A coin present at the bottom of a beaker fille with water appears to be at a height. This is because of refraction.

Why does a tank filled with water appear shallow?

Pencil in a beaker filled with water seems to be broken or bent due to

A coin placed at the bottom of a tank appears to be raised,when water is poured into the tank.Why?

A small bulb is placed at the bottom of a tank containing water to a depth of 80cm. What is the area of the surface of water through which light from the bulb can emerge out? Refractive index of water is 1.33. (Consider the bulb to be a point source.)

In these question, a statement of asertion followed by a statement of reason is given .Choose the correct answer out of the following choices: Assertion and reason both are correct statements and reason is correct explanation for assertion. Assertion and reason both are correct statements but reason is not correct explanation for assertion. Assertion is correct statement but reason is wrong statement. Assertion is wrong statement but reason is correct statement. Assertion:Newton's rings are formed in the reflected system.|When the space between the lens and the glass plate is filled with a liquid of refractive index gerter than that of glass,the central spot of the pattern in bright. Reason:This is because,reflections in these cases will be ffrom a denser to a rartrer medium and the two - interfering rays are reflected under siilar conditins.

A rectangular glass block of thickness 10 cm and refractive index 1.5 is placed over a small coin.A beaker is filled with water of refractive index 4//3 to a height of 10 cm and is placed over a small block. Find the apparent position of jthe object,when it is viewed at normal incidence. .

A rectangular glass block of thickness 10 cm and refractive index 1.5 is placed over a small coin.A beaker is filled with water of refractive index 4//3 to a height of 10 cm and is placed over a small block. If the eye is slowly moved away from the normal at a certain position,the coin is found to diappear due to total internal reflection.At what surface does it happen and why? .

A tank is filled with water to a height of 12.5 cm. The apparent depth of a needle lying at the bottom of the tank is measured by a microscope to be 9.4 cm. What is the refractive index of water? If water is replaced by a liquid of refractive index 1.63 up to the same height, by what distance would the microscope have to be moved to focus on the needle again?