An object placed at 20cm in front of a concave mirror produces three times magnified real image. What is the focal length of the concave mirror?

An object is placed at 20 cm in front of a concave mirror produces three times magnified real image. What is focal length of the concave mirror ?

For an object placed at a distance 20 cm from a concave mirror, the image is formed at the same position. What is the focal length of the mirror?

An object placed 12 cm from the pole of a concave mirror produces a real image magnified four times.Find the radius of curvature of the mirror.

A concave mirror produces three times magnified real image of an object placed at 10 cm in front of it. Where is the image located ?

A concave mirror produces three times magnified real image of an object placed at 10 cm in front of it. Where is the image located ?

A concave mirror produces three times magnified real image of an object palced at 10 cm in front of it. Where is the image located ?

Where should an object be placed in front of a concave mirror to get a magnified image ?

An object is placed in front of a concave mirror, a three times magnified image is formed. If the object is moved through a distance 20 cm towards the mirror, a virtual image of same magnification is formed. What is the focal length of the mirror?