(A) increase
(B) decrease
(C) change
(D) consistency
Category: Physics Mcqs
Physics Mcqs for MCAT MDCAT NTS Test PPSC FPSC KPPSC preparation Online Written exam and interview question answers.
At high altitude the air temperature is lower as compare to sea level, therefore water boils at __________ temperature.
(A) lower
(B) higher
(C) constant
(D) absolute
Evaporation is a __________ process.
(A) condensation
(B) Liquefying
(C) cooling
(D) convection
The refrigerator works on the two processes
(A) condensation and convection
(B) convection and radiation
(C) radiation and evaporation
(D) condensation and evaporation
Air is a very good __________ of heat.
(A) conductor
(B) insulator
(C) radiator
(D) evaporator
When vapors of a substance are cooled and changes into liquid, it is called
(A) conduction
(B) condensation
(C) convection
(D) evaporation
An instrument used to measure gas pressure is called
(A) ammeter
(B) barometer
(C) galvanometer
(D) manometer
If we add salt to the pure water, its boiling point will
(A) increase
(B) decrease
(C) remain same
(D) none of these
The boiling point of alcohol is
(A) 71 °C
(B) 75 °C
(C) 79 °C
(D) 83 °C
The presence of impurities __________ the freezing point of water.
(A) increases
(B) decreases
(C) accelerate
(D) do not have any effect on