List of top Physics Questions asked in AIEEE

A block is kept on a frictionless inclined surface with angle of inclination '$\alpha$'. The incline is given an acceleration a to keep the block stationary. Then a is equal to :

A mass $'m'$ moves with a velocity $'v'$ and collides inelastically with another identical mass. After collision the $1^{st}$ mass moves with velocity $\frac{v}{\sqrt{3}}$ a direction perpendicular to the initial direction of motion. Find the speed of the second mass after collision :

A particle of mass $0.3\, kg$ is subjected to a force $F = - kx$ with $k = 15\, N/m$. What will be its initial acceleration, if it is released from a point $20\, cm$ away from the origin ?

A body $A$ of mass $M$ while falling vertically downwards under gravity breaks into two parts; a body $B$ of mass $\frac{2}{3}\,M.$ The centre of mass of bodies $B$ and $C$ taken together shifts compared to that of body $A$ towards :

The block of mass $M$ moving on the frictionless horizontal surface collides with the spring of spring constant $k$ and compresses it by length $L$. The maximum

If '$S$' is stress and '$Y$' is Young?s modulus of material of a wire, the energy stored in the wire per unit volume is:

The upper half of an inclined plane with inclination $\phi$ is perfectly smooth, while the lower half is rough. A body starting from rest at the top will again come to rest at the bottom, if the coefficient of friction for the lower half is given by:

A bullet fired into a fixed target loses half of its velocity after penetrating $3\,cm$. How much further it will penetrate before coming to rest, assuming that it faces constant resistance to motion ?

A $20\, cm$ long capillary tube is dipped in water. The water rises up to $8\, cm$. If the entire arrangement is put in a freely falling elevator, the length of water column in the capillary tube will be:

In a common base amplifier, the phase difference between the input signal voltage and output voltage is:

A nuclear transformation is denoted by $X\left(n, \alpha\right) \,^{7}_{3}Li.$ Which of the following is the nucleus of element $X$ ?

The thermo emf of a thermocouple varies with the temperature $?$ of the hot junction as $E = a \,? + b?^2$ in volts where the ratio $a/b$ is $700^{\circ}C$. If the cold junction is kept at $0^{\circ}C$, then the neutral temperature is

An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If the length and radii of the wires are in the ratio of $4/3$ and $2/3$, then the ratio of the currents passing through the wire will be

In a metre bridge experiment null point is obtained at $20\, cm$ from one end of the wire when resistance $X$ is balanced against another resistance $Y$. If $X < Y$, then where will be the new position of the null point from the same end, if one decides to balance a resistance of $4X$ against $Y$ ?

The resistance of the series combination of two resistances is $S$. When they are joined in parallel through total resistance is $P$. If $S = nP$, then the minimum possible value of $n$ is

The thermistors are usually made of

The total energy of particle, executing simple harmonic motion is

The bob of a simple pendulum executes simple harmonic motion in water with a period $t$, while the period of oscillation of the bob is $t_0$ in air. Neglecting frictional force of water and given that the density of the bob is $\left(\frac{4}{3}\right)\times1000\,kg/m^{3}.$ What relationship between $t$ and $t_0$ is true?

A particle of mass $m$ is attached to a spring (of spring constant $k$) and has a natural angular frequency $\omega_0$. An external force $F(t)$ proportional to $cos\omega t$ $(\omega?\omega_0)$ is applied to the oscillator. The time displacement of the oscillator will be proportional to

In forced oscillation of a particle the amplitude is maximum for a frequency $\omega_1$ of the force, while the energy is maximum for a frequency $\omega_2$ of the force, then

A charged oil drop is suspended in a uniform field of $3 ? 10^4 \,V/m$ so that it neither falls nor rises. The charge on the drop will be (take the mass of the charge $= 9.9 ? 10^{-15}\, kg$ and $g = 10\, m/s^2$)

A charged particle $q$ is shot towards another charged particle $Q$ which is fixed, with a speed v it approaches $Q$ upto a closest distance $r$ and then returns. If $q$ were given a speed $2v$, the closest distances of approach would be

The materials suitable for making electromagnets should have

The time period of an earth satellite in circular orbit is independent of