Railway tracks are banked on curves so that

A. the necessary centrifugal force may be obtained from the horizontal component of the weight of the train

B. the frictional force between the track and the wheels is avoided

C. the necessary centripetal force may be derived from the horizontal component of the weight of the train

D. None of these

You can do it yup
  1. Nichrome is used in electric heaters and irons because
  2. If you want to open a door with les difficulty you push it
  3. Of the following types of electromagnetic radiation which has the longest wavelength?
  4. Railway tracks are banked on curves so that
  5. An electric fan converts
  6. In a refrigerator cooling is produced by
  7. A person does not sink in the Dead Sea because
  8. The rate of cooling of a hot body depends on
  9. Heat transfer
  10. Stars twinkle because of
  11. We see the sun before it actually rises on the horizon. This is due to
  12. The device for tracking and locating the position of a moving object in space is called
  13. Which of the following pairs is not correct?
  14. The inability of a body to change its state of rest or uniform motion along a straight line is called…
  15. Which of the following is wrongly matched?
  16. The scientist who first sent electromagnetic waves to distant places was
  17. The world's first artificial satellite Sputnik I was launched by Russia in
  18. The earth's nearest neighbour in space is
  19. Diamond shines because of its
  20. The hygrometer is an apparatus used for finding the
  21. A piece of cork la embedded inside an ice block which floats in water. What will happen to the level…
  22. Antiparticle of electron is
  23. Out of the following which is an insulator?
  24. At what temperature do the Fahrenheit and Kelvin scales give the same reading?
  25. The brightest star visible to the naked eye is
  26. The principle of equivalence of mass and energy was established by
  27. A man weighing 50 kg floats on water in a lake. His apparent weight is
  28. Tap water is placed in an open pad and allowed to evaporate. After some time the temperature of water
  29. The planet that is known as earth's twin is
  30. In a river, the currents are fastest where the river la