Optics Answers

The critical angle for total internal reflection at an air - water interface is approximately 48 degrees. In which of the following situations will total reflection occurs?

Calculate the critical angle for light passing from rock salt into air given that the refractive index of rock salt is 1.54

What is the refractive index in air

What is the apparent relative movement of two aligned objects when they are not at the same distance from an observer

newton ring are formed in reflected light of wavelength 6000A with a liquid between the plane and curved surface .if the diameter of the 6th bright ring is 3.1mm and radius of curvature of curved surface if 100cm calculate the index of the liquid sir answer plz

what is a normal ?
what is an incident ray ?
what is a reflected angle?
what is a laterally inverted ?
what is a virtual image ?
state law of reflection

Calculate the angle of minimum deviation of a prism if its
refracting angle is 60o
. The refractive index of the material of the
prism is 1.632

When a mirror is rotated through an angle theta, the reflected ray is rotated through an angle?

A ray of light strikes a surface of glass at an incident angle of 60o
with the normal. Calculate the angle of refraction in the glass.
The refractive index of the glass is 1.5. (Assume that the incident
ray is in air.)

Do light waves of different colours all travels at the same speed in
glass? Explain.
b) Determine the speed of yellow light with wavelength λ = 589 nm
in diamond. The refractive index of diamond is 2.42.