Question

A lens of foc i length 15 cm produced an image of magnification + 3 then state the positions of
object and imlige rom the optic centre of a lens?
Write the materials required to establish the relation between distance of object (u), distance of
image (v) and focal lenght of a lens (1)?
An object is placed at hi distance of 10 am on the principle axis of a convex lens whose focal length
is less than 10 cm. Then the image of it is observed at a distance of 30 cm from the lens find the
nature and magnification of image?
The aim of experiment to find the focal lenght of convex lens, write the steps of procedure and
observations?
Write the experimental procedure to prove focal length of a lens depends upon the surrounding
medium
An object placed in front of convex lens at a distance 25 cm on principle axis. The focal length 6
lens is 15 an, at what distance, the image is formed and write the nature and size of the image (length
Os the object is 4 cm)
. We can set the air around us? Why? Guess and write.
4 Mark questions:
Describe the image formation by convex lens for various positions of obiect when
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Answer 1

Answer:

sorry i dont know because i never red about them