List of top Questions asked in Punjab PMET- 2011

A wheel is rotating at $ 900\,\,rpm $ about its axis. When the power is cut off it comes to rest in $ 1\min $ . The angular retardation in $ rad/{{s}^{2}} $ is
Galileo writes that for angles of projection of a projectile at angles $\left(45^{\circ}+\theta\right)$ and $\left(45^{\circ}-\theta\right)$, the horizontal ranges described by the projectile are in the ratio
The potential energy of a weightless spring compressed by a distance a is proportional to
The plane of a dip circle is set in the geographic meridian and the apparent dip is $\delta_1$. It is then set in a vertical plane perpendicular to the geographic meridian. The apparent dip angle is $\delta_2$. The diclination $\theta$ at the plane is
Two masses $ M $ and $ m $ are attached to a vertical axis by weightless thread of combined length $ l. $ They are set in rotational motion in a horizontal plane about this axis with constant angular velocity $ \omega $ . If the tensions in the thread are same during motion, the distance of M from the axis is,
A uniform rope of length $L$, resting on a frictionless horizontal surface, is pulled at one end by a force $F$. The tension in the rope at a distance $I$ from this end is
The wavelength of the first line of Balmer series is $6563\,??. The Rydberg constant for hydrogen is about
Bulk modulus of water is $ 2\times 10^{9}N/m^{2}$ . The change in pressure required to increase the density of water by $0.1\%$ is
A body starts to fall freely under gravity. The distances covered by it in first, second and third seconds are in ratio
A body of mass $5\, kg $ is moving with a momentum of $10\,kg\,m/s $ . A force of $ 0.2\,N $ acts on it in the direction of motion of the body for $10\, s$. The increase in its kinetic energy is
A thin circular ring of mass $ M $ and radius $ r $ is rotating about its axis with constant angular velocity $ \omega $ . Two objects each of mass $ m $ , are placed gently at the opposite ends of diameter of the ring. The ring now rotates with an angular velocity