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.
Water, iron and air
Iron, air and water
Air, water and iron
Iron, water and air
Correct answer is C
No explanation has been provided for this answer.
Inside an aeroplane, flying at a high altitude,
the pressure is the same as that outside
normal atmospheric pressure is maintained by the use of air pumps
the pressure inside is less than the pressure outside
normal humidity and partial vacuum are maintained
Correct answer is B
No explanation has been provided for this answer.
vector
scalar
phasor
tensor
Correct answer is D
No explanation has been provided for this answer.
It takes much longer to cook food in the hills than in the plains, because
in the hills, the atmospheric pressure is lower than that in the plains and therefore water boils at a temperature lower than 100oC causing an increase in cooking time
due to low atmospheric pressure on the hills, the water boils at a temperature higher than 100oC and therefore water takes longer to boil
in the hills, the atmospheric density is low and therefore a lot of heat is lost to the atmosphere
in the hills, the humidity is high and therefore a lot of heat is absorbed by the atmosphere leaving very little heat for cooking
Correct answer is A
No explanation has been provided for this answer.
the intensity of light emitted by them changes with time
the distance of the stars from the earth changes with time
the refractive index of the different layers of the earth's atmosphere changes continuously, consequently the position of the image of a star changes with time
the light from the star is scattered by the dust particles and air molecules in the earth's atmosphere
Correct answer is C
No explanation has been provided for this answer.