Allow light to fall at an angle of incidence greater than the critical angle . What do you observe ?

Leave the bottle free. What do you observe?

What is the critical angle of glass?

Write whether the following statement are true or false. If false, correct the statement Total internal reflection is possible only when the angle of incidence is greater than the critical angle.

A piece of magnesium is burned in air. What do you observe ?

In which conditions total internal reflection takes place ? Light obliquely travels from the optically rarer medium to thr optically denser medium. , Light obliquely travels from the optically denser medium to the optically rarer medium, Incident angle is equal to the critical angle. , Incident angle is greater than critical angle.