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.
0.5
1
1.5
2
3
Correct answer is B
Using the lens formula,
\(\frac{1}{v} + \frac{1}{u} = \frac{1}{f}\)
Where u, v and f are the object distance, image distance and focal length respectively.
\(\therefore \frac{1}{2f} + \frac{1}{u} = \frac{1}{f}\)
\(\frac{1}{u} = \frac{1}{2f} - \frac{1}{f} \implies \frac{1}{u} = \frac{1}{2f}\)
\(u = 2f\)
\(\therefore Magnification = \frac{\text{image distance}}{\text{object distance}}\)
= \(\frac{2f}{2f}\)
= 1
1.25k
2.50k
5.00k
10.00k
20.00k
Correct answer is C
No explanation has been provided for this answer.
\(\frac{1}{2}\)v
pv
\(\frac{p}{v}\)
pv2
\(\frac{p}{v^2}\)
Correct answer is C
No explanation has been provided for this answer.
6.50m
6.25m
6.00m
5.75m
5.50m
Correct answer is A
No explanation has been provided for this answer.
0.60Hz
1.67Hz
7.50Hz
15.00Hz
26.67Hz
Correct answer is B
No explanation has been provided for this answer.