26.The weight of a body is ________.
   (a) maximum at the equator
   (b) minimum at the poles
   (c) the same everywhere
   (d) minimum at the equator
Ans: (d)
27.Chronometer is an instrument to measure
   (a) heat
   (b) electric potential
   (c) time
   (d) distance between two points
Ans: (c)
28.In the case of bodies falling under gravity which of the following remains
   constant at a given place?
   (a) kinetic energy
   (b) potential energy
   (c) acceleration
   (d) All the above
Ans: (c)
29.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
   (a) 0°
   (b) 30°
   (c) 45°
   (d) 60°
Ans: (c)
30.A bullet is fired at a certain angle with the horizontal. Its path will be
   (a) elliptical
   (b) a straight line
   (c) a parabola
   (d) a vertical line
Ans: (c)