A large glass slabe `(mu=5//3)` of thickness 8cm is placed over a point source of light on a plane surface. It is seen that light emerges out of th etop surface fo the slab from a circular area of radius R cm. What is the value of R?

A large glass slab (mu=5//3) of thickness 8cm is placed over a point source of light on a plane surface. It is seen that light emerges out of the top surface of the slab from a circular area of radius R cm. What is the value of R?

A glass slab (mu=1.5) of thickness 6 cm is placed over a paper. What is the shift in the letters?

A glass slab (mu=1.5) of thickness 6 cm is placed over a paper. What is the shift in the letters?

A glass slab (mu = 1.5) of thickness 6 cm is placed over a paper. What is the shift in the letters?

An object is placed 21 cm in front of a concave mirror of radius of curvature 10cm. A glass slabe of thickness 3cm and refractive index 1.5 is then placed close to the irror in the space between the object and the mirror. The distance of the near surface of the slabe from the mirror is 1cm. The final image from the mirror will be formed at

An object is placed 21 cm in front of a concave mirror of radius of curvature 10cm. A glass slabe of thickness 3cm and refractive index 1.5 is then placed close to the irror in the space between the object and the mirror. The distance of the near surface of the slabe from the mirror is 1cm. The final image from the mirror will be formed at

A point source of light is 80.0cm below the surface of a body of water. Find the diameter of the circle at the surface through which light emerges from the water.