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.
The diagram given illustrates two charged particles W and X. The charges on W and x are respectively
negative; negative
negative; positive
positive; positive
positive; negative
Correct answer is A
No explanation has been provided for this answer.
All electromagnetic waves in a vacuum have the same
wavelength
frequency
speed
amplitude
Correct answer is C
No explanation has been provided for this answer.
0.5
1.5
2.0
3.0
Correct answer is D
\(\frac{1}{U} + \frac{1}{V} = \frac{1}{F}\)
\(\frac{1}{V} = \frac{1}{F} - \frac{1}{U}\)
\(\frac{1}{V} = \frac{1}{15} - \frac{1}{20}\)
\(\frac{1}{V} = \frac{\text{4 - 3}}{60}\)
\(\frac{1}{V} = \frac{1}{60}\)
V = 60cm
M = \(\frac{V}{U} = \frac{60}{20}\)
M = 3.0cm
Red light travels faster than blue light when both of them pass through a glass prism because the
refractive index of red light is grester than that of blue light
refractive index of blue light is greater than that of red light
red light is more intense than the blue light
blue light is more intense than the red light
Correct answer is D
No explanation has been provided for this answer.
23m
128m
288m
298m
Correct answer is B
V = \(\frac{2nx}{E}\)
= \(\frac{2 \times 1 \times X}{0.8} = 320\)
2x = 0.8 x 320
x = \(\frac{0.8 \times 320}{2}\)
= 128m