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 and II only
I and III only
II and III only
II and IV only
III and IV only
Correct answer is D
No explanation has been provided for this answer.
36.67m
74.25m
148.50m
297.00
366.67m
Correct answer is C
v = 2x/t ∴ distance x = vt/2 = 148.5m
Which of the following radiations have the highest frequency?
Radio waves
Light waves
X-rays
infra-red rays
Ultraviolet rays
Correct answer is C
No explanation has been provided for this answer.
2.0 x 103Hz
1.0 x 103Hz
4.0 x 10-2Hz
1.0 x 10-3Hz
5.0 x 104Hz.
Correct answer is B
The waveform moved from A to B in \(2.5 \times 10^{-3}\) seconds.
From the diagram, A to B has \(2\frac{1}{2}\) complete oscillations between it, Therefore, the period of the oscillation is
\(\frac{2.5 \times 10^{-3}}{2.5} = 1 \times 10^{-3} s\)
\(Frequency = \frac{1}{Period}\)
= \(\frac{1}{1 \times 10^{-3}} = 1 \times 10^{3} Hz\)
refraction
reflection
diffraction
polarization
Correct answer is A
No explanation has been provided for this answer.