Which of the following conditions are necessary and sufficient for total internal reflection to take place at the boundary between two optical media?

I. Light is passing from optical denser medium to optically less dense medium

II. Light is passing from optically less dense medium to optically denser medium

III. Angle of incidence is greater than a certain critical value

IV. Angle of incidence is lesser  than a certain critical value

 

Similar Questions

Which of the following properties makes metals ideal for cooking utensils? ...

A plane inclined at an angle at 30o to the horizontal has an efficiency of 50%. The force parallel t...

The average distance moved by a molecule between collisions is called ...

The types of motion which a cylindrical drum rolling down an inclined plane undergoes are ...

If the linear magnification of the objective and eyepiece convex lenses of a compound microscope are...

A particle of mass M initially at rest splits into two. If one of the particles of mass M1 moves wit...

Calculate the temperature of 6 moles of an ideal gas at a pressure of 7.6 x 106Nm-2 with a volume of...

Three 5 ohms resistors connected in parallel have a potential difference of 60v. applied across the ...

When an a.c. voltage is applied to a capacitor, no power is consumed because the current ...

Electric charges on the surface of a conductor would be most evenly distributed if the shape of the ...