The image formed by a converging lens of focal length is ...
The image formed by a converging lens of focal length is of a distance of 2f from the lens. Calculate the lateral magnification produced
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
What is the equivalent of 20K in Celsius scale?...
Which of the following statement s is/are not correct about a standing wave? I. It is formed by t...
A bullet fired vertically upward from a gun held 2.0 m above the ground reaches its maximum hei...
Which of the following media allow(s) the transmission of sound wave through them? I. Air II. Li...