct explanation of assertion is correct.

Note: The things to be on your finger-tips for further information on solving these types of problems are: Physics derives laws from nature and conceptualises them in the form of theories and laws.