Science

The rod in the dry cell, which act as the positive terminal, is made of
Carbon

Which instrument is used for measuring solar radiations?
Pyrheliometer

Which instrument is used for precise measurement of refractive indices?
Spectrometer

Which is used for controlling the chain reaction in nuclear reactor?
Molecules of high energy

Who discovered the law of attraction and repulsion between electric charges?
Coulomb

The lightning conductor used for protection buildings from lightning is made of
Copper

By the use of which lens myopia be corrected?
Concave

Which particle is emitted by the filament of a vacuum tube?
Electrons

Which is used as a electrolyte in chromium plating?
Chromic acid solution

The transformer works on which principle?
Electro magnetic induction