A simple pendulum of length 0.4m has a period 2s. What is the period of a similar pendulum of length 0.8m at the same place? Posted on:
In which of the points labelled A, B, C, D and E on the conductor shown would electric charge tend to concentrate most? Posted on:
Two capacitors C1 and C2 are connected as shown in the diagram. The capacitance C2 is twice C1 when the key is opened the energy stored up in C1 is W. Posted on:
The resultant of two forces is 50N. If the forces are perpendicular to each other and one of them makes an angle of 30° with the resultant, find its magnitude Posted on:
1kg of boiling water at 100°C is poured into an aluminium hot water bottle at 16°C. The temperature of the water quickly falls to 96°C. Assuming that there is no loss of heat, the mass of the bottle is Posted on:
Two objects of masses 80kg and 50kg are separated by a distance of 0.2m. If the gravitational constant is 6.6 x 10-11Nm kg, calculate the gravitational attraction between them. Posted on:
Let Δx be the uncertainty in the measurements of position and Δp the uncertainty in measurement of momentum. The uncertainty principle relation is given as Posted on:
The phenomenon by which two light atomic nuclear combine to form a heavy nuclide with the release of energy is known as Posted on:
