Home
Class 10
PHYSICS
An object is 2m away from a lens. Which ...

An object is 2m away from a lens. Which forms an erect image`1/4th` the size of the object, determine the focal length of the lens.What type of the lens is this?

Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY

    MBD|Exercise EXAMPLE|118 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    MBD|Exercise EXAMPLE|94 Videos

Similar Questions

Explore conceptually related problems

Find the focal length of a lens of power- 2.0 D.What type of lens this?

A needle placed 45cm from a lens forms an image on the screen placed 90cm on the other side of the lens. What is the type of lens ? Find the focal length. If the length of needle is 5cm. What is the length of image ?

A convex lens forms a virtual image of an object. What is the position of the object?

An object is kept 0.2 m from a conex lens of focal length 0.15 m .Find the position of the image.

The image formed by the lens is erect and its length is three times the length of an object. If the focal length of the lens is 15 cm, what kind of lens it is ? Calculate the object and image distance.

The image obtained with a convex lens is erect and its lenth is four times the length of the object.If the focal length of the lens is 20 cm,calculate the object and image distance.