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.
1:3
3:1
3:7
7:3
15:8
Correct answer is A
heat supplied by hot water = heat gained by cold water M1C(82 - 40) = M2C(40 - 26)
\(\frac{M_2}{M_1}\)= \(\frac{14}{42}\)
= 1: 3
stores the steam for future use
prevents the steam from escaping
ensures that only dry steam gets into the calorimeter
allows condensed steam to go into the calorimeter
determine the quantity of steam used
Correct answer is C
No explanation has been provided for this answer.
The boiling point of a liquid depends on the following except the
nature of the liquid
external pressure
volume of the liquid
impurities present in the liquid
degree of it's molecular cohesive force
Correct answer is C
No explanation has been provided for this answer.
54cm2
273cm2
300cm2
546cm2
600cm2
Correct answer is A
\(\frac{V_1}{T_1} = \frac{V_2}{T_2}\)
T2 = 0 + 273 = 273k
V1 = 600
T1 = 27 + 273 = 300k
V2 = \(\frac{V_1T_2}{T_1}\) = 546cm
V1 - V2 = 54cm
76cm of Hg
75cm of Hg
74cm of Hg
60cm of Hg
45cm of Hg
Correct answer is B
P1 = p + 15, p2 = p - 15
v1 = 30cm, v2 = 45cm
P1v1 = p2v2
p = 75cm of Hg