Question

a concave mirror of focal length 20cm forms a realiimage

Answer 1

Answer:

what is the question?

Explanation:

then what to find

Answer 2

Answer:

• A concave mirror of focal length 20 cm forms a real, inverted image of the same size as that of the object.
• A concave mirror of focal length 20 cm forms the image of an object which is 2 times the size of the object.