Topic Details (Notes format)

Fermat’s Principle (Optics)

Subject: Static GK (General Knowledge)

Book: Famous Theorems & Laws

Light follows the path that takes the least time. Explains reflection, refraction, and is a basis for geometric optics.

Practice Questions

Which of the following is the longest river in the world?

View Question

Which river runs through Baghdad, the capital of Iraq?

View Question

Who was the first Indian woman to win an Olympic medal?

View Question

Which layer of Earth’s atmosphere absorbs most of the ultraviolet radiation from the Sun?

View Question

Which giant kelp forest ecosystem is located off the coast of California?

View Question

Which Indian state is known as the "Land of Five Rivers"?

View Question

What process do plants use to convert sunlight into chemical energy?

View Question

Who discovered the Chauvet Cave paintings?

View Question

Which phenomenon in astronomy describes when the moon is closest to Earth in its elliptical orbit?

View Question

Which Chinese dynasty created the Terracotta Army to protect Emperor Qin Shi Huang in the afterlife?

View Question