petrol
kerosene
gasoline
diesel
Ball bearings are used in cycles, scooters etc to
Ball pen functions on the principle of
Ballistics is a branch of science that deals with which of the following?
Bats can sense obstacles because they produce
Bending of light rays in denser medium is termed as
Bernoulli theorem is based on?
Beta rays emitted by a radioactive material are
Blotting paper absorbs ink due to
Blue is what number on the resistor color code?
Bolometer is used to measure
