A small object is placed 20 cm in front of a block of glass 10 cm thick and its farther side silvered. The image is formed 22 cm behind the silvered face. Find the refractive index of glass.

An object is placed 20cm in front of a block of glass 10cm thick having its farther side silvered. The image is formed 23.2cm behind the silvered face. The refractive index of glass is

One face of a rectangular glass plate 6 cm thick is silvered. An object held 8 cm in front of the unsilvered face forms an image 10 cm behind the silvered face.Find the refractive index of glass. Consider all the three steps.

An object O is placed at 8cm in front of a glass slab, whose one face is silvered as shown in Figure. The thickness of the slab is 6cm. If the image formed 10 cm behind the silvered face, find the refractive index of glass.

One face of a rectangular glass plate 6 cm thick is silvered. An object held 8 cm in front of the first face, forms an image 12 cm behind the silvered face. The refractive index of the glass is

One face of a rectangular glass plate 6 cm thick is silvered. An object held 8 cm in front of the first face, forms an image 12 cm behind the silvered face. The refractive index of the glass is

Onc face of a rectangular glass plate 6 cm thick is silcerd. An object held 8 cm in front of the first face, froms an image 12 cm behind the silvered face. The refractive index of the glass is