CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Lens Maker's Formula

22. A screen ...

Question

22. A screen is placed 90cm from an object. The image of the object on the screen is formed by a convex lens at two different locations separated by 20cm. Determine the focal length of the lens

Open in App

Solution

Suggest Corrections

thumbs-up

0

Similar questions

Q. A screen is placed

90 c m

from an object. The image of the object on the screen is formed by a convex lens at two different locations separated by

20 c m

. Determine the focal length of the lens.

Q. A screen is placed 90 cm from an object . The image of the object on the screen is formed by convex lens at two different locations separated by 20 cm . Determine the focal length of the lens (b) suppose the object has a size of 10 cm, and in one case the image is half of its size. Determine image size when lens is displaced to second position

Q. A screen is placed at a distance of 100cm from an object. The image of the object is formed on the screen by a convex lens for two different locations of a lens seperated by 20cm. Calculate the focal length of the lens used.

Q. (i) A screen is placed at a distance of 100 cm from an object. The image of the object is formed on the screen by a convex lens for two different locations of the lens separated by 20 cm. Calculate the focal length of the lens used.
(ii) A converging lens is kept coaxially in contact with a diverging lens - both the lenses being of equal focal length. What is the focal length of the combination?

Q. A convex lens forms a real image on a screen when an object is placed at 10 cm from the screen. On shifting the lens by 2 cm, a real image is again formed on the screen. Find the focal length of the lens.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Thin Lenses: Point Objects

PHYSICS

Watch in App

explore_more_icon

Explore more

Lens Maker's Formula

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon