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.
Weber
Telsa
Hertz
Henry
Farad
Correct answer is D
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.