Home
Class 10
PHYSICS
When an object is placed at a distance o...

When an object is placed at a distance of 15 cm from a convex lens, a real image is formed at a distance of 30 cm. What is the focal length of the lens?

Text Solution

Verified by Experts

10cm
Promotional Banner

Similar Questions

Explore conceptually related problems

When an object of height 3 cm is placed at a distance of 30 cm from a lens, a real image is formed at a distance of 60 cm. Find out the height of the image.

The image is direct and is above priciple axis an object is kept at a distance of 30 cm away from a lens. An image of same size is formed. What is the focal length of the lens ?

An object of height 3 cm is placed in front of a convex lens of focal length 20 cm at a distance of 30 cm. What is the height of the image ?

A virtual image of an object is formed at 30 cm away from a lens when an object is kept at a distance 20 cm away from it . What is the focal length of the lens ? Find the magnification of the image ?

An object of height 3 cm is placed in front of a convex lens of focal length 20 cm at a distance of 30 cm. What is the nature of the image?

A 1 cm tall object placéd at a distance 2 f from a convex lens. What is the height of the image forms.