AIPMT 2003 | NEET Year Wise Previous Years Questions

A stationary particle explodes into two particles of masses m₁ and m₂ which move in opposite directions with velocities v₁ and v₂. The ratio of their kinetic energies E₁/E₂ is :

m₂/m₁

m₁/m₂

m₁v₂/m₂v₁

AIPMT 2003

MCQ (Single Correct Answer)

-1

A ball rolls without slipping. The radius of gyration of the ball about an axis passing through its centre of mass is K. If radius of the ball be R. then the fraction of total energy associated with its rotational energy will be

$${{{K^2} + {R^2}} \over {{R^2}}}$$

$${{{K^2}} \over {{R^2}}}$$

$${{{K^2}} \over {{K^2} + {R^2}}}$$

$${{{R^2}} \over {{K^2} + {R^2}}}$$

AIPMT 2003

MCQ (Single Correct Answer)

-1

A stone is tied to a string of length $$l$$ and is whirled in a vertical circle with the other end of the string as the centre. At a certain instant of time, the stone is at its lowest position and has a speed u. The magnitude of the change in velocity as it reaches a position where the string is horizontal (g being acceleration due to gravity) is

$$\sqrt {2\left( {{\mu ^2} - gl} \right)} $$

$$\sqrt {{u^2} - gl} $$

$$u - \sqrt {{u^2} - 2gl} $$

$$\sqrt {2gl} $$

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