A.10-15 cms
B.15-20 cms
C.20-21 cms
D.None of these
Related Mcqs:
- In which of these eye defects the anteroposterior diameter of the eye ball is short:
- A solid spherical ball rolls on a table. The momen’ of inertia of the ball is given by 3/5 x mass x radius2. The ratio of translational and rotational kinetic energies for ball will be
- Owing to reduction of the diameter of eye ball the retina comes close to lens and the light rays strike the retina before they have converged again resulting in blurred image, this defect is called:
- A ball of mass 1 kg moving with a velocity of 2 m/sec collides directly with a stationary ball of mass 2 kg. If the first ball comes to rest after the impact the velocity of second ball after impact will be
- A ball A of mass 0.25 kg moving on a smooth horizontal table with a velocity of 10 m/s strikes an identical stationary ball B on the table. If the impact is perfectly elastic, the velocity of the ball B just after the impact will be
- A ball weighing 250 gm is thrown vertically upwards with a velocity of 980 cm/sec. The time that the ball will take to return back to earth would be
- Two rods A and B are subjectd to equal load P. Rod A is tapering with bigger diameter D at the support and small end diameter as D/2. Rod B is of uniform cross section with diameter D. The ratio of elongation of rod A to that of B would be
- In a ball bearing a ball is subjected to
- The closed-coiled helical springs are made from the same small diameter wire, one wound on 2.5 cm diameter core and the other on 1.25 cm diameter core. If each spring has n coils, the ratio of their spring constants would be
- A boy sitting in a rail road car throws a ball straight up into the air. The ball will fall back into his hands when the rail road car is
