the radius of curvature of convex surface is 10 cm and if an object lies at a distance of 20 cm from it in the rarer medium,find the position of the image assuming that refractive index of the rarer medium is 1.0 ,while that of the denser medium is 2.0.

If the radius of curvature of convex mirror is 40 cm and size of object is twice as that of the image,then the object distance is

A concave mirror has a focal length of 20 cm and an object is placed at a distance of 16 cm from it.Find the position of the image formed by it.

An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of the image

An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of the image

An object 8 cm long is placed at a distance of 100 cm from a concave mirror of radius of curvature 40 cm.Find the position of the image formed by the mirror.

An object is at a distance of 5 m from a convex mirror of focal length 10 cm.Where is he image formed ?

An object 2 cm high is placed at a distance of 5 cm from a concave mirror,whose radius of curvature is 20 cm.Find the position of the image.

Find the radius of curvature of the convex surface of a plano convex lens,whose focal length is 0.3 m and the refractive index of the material of the lens is 1.5/

A concave spherical surface of refractive index 3//2 is immersed in water of refracitve index 4//3 .If a piont object lies in water at a distance of 10 cm from the pole of the refracting surfae,calculate the position of the image.Given that radius of curvature of the spherical surface is 18 cm.