Physics questions and answers

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.

1,822.

Which of the following phenomena is not a direct consequence of rectilinear propagation of light?

A.

lunar and solar eclipses

B.

images of objects in a pin hole camera

C.

diffraction of light

D.

shadows of opaque object

Correct answer is C

No explanation has been provided for this answer.

1,823.

The distance between two points P and Q, along a wave is 0.05m. If the wave length of the wave is 0.10m, determine the phase angle between P and Q in radians

A.

0.1\(\pi\)

B.

\(\pi\)

C.

2\(\pi\)

D.

10\(\pi\)

Correct answer is B

No explanation has been provided for this answer.

1,824.

Which of the following wave is electromagnetic?

A.

x-rays

B.

sound waves

C.

water waves

D.

tidal waves

Correct answer is A

No explanation has been provided for this answer.

1,825.

The pressure of a fixed mass of an ideal gas at 27°C is 3 pa. The gas is heated at a constant volume until its pressure is 5 pa. Determine the new temperature of the gas.

A.

100oC

B.

227oC

C.

273oC

D.

500oC

Correct answer is B

\(\frac{P_1}{T_1} = \frac{P_2}{T_2} = \frac{3}{300} = \frac{5}{T_2}\)

T\(_2\) = 500°C

°C = 500 - 273 = 227°