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.
i
2i
90o-i
90o+ i
180o - 2i
Correct answer is E
No explanation has been provided for this answer.
2.5 X103J kg-10C-1
6.0 X102J kg-10C-1
2.5 x 102J kg-10C-1
1.4 X102J kg-10C-1
1.0 x 102J kg-10C-1
Correct answer is B
Which of the following instruments is used to measure relative humidity?
Hydrometer
Barometer
Manometer
Hypsometer
Hygrometer
Correct answer is E
No explanation has been provided for this answer.
1.17 x 107 Nm-2
6.80 x 105Nm-2
1.17x105Nm-2
1.03 x 105Nm-2
1.36 x104 Nm-2
Correct answer is C
Pressure at a depth for fluid with constant density such as mercury is given as
\(p = p_{0} + \rho hg\)
where \(p_{0}\) = atmospheric pressure.
\(p_{0} = \rho hg =13600 \times \frac{76}{100} \times 10\)
= \(103,360 Nm^{-2}\)
\(p = 103,360 + (13600 \times \frac{10}{100} \times 10)\)
\(p = 103,360 + 13,600\)
\(p = 116,960 Nm^{-2} \approxeq 1.17 \times 10^{5} Nm^{-2}\)
Steam is at a higher temperature than boiling water
Steam possesses greater heat energy per unit mass than boiling water
Steam spreads more easily over a wider area of the skin man boiling water
Steam penetrates more deeply into the skin than boiling water
the specific latent heat of vaporization is released in changing from boiling water to steam
Correct answer is B
No explanation has been provided for this answer.