Who discovered the principle of 'Law of Floating’?
(A) Galileo
(B) Archimedes
(C) Newton
(D) Writer Brothers
Best conductor of heat is?
(A) Silver
(B) copper
(C) gold
(D) none of these
Which of the following liquids is a very good conductor of heat?
(A) Ether
(B) Benzene
(C) mercury
(D) water
What is the process of making camphor vapor from solid camphor called?
(A) sublimation
(B) Evaporation
(C) thaw
(D) none of these
The process of changing a liquid into vapor before its boiling point is called
(A) Condensation
(B) freezing
(C) Evaporation
(D) none of these
The first law of thermodynamics is protected by?
(A) Momentum
(B) Energy
(C) both energy and momentum
(D) none of these
The change of state of matter from solid to liquid is called?
(A) Evaporation
(B) melting
(C) boiling
(D) none of these
What is the transmission of heat through molecular composition called?
(A) Convection
(B) Radiation
(C) conduction
(D) scattering
Refraction of light is responsible for:
(A) Shadow formation
(B) Twinkling of stars
(C) Blue color of the sky
(D) Rainbow
If the temperature of a place increases suddenly, then what is the relative humidity?
(A) increases
(B) decreases
(C) remains stationary
(D) keeps on increasing
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