CBSE 10 - Physics Asked by topperlearningforcontent | 02 Feb, 2022, 03:32: PM ANSWERED BY EXPERT
3. Find the size, nature and position of image formed when an object of size 1 cm is placed at a distance of 25 cm from a concave mirror of focal length 20 cm ? Sol: Here we have been given the object distance and focal length, so first of all we will find out the image distance which will give us the position of image. (i) Position of image
Thus, the position of image is 100 cm to the left side of mirror or 100 cm in front of mirror (Minus sign shows the left side of mirror). (ii) Nature of image Since the image is formed in front of the concave mirror, its nature will be “Real and Inverted”. (iii) Size of image To find the size of image, we will have to calculate the magnification first.
Thus, the size of image is 4 cm long. The minus sign here shows that the image is formed below the principal axis. That is, it is a real and inverted image. Uh-Oh! That’s all you get for now. We would love to personalise your learning journey. Sign Up to explore more. Sign Up or Login Skip for now Uh-Oh! That’s all you get for now. We would love to personalise your learning journey. Sign Up to explore more. Sign Up or Login Skip for now |