Home
Class 12
PHYSICS
A slide projector has to project a 35 mm...

A slide projector has to project a 35 mm slide `(35 mm xx 23 mm)` on a 2 m xx 2m screen at a distance of 10 m from the lens. What should be the focal length of the lens in the projector ?

Promotional Banner

Similar Questions

Explore conceptually related problems

A converging lens is to projected image of a lamp 4 times the size of the lamp on a wall at a distance of 10m from the lamp. The focal length of the lens is

A slide projector gives magnification of 10. If it projects a slide of 3 cm xx 2 cm on a screen, the area of image on screen is :

A biconvex lens is used to project a slide on screen. The slide is 2 cm high and placed at 10 cm from the lens. The image is 18 cm high. What is the focal length of the lens?

A biconvex lens is used to project a slide on screen. The slide is 2 cm high and placed at 10 cm from the lens. The image is 18 cm high. What is the focal length of the lens?

A projector lens has a focal length of 10 cm. It produces a real image of a 2cm xx 2 cm slide on a screen 5 metre from the lens. What is the size of the picture on the screen ?

A convex lens is used to obtain a magnified image of an object on a screen . The object is at a distance 10 m from the lens . If the magnification is 19. the focal length of the lens is

A convex lens is used to obtain a magnified image of an object on a screen . The object is at a distance 10 m from the lens . If the magnification is 19. the focal length of the lens is

A converging lens has a focal length of 50mm. What is the power of the lens?