Physics Test - ...

In the circuit given below, an A.C. voltage V = 220 volt (r.m.s.) is applied. The maximum voltage across the capacitor will be

If M0 is the mass of an oxygen isotope 8O17, and Mp and Mn are the masses of a proton and a neutron, respectively, then what is the nuclear binding energy of the isotope

An electron (q = 1.6 x 10-19C) is moving at right angle to the uniform magnetic field of 3.534 x 10-5T. The time taken by the electron to complete a circular orbit is

In a stationary lift, a man is standing with a bucket full of water, having a hole at its bottom. The rate of flow of water through this hole is R0. If the lift starts to move up and down with the same acceleration such that the water flows at the rate of Ru and Rd, then

P and Q are like parallel forces. If P is moved parallel to itself through a distance x, then the resultant of P and Q moves through a distance:

A small circular flexible loop of wire of radius r carries a current l. It is placed in a uniform magnetic field B. The tension in the loop will be doubled if :

A triangle \(A B C\) forces \(\vec{P}, \overrightarrow{\mathrm{Q}}, \overrightarrow{\mathrm{R}}\) acting along IA. IB and \(\mathrm{IC}\), respectively, in equilibrium, where I is the incentre of ABC. Then, \(\overrightarrow{\mathrm{P}}: \overrightarrow{\mathrm{Q}} \cdot \overrightarrow{\mathrm{R}}\) is

The resultant of P and Q is R. If P is reversed, Q remains the same, the new resultant S is at right angle to R. The value of P / Q is

A horizontal pipe of cross-sectional diameter 5 cm carries water at a velocity of 4 m/s. The pipe is connected to a smaller pipe with a cross-sectional diameter 4 cm. What is the velocity of water through the smaller pipe?

The cylindrical tube of a spray pump has a cross-section of 8 cm2, one end of which has 40 fine holes, each of area 10-8m2. If the liquid flows inside the tube with a speed of 0.15 m min-1, then the speed with which the liquid is ejected through the holes is