Home
Class 10
PHYSICS
An object of height 4.0 cm is placed at ...

An object of height 4.0 cm is placed at a distance of 30 cm from the optical centre 'O' of a convex lens of focal length 20 cm. Draw a ray diagram to find the position and size of the image formed. Mark optical centre 'O' and principal focus 'F' on the diagram. Also find the approximate ratio of size of the image to the size of the object.

Text Solution

AI Generated Solution

To solve the problem step by step, we will follow these steps: ### Step 1: Identify the given values - Height of the object (H₀) = 4.0 cm - Distance of the object from the lens (u) = -30 cm (negative as per sign convention) - Focal length of the convex lens (f) = +20 cm (positive for convex lens) ### Step 2: Use the lens formula to find the image distance (v) ...
Promotional Banner

Similar Questions

Explore conceptually related problems

An object of height 2.5 cm is placed at a distance of 15 cm from the optical centre 'O' of a convex lens of focal length 10 cm. Draw a ray diagram to find the position and size of the image formed. Mark optical centre 'O', principal focus F and height of the image on the diagram.

An object of height 2 cm is placed at a distance 20cm in front of a concave mirror of focal length 12 cm. Find the position, size and nature of the image

A point object is placed at distance of 30 cm in front of a convex mirror of Focal length 30 cm. The image will form at

An object is placed at a distance of 12 cm from a convex lens of focal length 8 cm. Find : the position of the image

An object is placed at a distance of 12 cm from a convex lens of focal length 8 cm. Find : nature of the image

An object of height 2 cm is placed in front of a convex lens of focal length 20 cm at a distance of 15 cm from it. Find the position and magnification of the image.

An object of length 2.0 cm is placed perpendicular to the principal axis of a convex lens of focal length 12 cm. Find the size of the image of the object is at a distance of 8.0 cm from the lens.

An extended object is placed at a distance of 5.0 cm from a convex lens of focal length 8.0 cm. (a) Draw the ray diagram (to the scale) to locate the image and from this, measure the distance of the image from the lens, (b) Find the position of the image from the lens formula and see how close the drawing is to the correct result.

An object 4 cm in size is placed at a distance of 25.0 cm from a concave mirror of focal length 15.0 cm. Find the position, nature and height of the image.

An object is placed at a distance of 40 cm from a convex mirror fo focal length 40cm. Find image position and its magnification.Also ,draw its ray diagram.