31.A hunter on the ground wishes to shoot a bird on a tree at a distance with his
   rifle. He has to point the rifle
   (a) at the lower elevation than the bird
   (b) at a higher elevation than the bird
   (c) in the same direction as the bird
   (d) vertically upwards
Ans: (b)
32.The distance between two bodies is halved. Now the force of attraction
   between them will be
   (a) half
   (b) one fourth
   (c) four times
   (d) two times
Ans: (c)
33.A cyclist leans inwards when he is negotiating a curve 10 that
   (a) he may increase his speed
   (b) his weight may be reduced
   (c) necessary centripetal force may be available from the horizontal
       component of the normal reaction due to the track to maintain the curved
       motion
   (d) no frictional force may be produced between the wheels and the axle
Ans: (c)
34.If the speed of the rotation of the earth increases the weight of a body
   (a) will increase
   (b) will decrease
   (c) will have no change
   (d) will either increase or decrease
Ans: (b)
35.In a vacuum the following three articles are dropped at the same time and
   from the lame height. Which will reach the ground quicker?
   (a) a stone
   (b) a piece of wood
   (c) a feather
                                          54