NEET 1996 Physics Paper: AIPMT

According to Bohr's principle, the relation between principal quantum number ($n$) and radius of orbit ($r$) is

The energy of a hydrogen atom in its ground state is $-13.6$ eV. The energy of the level corresponding to the quantum number $n = 2$ in the hydrogen atom is

The energy stored in a capacitor of capacity $C$ and potential $V$ is given by

What will be the equivalent resistance between the two points $A$ and $D$?

In a discharge tube at 0.02 mm, there is formation of

An electron of mass $m$ and charge $e$ is accelerated from rest through a potential difference $V$ in vacuum. Its final velocity will be

The minimum wavelength of the X-rays produced by electrons accelerated through a potential difference of $V$ volts is directly proportional to

An electron beam has a kinetic energy equal to 100 eV. Find its wavelength associated with a beam, if mass of electron = $9.1 \times 10^{-31}$ kg and 1 eV = $1.6 \times 10^{-19}$ J/eV.

(Planck's constant = $6.6 \times 10^{-34}$ Js)

According to Einstein's photoelectric equation, the graph between the kinetic energy of photoelectrons ejected and the frequency of incident radiation is

If a photon has velocity $c$ and frequency $\nu$, then which of the following represents its wavelength?

The velocity of photons is proportional to (where $\nu$ = frequency)

A metal ring is held horizontally and bar magnet is dropped through the ring with its length along the axis of the ring. The acceleration of the falling magnet is

A point charge $+q$ is placed at the centre of a cube of side $l$. The electric flux emerging from the cube is

What will be the formula of mass of the earth in terms of $g$, $R$ and $G$?

A ball is dropped from a spacecraft revolving around the earth at a height of 120 km. What will happen to the ball?

The value of critical temperature in terms of van der Waals' constant $a$ and $b$ is given by

At 0 K which of the following properties of a gas will be zero?

A man fires a bullet of mass $200\text{ gm}$ at a speed of $5\text{ m/s}$. The gun is of one kg mass. By what velocity the gun rebounds backward?

A $10\text{ N}$ force is applied on a body produce in it an acceleration of $1\text{ m/s}^2$. The mass of the body is

A force vector applied on a mass is represented as $\vec{F} = 6\hat{i} - 8\hat{j} + 10\hat{k}$ and accelerates with $1\text{ m/s}^2$. What will be the mass of the body?

A body dropped from a height $h$ with initial velocity zero, strikes the ground with a velocity 3 m/s. Another body of same mass dropped from the same height $h$ with an initial velocity of 4 m/s. The final velocity of second mass, with which it strikes the ground is

The magnetic field $d\vec{B}$ due to a small current element $d\vec{l}$at a distance $\vec{r}$ and element carrying current $i$ is

Two equal electric currents are flowing perpendicular to each other as shown in the figure. $AB$ and $CD$ are perpendicular to each other and symmetrically placed with respect to the currents. Where do we expect the resultant magnetic field to be zero?

A $10\text{ eV}$ electron is circulating in a plane at right angles to a uniform field at magnetic induction $10^{-4}\text{ Wb/m}^2$ (= 1.0 gauss), the orbital radius of electron is

A beam of electrons is moving with constant velocity in a region having electric and magnetic fields of strength $20\text{ V m}^{-1}$ and $0.5\text{ T}$ at right angles to the direction of motion of the electrons. What is the velocity of the electrons?

A nucleus ruptures into two nuclear parts, which have their velocity ratio equal to $2 : 1$. What will be the ratio of their nuclear size (nuclear radius)?

A linear harmonic oscillator of force constant $2 \times 10^{6}\text{ N/m}$ and amplitude $0.01\text{ m}$ has a total mechanical energy of $160\text{ J}$. Its

A particle starts with S.H.M. from the mean position as shown in the figure. Its amplitude is $A$ and its time period is $T$. At one time, its speed is half that of the maximum speed. What is this displacement?

If a convex lens of focal length 80 cm and a concave lens of focal length 50 cm are combined together, what will be their resulting power?

If $f_V$ and $f_R$ are the focal lengths of a convex lens for violet and red light respectively and $F_V$ and $F_R$ are the focal lengths of a concave lens for violet and red light respectively, then we must have

The refractive index of water is 1.33. What will be the speed of light in water?

Light travels through a glass plate of thickness $t$ and having a refractive index $\mu$. If $c$ is the velocity of light in vacuum, the time taken by light to travel this thickness of glass is

A ray of light from a denser medium strikes a rare medium as shown in figure. The reflected and refracted rays make an angle of $90^\circ$ with each other. The angles of reflection and refraction are $r$ and $r'$. The critical angle would be

When arsenic is added as an impurity to silicon, the resulting material is

When npn transistor is used as an amplifier, then

This symbol represents

When using a triode, as an amplifier, the electrons are emitted by

An ideal gas, undergoing adiabatic change, has which of the following pressure temperature relationship?

A diatomic gas initially at $18^\circ\text{C}$ is compressed adiabatically to one eighth of its original volume. The temperature after compression will be

An equation is given here $\left(P + \frac{a}{V^2}\right) = b\frac{\theta}{V}$ where $P$ = Pressure, $V$ = Volume and $\theta$ = Absolute temperature. If $a$ and $b$ are constants, the dimensions of $a$ will be

The density of a cube is measured by measuring its mass and length of its sides. If the maximum error in the measurement of mass and lengths are 3% and 2% respectively, the maximum error in the measurement of density would be

The dimensions of impulse are equal to that of

Which of the following dimensions will be the same as that of time?

The equation of a sound wave is $y = 0.0015\sin(62.4x + 316t)$. The wavelength of this wave is

Two sound waves having a phase difference of $60^\circ$ have path difference of