A projectile is fired at an angle with the horizontal with a small velocity. Its horizontal range will be maximum when the angle with the horizontal is


B. 30°

C. 45°

D. 60°

You can do it yup
  1. A person cups his hand around the mouth when shouting. Why?
  2. Photo-electric cells convert
  3. A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it…
  4. Two tumblers stuck together can be separated by
  5. If a body weight 12N on the surface of the earth, how much will it weigh on the surface of the moon…
  6. When a bowler spins a ball, it changes its direction in the air. This is due to
  7. A sensitive instrument susceptible to magnetic infiuence can be protected from external magnetic field…
  8. A simple mercury barometer is found in a slightly slanting position. The atmospheric pressure
  9. A series of east moving still pictures can be made to appear as a moving picture because the eye
  10. SONAR (Sound Navigation Ranging) is
  11. The solar wind is composed of
  12. The velocity of sound in air increases with
  13. A solar eclipse occurs when the earth, the sun and the moon are in a straight line, and
  14. The temperature of a large bucket-full of hot water (a few degrees below boiling point) is lower than…
  15. Some persons are not able to see distant objects clearly because the image of the object is focused…
  16. When a bullet is fired from a gun
  17. The source of electric energy in an artificial satellite is
  18. The rate of cooling of a hot body depends on
  19. The aneroid barometer uses
  20. During thunder storm you are travelling in a car. To protect yourself from the lightning you will have…
  21. In a longitudinal wave, the direction of propagation of the wave is
  22. Which of the following has the highest refractive index?
  23. When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs…
  24. It is easier to climb down a staircase than climb up because in climbing down
  25. Primary colours are
  26. A workman was working on a rail track. A young boy at a distance holds his ear close to the railway…
  27. The SI unit of electric current is
  28. If you want a sound proof room, the walls should be
  29. If a band is played on the moon the sound will
  30. Which of the following wires of same dimensions offers least resistance to the ,flow of current?