50 dioptre
1 dioptre
10 dioptre
2 dioptre
The focal length of the lens in a photographic camera is 5 cm. What is the power of the lens?
The following is measured in tonne of oil equivalent (toe) ?
The following motor is preferred for locomotives motor drives
The following particles move with same kinetic energy. Which of the following of them has max. momentum
The force exerted by a magnet is an example of _
The force exerted on an object is 200 N and its mass is 100 kg. Find the acceleration of the object.
The force of friction between two surfaces will increase if:
The force which makes a vehicle to stop when break is applied is called
The four stroke petrol engine is based on
The fourth state of matter is known as
