The logic operations performed by the given digital circuit is equivalent to:

The logic performed by the circuit shown in figure is equivalent to :

If each diode has a forward bias resistance of $$25\Omega$$ in the below circuit, Which of the following options is correct :

A zener diode of power rating 1.6 W is to be used as voltage regulator. If the zener diode has a breakdown of 8V and it has to regulate voltage fluctuating between 3 V and 10 V. The value of resistance Rs for safe operation of diode will be

For a given transistor amplifier circuit in $$\mathrm{CE}$$ configuration $${\mathrm{V}}_{\mathrm{CC}}=1\mathrm{V},{\mathrm{R}}_{\mathrm{C}}=1\mathrm{k}\Omega ,{\mathrm{R}}_{\mathrm{b}}=100\mathrm{k}\Omega$$ and $$\beta =100$$. Value of base current $${\mathrm{I}}_{\mathrm{b}}$$ is

For the logic circuit shown, the output waveform at $$\mathrm{Y}$$ is:

Name the logic gate equivalent to the diagram attached

The resistivity $$(\rho )$$ of semiconductor varies with temperature. Which of the following curve represents the correct behaviour :

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Diffusion current in a p-n junction is greater than the drift current in magnitude if the junction is forward biased. Reason R: Diffusion current in a p-n junction is from the $$\mathrm{n}$$-side to the p-side if the junction is forward biased. In the light of the above statements, choose the most appropriate answer from the options given below

Choose the correct length (L) versus square of the time period ($${\mathrm{T}}^2$$) graph for a simple pendulum executing simple harmonic motion.

The maximum potential energy of a block executing simple harmonic motion is $$25\mathrm{J}$$. A is amplitude of oscillation. At $$A/2$$, the kinetic energy of the block is

For a simple harmonic motion in a mass spring system shown, the surface is frictionless. When the mass of the block is $1\mathrm{kg}$, the angular frequency is ${\omega }_1$. When the mass block is $2\mathrm{kg}$ the angular frequency is ${\omega }_2$. The ratio ${\omega }_2/{\omega }_1$ is

A particle executes simple harmonic motion between $$x=-A$$ and $$x=+A$$. If time taken by particle to go from $$x=0$$ to $$\frac{A}{2}$$ is 2 s; then time taken by particle in going from $$x=\frac{A}{2}$$ to A is

T is the time period of simple pendulum on the earth's surface. Its time period becomes $$x$$ T when taken to a height R (equal to earth's radius) above the earth's surface. Then, the value of $$x$$ will be :

In a linear Simple Harmonic Motion (SHM) (A) Restoring force is directly proportional to the displacement. (B) The acceleration and displacement are opposite in direction. (C) The velocity is maximum at mean position. (D) The acceleration is minimum at extreme points. Choose the correct answer from the options given below:

A particle executes SHM of amplitude A. The distance from the mean position when its's kinetic energy becomes equal to its potential energy is :

Which graph represents the difference between total energy and potential energy of a particle executing SHM vs it's distance from mean position ?

A particle is executing simple harmonic motion (SHM). The ratio of potential energy and kinetic energy of the particle when its displacement is half of its amplitude will be

The variation of kinetic energy (KE) of a particle executing simple harmonic motion with the displacement $$(x)$$ starting from mean position to extreme position (A) is given by

A particle executes S.H.M. of amplitude A along x-axis. At t = 0, the position of the particle is $$x=\frac{A}{2}$$ and it moves along positive x-axis. The displacement of particle in time t is $$x=A\sin (wt+\delta )$$, then the value of $$\delta$$ will be