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.
The electrophorous
Ebonite rod
Proof plane
Gold leaf electroscope
Capacitor
Correct answer is D
No explanation has been provided for this answer.
60 Jg-1
120 Jg-1
300 Jg-1
360 Jg-1
1500 Jg-1
Correct answer is B
Electrical Energy = Heat Energy.
I2Rt = ml
22 x 6 25 = 5 x L.
L = 120 Jg-1.
the reaction force of the table on the ice breaks the ice into water molecules
heat extracted from the ice block makes the ice block cold
the ice block absorbs heat from the atmosphere and its temperature rises
the atmosphere absorbs heat from the ice block and its temperature falls
the ice block absorbs heat from the atmosphere and its temperature remains constant as it melts
Correct answer is E
The heat of fusion is the quantity of heat necessary to change of a solid to a liquid with no temperature change
533000J
230000J
117200J
113000J
4200J
Correct answer is C
Q = McΔθ + ml
Q = {50 x 4.2 x (100 - 80) + 50 x 2260} 117200J.
Which of the following substance is not a good conductor of electricity?
Human body
Glass
Aluminium
Earth
Copper
Correct answer is B
No explanation has been provided for this answer.