Home

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

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

You can do it
  1. A bullet is fired at a certain angle with the horizontal. Its path will be
  2. To get 5 images of a single object one should have two plane mirrors inclined at an angle of
  3. The motion .of the pendulum of a wall clock is an example of
  4. An electric charge is measured in
  5. The first Indian Satellite launched from a Russian Cosmodrome on April 16, 1975 was named
  6. Who first established the fact that the earth revolves round the sun?
  7. The atmosphere gets heated up mainly by
  8. Which metal is used in storage batteries?
  9. A nuclear reactor is said to have become 'critical' when
  10. A boat loaded with rocks floats in the middle of a swimming pool. A man in the boat throws the rocks…
  11. Increase in pressure
  12. How is it that Pluto is not always the farthest planet of the solar system?
  13. If a band is played on the moon the sound will
  14. The pressure of air at high altitude is less than the atmospheric pressure at the sea level. Hence the…
  15. The image of an object formed on the retina of the eye is
  16. A star contains
  17. A lightning conductor installed in a building
  18. A ruse wire is characterised by
  19. Electron-volt is a unit of
  20. A stationary elevated object has
  21. If you want to open a door with les difficulty you push it
  22. When a bowler spins a ball, it changes its direction in the air. This is due to
  23. The speed of sound in air at 0° C is approximately
  24. A pair of stars that revolve round each other is
  25. In experiments on static electricity the standard method for obtaining small amounts of positive electricity…
  26. A convex mirror always produces
  27. Two tumblers stuck together can be separated by
  28. Electromagnets are used in
  29. If a bar magnet is broken into two pieces
  30. Red Light is used as a dancer signal because