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
A freely suspended compass needle on the earth's surface settles in a plane called---------- ...
Which of the following is NOT a Fundamental S.I unit? ...
Which is NOT one of the laws of solid friction? ...
A body of mass 2kg is released from rest on a plane inclined at an angle of 60° to the hori...
The net charge on the atom is zero because ...
The quantity of electric charge stored in a capacitor is measured in ...