1. The minimum angle of incidence for which total internal reflection occurs is called:
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2. The distance between two successive crests is called:
3. Which instrument uses lenses to view very small objects?
4. Drying of clothes in shade is due to:
5. Which part of ear converts sound vibrations into electrical signals?
6. Which of the following waves has both transverse and longitudinal properties?
7. Which quantity depends on mass and specific heat capacity?
8. Latent heat of fusion is related to:
9. Which activity increases greenhouse gases?
10. Antinodes in a standing wave are points of:
11. Which property of waves depends on energy?
12. What is an electric field?
13. At constant volume, pressure of a gas is directly proportional to:
14. The distance between two consecutive compressions is called:
15. The part of the eye that controls the amount of light entering is:
16. Latent heat is the heat required to:
17. Critical temperature is the temperature at which:
18. Unit of electric charge is:
19. Which lens is thicker at the center than at the edges?
20. According to the kinetic theory of matter, particles of matter are always in: