Assertion (A): In the visible spectrum of light, red light is more energetic than green light. Reason (R): The wavelength of red light is more than that of green light.

Assertion (A): Radio waves bend in a magnetic field. Reason (R): Radio waves are electromagnetic in nature.

Scientists have observed the merger of giant 'blackholes' billions of light-years away from the Earth. What is the significance of this observation?

The branch of Physics that deals with the motion of very small particles is called :

Consider the following phenomena: 1. Light is affected by gravity. 2. The Universe is constantly expanding. 3. Matter warps its surrounding space-time. Which of the above is/are the prediction/predic…

How can the height of a person who is six feet tall be expressed (approximately) in nanometres?