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.
0.50
0.67
0.75
1.13
Correct answer is D
\(_{g} \eta _{w} = \frac{ _g \eta _a}{ _a \eta _w}\)
= \(\frac{3}{2} \times \frac{1}{\frac{4}{3}}\)
= \(\frac{3}{2} \times \frac{3}{4}\)
= \(\frac{9}{8}\)
= 1.125
= 1.13 (to 2 d.p)
2.5 cm
3.0cm
5.0cm
25.0cm
Correct answer is A
\(\frac{1}{v} = \frac{1}{f} - \frac{1}{u}\)
= \(\frac{1}{10} - \frac{1}{2} = \frac{1}{20}\)
v = 20
but h\(_i\) = \(\frac{v \times h_o}{u}\)
= \(\frac{20 \times 2.5 }{20}\)
= 2.5cm
Which of the following properties of waves is exclusive to transverse waves?
reflection
interference
diffraction
polarization
Correct answer is D
No explanation has been provided for this answer.
When two waves are superimposed on each other, the following occurrences are possible, except
nodal lines
anti nodal lines
stationary waves
dispersion
Correct answer is D
No explanation has been provided for this answer.
Which of the following factors decreases the rate of evaporation of a liquid?
increase in pressure over the liquid
lowering the boiling point
decreasing in humidity
wind
Correct answer is A
No explanation has been provided for this answer.