NEET 2023 Manipur

An ac source is connected in the given circuit. The value of $\phi$ will be :

If Z\(_1\) and Z\(_2\) are the impedances of the given circuits (a) and (b) as shown in figures, then choose the correct option

The maximum power is dissipated for an ac in a/an:

For very high frequencies, the effective impedance of the circuit (shown in the figure) will be:-

The ground state energy of hydrogen atom is \(-13.6 ~\mathrm{eV}\). The energy needed to ionize hydrogen atom from its second excited state will be :

The wavelength of Lyman series of hydrogen atom appears in:

The angular momentum of an electron moving in an orbit of hydrogen atom is \(\mathrm{1.5\left(\frac{h}{\pi}\right)}\). The energy in the same orbit is nearly.

The equivalent capacitance of the arrangement shown in figure is:

To produce an instantaneous displacement current of \(2 \mathrm{~mA}\) in the space between the parallel plates of a capacitor of capacitance \(4 ~\mu \mathrm{F}\), the rate of change of applied variable potential difference $$\left(\frac{\...

A bullet of mass \(m\) hits a block of mass \(M\) elastically. The transfer of energy is the maximum, when :

Two particles A and B initially at rest, move towards each other under mutual force of attraction. At an instance when the speed of A is v and speed of B is 3v, the speed of centre of mass is :

A \(1 \mathrm{~kg}\) object strikes a wall with velocity \(1 \mathrm{~m} \mathrm{~s}^{-1}\) at an angle of \(60^{\circ}\) with the wall and reflects at the same angle. If it remains in contact with wall for \(0.1 \mathrm{~s}\), then the for...

A certain wire \(\mathrm{A}\) has resistance \(81 ~\Omega\). The resistance of another wire \(\mathrm{B}\) of same material and equal length but of diameter thrice the diameter of A will be :

A copper wire of radius \(1 \mathrm{~mm}\) contains \(10^{22}\) free electrons per cubic metre. The drift velocity for free electrons when \(10 \mathrm{~A}\) current flows through the wire will be (Given, charge on electron $$=1.6 \times 10...

The emf of a cell having internal resistance \(1 \Omega\) is balanced against a length of \(330 \mathrm{~cm}\) on a potentiometer wire. When an external resistance of \(2 \Omega\) is connected across the cell, the balancing length will be :

The de Broglie wavelength associated with an electron, accelerated by a potential difference of 81 V is given by:

The maximum kinetic energy of the emitted photoelectrons in photoelectric effect is independent of:

An emf is generated by an ac generator having 100 turn coil, of loop area \(1 \mathrm{~m}^2\). The coil rotates at a speed of one revolution per second and placed in a uniform magnetic field of \(0.05 \mathrm{~T}\) perpendicular to the axis...

According to Gauss law of electrostatics, electric flux through a closed surface depends on :

A charge \(\mathrm{Q} ~\mu \mathrm{C}\) is placed at the centre of a cube. The flux coming out from any one of its faces will be (in SI unit) :

If a conducting sphere of radius \(\mathrm{R}\) is charged. Then the electric field at a distance \(\mathrm{r}(\mathrm{r} > \mathrm{R})\) from the centre of the sphere would be, \((\mathrm{V}=\) potential on the surface of the sphere)

A lens is made up of 3 different transparent media as shown in figure. A point object O is placed on its axis beyond \(2f\). How many real images will be obtained on the other side?

\(\epsilon_0\) and \(\mu_0\) are the electric permittivity and magnetic permeability of free space respectively. If the corresponding quantities of a medium are \(2 ~\epsilon_0\) and \(1.5 ~\mu_0\) respectively, the refractive index of the ...

A horizontal ray of light is incident on the right angled prism with prism angle \(6^{\circ}\). If the refractive index of the material of the prism is 1.5 , then the angle of emergence will be:

An object is mounted on a wall. Its image of equal size is to be obtained on a parallel wall with the help of a convex lens placed between these walls. The lens is kept at distance x in front of the second wall. The required focal length of...

The escape velocity of a body on the earth surface is \(11.2 \mathrm{~km} / \mathrm{s}\). If the same body is projected upward with velocity \(22.4 \mathrm{~km} / \mathrm{s}\), the velocity of this body at infinite distance from the centre ...

