Optics Answers

What will be the expected fringe shift of earth in macheal moley exp. If the effective length of path is 8m and wave length of light used is 8000amstrung (v. Velocity of earth is 3×10^4

If prism has 1.5 refractive index and emission angle is double of incidence angle, what will be the angle of minimum deviation?

Describe the difference between what we see in a specular reflection versus a diffuse reflection.

Describe the difference between what we see in a specular reflection versus a diffuse reflection.

What would be the effect on focal length if different colours of light falls on a lens? The focal length would remain same or not?

An under water swimmer is at a depth of 12 m below the surface of water. A bird is at a height of 18 m from the surface of water, directly above his eyes. For the swimmer the bird appears to be at a distance ______ from the surface of water. (Refractive Index of water = 4/3 )
Answer : 24cm

Ray of light incident at an angle 60° on a √3 cm thick plate the shift in the path of the ray as it emerges out from the plate is? ( Refractive index of plate is √3)

A person's eye is at a height of 1.5m.He stands infront of a 0.3m long plane mirror which is 0.8m above the ground.The length of the image he sees of himself is:

A ray of light passes from air though a rectangular glass block whose longest parallel sides are 4.5cm apart. Given that the angle of incidence is 52°, determine the lateral displacement of the ray. (Refractive index of glass= 1.5)

A microscope is focused on an insect. When the insect is covered by a plate of glass of 2 cm thick, the microscope has to be raised 0.67cm the insect to be focused. Calculate the refractive index of the glass.