What is visual angle? What is its value for an object which is at infinity?

Define RQ. What is its value for fats?

Define R.Q. What is its value for fats?

What is the value of tan angle XZY ?

What is the kinetic energy of an object ?

In the figure, what is the value of angle x?

At what distance in front of a concave mirrorof focal length 10 cm, an object be placed so that its virtual image of size five times that of the object is obtained?

What is GEAC and what are its objectives?

What is GEAC and what are its objectives?

What is kWh ? State its value in S.I. unit.

Name the universal gas constant. What is its value in SI unit ?