The mirage is a phenomenon

A. generally considered as a desert happening

B. caused by unequal heating of the several layers of the atmosphere above the desert

C. in which the refracted rays take a curved path resulting in total internal refection

D. All the above

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. A ruse wire is characterised by
  2. Which of the following is not electromagnetic waves?
  3. A temperature below absolute zero for an ideal gas
  4. X-rays are
  5. In which of the following will a piece of iron weigh most?
  6. At what temperature do the Fahrenheit and Kelvin scales give the same reading?
  7. The difference between planets and stars is
  8. When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs…
  9. Mica is used in an electric iron because it is a
  10. The overhead wires supported by high towers in the grid system carry
  11. Atoms which have the same atomic number but different mass numbers are called
  12. When a swing la drawn to a side Its potential energy In relation to the earth
  13. To concentrate light on the defective teeth, the dentists use
  14. The attraction between similar molecules is called
  15. The temperature of a large bucket-full of hot water (a few degrees below boiling point) is lower than…
  16. Under similar conditions of temperature and pressure, the velocity of sound is maximum in
  17. The force of attraction or repulsion between two charged bodies is directly proportional to the product…
  18. The first Indian Satellite launched from a Russian Cosmodrome on April 16, 1975 was named
  19. In the case of bodies falling under gravity which of the following remains constant at a given place?
  20. A device used in a ship for the purpose of measuring the depth of the sea is
  21. When a whistling engine approaches a person standing on the platform, the frequency or the note
  22. The scientist who first sent electromagnetic waves to distant places was
  23. Nuclear fission process means
  24. When water is cooled from 4C to 2C its density
  25. SONAR (Sound Navigation Ranging) is
  26. Radio waves sent out by radio stations are reflected by
  27. When we tighten the string of a sitar or tanpura its pitch
  28. Solids have definite shapes. This is because
  29. Before the invention of geostationary satellites, television stations could not transmit their programmes…
  30. A balloon ruled with hydrogen will