Total Internal Reflection MCQ (Multiple Choice Questions) PDF Download

Thermal energy can be transferred by

1. conduction only
2. convection only
3. conduction and convection
4. conduction, convection and radiation

Total internal reflection occurs when

1. light passes from a denser to a lighter medium
2. light comes into air from vacuum
3. light goes to vacuum from air
4. light passes from denser to less dense medium

If we feel no cold or hot, we call it

1. temperature constancy
2. thermal constancy
3. thermal equilibrium
4. temperature equilibrium

Thermal energy always flows from

1. a region of higher temperature to a region of lower temperature
2. a region of lower temperature to a region of higher temperature
3. a region of high concentration to low concentration
4. a region of low concentration to high concentration

When the angle of incidence in denser medium is greater than the critical angle, will the total internal reflection take place or not?

1. It will
2. It won't take place
3. may take place
4. it is a property of total external angle