A. Momentum B. Velocity C. Speed D. Acceleration
On which principle does the tape- recorder function?
A. Electromagnetic Induction B. Electrovalency C. Gay music’s law of combining volume D. Boyle’s Law
Conductors, insolators and semi- conductors differ from each other due to property of
A. ability of the current of carry B. formation of crystal lattice C. binding energy of their electrons D. mutual width of their energy gaps
Choke coil is a coil of
A. High resistance and high inductance B. Low resistance and high inductance C.High resistance and low inductance D. Low resistance and low inductance
The tendency of a liquid drop to contract and occupy minimum area is due to
A. Surface tension B. Viscosity C. Density D. Vapour pressure
Which one of the following can be used to focus sunlight?
A. Plan mirror B. Concave lens C. Concave mirror D. Convex mirror
Which one of the following sets of properties are relevant for an electrical fuse wire needed for the normal application?
A. Thick wire, high melting point alloy, short length B. thick wire, low melting point alloy, large length C. Short length, low melting point alloy, …
The blue color of the sky can be attributed to
A. differential scattering of the sunlight by the atmosphere B. Total internal reflection of the sunlight by the atmosphere C. Absorption of sunlight D. Refraction …
The spherical shape of a small drop of rain is due to
A. Viscosity B. Surface tension C. atmospheric pressure D. gravity