CameraIcon

SearchIcon

MyQuestionIcon

1

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

Image Formation by Convex Lens

I have a proj...

Question

I have a projector that takes small pictures and projects them on to a large screen so that a large group of people can view the pictures.
What kind of the lens can be used to create images on the screen, and where should the pictures be placed in relation to the lens and its focal length, f?

Open in App

Solution

Concave lens can be used to project a small picture on a large screen so that if the object is at its focus then image can be magnified.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A projector lens has a focal length of

10 c m

. It throws an image of a

2 c m \times 2 c m

slide on a screen

5

meter from the lens. Find
(i) the size of the picture on the screen.
(ii) the ratio of illuminations of the slide and of the picture on the screen.

Q. A projector lens has a focal length 10 cm. It throws an image of a

2 c m \times 2 c m

Slide on a screen 5 meter away from the lens. Find
(i) The size of the picture on the screen and
(ii)ratio of illuminations of the slide and of the picture on the screen.

Q. While a moving picture is being screened, a boy introduced a glass slab thickness

3 c m

and refractive index

1.5

between the projector and the screen. In order to have a clear picture on the screen, the screen show to be moved through a distance of :

Q. A slide projector has to project a

35 m m

(35 m m \times 23 m m)

2 m \times 2 m

screen at a distance of

10 m

from the lens. What should be the focal length of the lens in the projector.?

Q. A convex lens forms a real and inverted imaged an object on a screen kept at a distance of 50 cm from it At what distance should the object be placed from the screen so that the size of the image formed is equal to the size of the object.what is the focal length of the lens used?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Image formation by Convex Lens Tackle

PHYSICS

Watch in App

explore_more_icon

Explore more

Image Formation by Convex Lens

Standard X Physics

Join BYJU'S Learning Program

CrossIcon