Solution:
Violet colour of light deviates the maximum during dispersion of white light by the prism as it has least wavelength among all the colours.

Solution:
All automobiles uses satellite communication channel for their GPS devices.

Solution:
During sunrise and sunset, the rays have to travel a larger part of the atmosphere because they are very close to the horizon. Therefore, light other than red is mostly scattered away. Most of the red light, which is the least scattered, enters our eyes. Hence, the sun and the sky appear red.

Solution:
Angular momentum has the same dimensions as that of Planck's constant.

Solution:
The sensation of weightlessness in a spacecraft in an orbit is due to the acceleration in the orbit which is equal to the acceleration due to gravity outside.

Solution:
Geothermal energy is heat energy generated and stored in the Earth. Geothermal energy has been used for thousands of years in some countries for cooking and heating.

Solution:
Acceleration is directly proportional to force.