Advertisements
Advertisements
प्रश्न
What is meant by magnification? Write its expression. What is its sign for the (a) real (b) virtual, image?
Advertisements
उत्तर
Magnification is the ratio of the length of image to the length of the object.
m = `1/"O"`
It is also given as
m = `-"v"/"u"`
Where, u and v is the object and image distance, respectively.
Hence, we have
- For real image: u and v are negative. So, m is negative.
- For virtual image: u is negative and v is positive. So, m is positive.
APPEARS IN
संबंधित प्रश्न
Complete the following sentence:
All the distances are measured from the .......... of a spherical mirror.
What do you mean by the term dispersion?
Mention the types of mirrors used as (i) rear view mirrors, (ii) shaving mirrors. List two reasons to justify your answers in each case.
Name the kind of mirror used to obtain :
A real and enlarged image
Upto what maximum distance from the pole the image in a convex mirror can be obtained? what will be the location of object then ?
The image formed by a convex mirror is
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
Define linear magnification produced by a mirror?
