Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
relative humidity is higher than at sea-level
rays of the sun adds more heat to the water
temperature is lower than that at sea-level
pressure is lower than that at sea-level
pressure is more than that at sea-level
Correct answer is D
Refer to Elementary physics, pressure reduces with height.
Which of the following statements is/are not correct?
Evaporation takes place only at the surface of the liquid
Boiling takes place throughout the volume of the liquid
Evaportaion takes place at all temperatures
Boiling takes place at a particular temperature for a liquid at a fixed external pressure
The boiling point of a liquid is not affected by impurities
Correct answer is E
No explanation has been provided for this answer.
Which of the following surfaces will radiate heat energy best?
Red
White
Black
Yellow
Blue
Correct answer is C
No explanation has been provided for this answer.
67.5oC
30.0oC
25.0oC
15.0oC
10.0oC
Correct answer is E
θ = (x/y) x 100.
where x = UFP -LFP -another scale, and y = UFP - LFP for celsius scale.
=> {(45-30)/(180-30)} x 100 = 10.0oC
120,000 W
30,000 W
333 W
300 W
30 W
Correct answer is B
P = mgh/t = (1000 \(\times\) 10 \(\times\) 60) \(\div\) 20 = 30,000 W.