One face of a glass cube of side 0.06 m is silvered.An object is placed at a distance of 0.07 m from the face opposite to the silvered face.Looking from the object side,the image of the object appears to be 0.11 m behind the silvered face.Calclate the refrative index of the material of glass.

Calculate the position of image, when an object is placed at a distance of 15 cm from a convex mirror having focal length 0.45 m.

A transparent cube of side 210 mm contains a small air bubble. Its apparent distance, when viewed through one face of the cube is 100 mm and when viewed through the opposite face is 40 mm. What is the actual distance of the bubble from the second face and what is the refractive index of the material of the cube?

An object is placed at 0.06 m from a convex lens of focal length 0.10 m.Calculate the position and nature of the image.

The radii of curvature of the two faces of a convex lens are 0.1 m and 0.15 m respectively.If the foal length of the lens is 0.12 m,find the refractie index of the material of the lens.

A point object is placed at a distance of 20 cmA point object is placed at distance of 20cm from a thin plano convex lens of focal length 15cm.The plane surface of the lens is now silvered. The image created by the system is at .

A double convex lens made of glass of refactive index 1.56 has both radii of curvature of magnitude 20 cm.If an object is placed at a distance of 10 cm from this lens,find the positiojn of the image formed.

A point object is placed at a distance of 0.3 m from a convex lens(focal length 0.2 m) cut into two halves,each of which is displaced by 0.5 mm as shown in Fig.2.67 .Find the positio of the image.If more than one image is formed,find their number nd the distance between them. .

An object is kept 0.2 m from a conex lens of focal length 0.15 m .Find the position of the image.

A point object is placed at the centre of a glass sphere of radius 6 cm and refractive index 1.5.The distance of the virtual image from the surface of the sphere is