If \(\mathrm{R}\) is the radius of the earth and \(\mathrm{g}\) is the acceleration due to gravity on the earth surface. Then the mean density of the earth will be :

For the given cycle, the work done during isobaric process is:

A container of volume \(200 \mathrm{~cm}^3\) contains 0.2 mole of hydrogen gas and 0.3 mole of argon gas. The pressure of the system at temperature \(200 \mathrm{~K}\) (\(\mathrm{R}=8.3 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\)) will be :-

A block of mass 2 kg is placed on inclined rough surface AC (as shown in figure) of coefficient of friction \(\mu\). If g = 10 m s\(^{-2}\), the net force (in N) on the block will be:

The variation of susceptibility \((\chi)\) with absolute temperature ( \(\mathrm{T}\) ) for a paramagnetic material is represented as :

A ball is projected from point A with velocity \(20 \mathrm{~m} \mathrm{~s}^{-1}\) at an angle \(60^{\circ}\) to the horizontal direction. At the highest point \(\mathrm{B}\) of the path (as shown in figure), the velocity $$\mathrm{v} \math...

A particle is executing uniform circular motion with velocity \(\vec{v}\) and acceleration \(\vec{a}\). Which of the following is true?

The position of a particle is given by
\(\vec{r}(t)=4 t \hat{i}+2 t^2 \hat{j}+5 \hat{k}\)
where \(\mathrm{t}\) is in seconds and \(\mathrm{r}\) in metre. Find the magnitude and direction of velocity \(v(t)\), at \(t=1 \mathrm{~s}\), with r...

A long straight wire of length \(2 \mathrm{~m}\) and mass \(250 \mathrm{~g}\) is suspended horizontally in a uniform horizontal magnetic field of \(0.7 \mathrm{~T}\). The amount of current flowing through the wire will be $$\left(\mathrm{g}...

A uniform electric field and a uniform magnetic field are acting along the same direction in a certain region. If an electron is projected in the region such that its velocity is pointed along the direction of fields, then the electron:

A simple pendulum oscillating in air has a period of \(\sqrt{3} \mathrm{~s}\). If it is completely immersed in non-viscous liquid, having density \(\left(\frac{1}{4}\right)^{\text {th }}\) of the material of the bob, the new period will be ...

The amount of elastic potential energy per unit volume (in SI unit) of a steel wire of length \(100 \mathrm{~cm}\) to stretch it by \(1 \mathrm{~mm}\) is (if Young's modulus of the wire \(=2.0 \times 10^{11} \mathrm{Nm}^{-2}\) ) :

Which of the following statement is not true?

The viscous drag acting on a metal sphere of diameter \(1 \mathrm{~mm}\), falling through a fluid of viscosity \(0.8 \mathrm{~Pa}\) s with a velocity of \(2 \mathrm{~m} \mathrm{~s}^{-1}\) is equal to :

A constant torque of \(100 \mathrm{~N} \mathrm{~m}\) turns a wheel of moment of inertia \(300 \mathrm{~kg} \mathrm{~m}^2\) about an axis passing through its centre. Starting from rest, its angular velocity after \(3 \mathrm{~s}\) is :-

On the basis of electrical conductivity, which one of the following material has the smallest resistivity?

The given circuit is equivalent to:

A p-type extrinsic semiconductor is obtained when Germanium is doped with:

The above figure shows the circuit symbol of a transistor. Select the correct statements given below:
(A) The transistor has two segments of p-type semiconductor separated by a segment of n-type semiconductor.
(B) The emitter is of moderat...

The diameter of a spherical bob, when measured with vernier callipers yielded the following values : \(3.33 \mathrm{~cm}, 3.32 \mathrm{~cm}, 3.34 \mathrm{~cm}, 3.33 \mathrm{~cm}\) and \(3.32 \mathrm{~cm}\). The mean diameter to appropriate ...

The mechanical quantity, which has dimensions of reciprocal of mass \((\mathrm{M}^{-1})\) is :

Which set of colours will come out in air for a situation shown in figure?

The \(4^{\text {th }}\) overtone of a closed organ pipe is same as that of \(3^{\text {rd }}\) overtone of an open pipe. The ratio of the length of the closed pipe to the length of the open pipe is :

A particle moves with a velocity \((5 \hat{i}-3 \hat{j}+6 \hat{k}) ~\mathrm{ms}^{-1}\) horizontally under the action of constant force \((10 \hat{\mathrm{i}}+10 \hat{\mathrm{j}}+20 \hat{\mathrm{k}}) \mathrm{N}\). The instantaneous power sup...