Question

write is meant by magnification ? write its expression .what is sign for real image and virtual image ?​

Answer 1

Solution. Magnification is the ratio of the length of image to the length of the object. ... For real image: u and v are negative. So, m is negative. For virtual image: u is negative and v is positive.

Answer 2

Answer:

1. The magnification due to a lens is the ratio of the height of the image (h2) to the height of the object (h1).
2. M =h2/h1
3. real image = +ve
4. Virtual image = -ve