Physics Test - ...

The maximum value of the function is?

f(x, y) = sin(x).cos(2y).cos(x + 2y) + sin(2y).cos(x + 2y).cos(x) in the region x=0; y=0; x+2y = 3

Of the diodes shown in the following diagrams, which one is reverse biased?

The water filled in a tank has a hole 'h' metres from the top. Find the distance 'x' where the stream of water will touch the ground from the bottom.

A force of 50 dynes is acted on a body of mass \(5 \mathrm{~g}\) which is at rest for an interval of 3 seconds, then impulse is (in \(\mathrm{Ns}\) ):

When an electron-positron pair annihilates, how much energy is released?

For a transistor, the current gain \(\alpha\) is \(0.96 .\) It is used as an amplifier in a common base circuit with a load resistance of \(4 \mathrm{k}^{\Omega}\). If the dynamic resistance of the emitter-base junction is \(48^{\Omega}\), then the voltage gain is

An electron moves at right angle to a magnetic field of 1.5 x 10^-2T with a speed of 6 x 10⁷m/s. If the specific charge of the electron is 1.7 x 10¹¹C/kg, the radius of the circular path will be :

A stone is dropped in a lake by a person from a tower 500 m high. The sound of splash will be heard by the man after approximately, (speed of the sound in air is 340 m/s , g =10m/s2)

An electron is travelling along the x-direction. It encounters a magnetic field in the y-direction. Its subsequent motion will be

If the forces of magnitude 12 Kg wt, 5 Kg wt and 13 Kg wt acting at a point are in equilibrium, then the angle between the two forces is