NEET 2022 Phase 1

The peak voltage of the ac source is equal to

A series LCR circuit with inductance 10 H, capacitance 10 \(\mu\)F, resistance 50 \(\Omega\) is connected to an ac source of voltage, V = 200sin(100t) volt. If the resonant frequency of the LCR circuit is v0 and the frequency of the ac sour...

The graph which shows the variation of the de Broglie wavelength (\(\lambda\)) of a particle and its associated momentum (p) is

In the given nuclear reaction, the element X is
\({}_{11}^{22}Na \to X + {e^ + } + v\)

Let T1 and T2 be the energy of an electron in the first and second excited states of hydrogen atoms, respectively. According to the Bohr's model of an atom, the ratio T1 : T2 is

A nucleus of mass number 189 splits into two nuclei having mass number 125 and 64. The ratio of radius of two daughter nuclei respectively is

A capacitor of capacitance C = 900 pF is charged fully by 100 V battery B as shown in figure (a). Then it is disconnected from the battery and connected to another uncharged capacitor of capacitance C = 900 pF as shown in figure (b). The el...

A shell of mass m is at rest initially. It explodes into three fragments having mass in the ratio 2 : 2 : 1. If the fragments having equal mass fly off along mutually perpendicular directions with speed v, the speed of the third (lighter) f...

Two objects of mass 10 kg and 20 kg respectively are connected to the two ends of a rigid rod of length 10 m with negligible mass. The distance of the center of mass of the system from the 10 kg mass is :

Two resistors of resistance, 100 \(\Omega\) and 200 \(\Omega\) are connected in parallel in an electrical circuit. The ratio of the thermal energy developed in 100 \(\Omega\) to that in 200 \(\Omega\) in a given time is

A copper wire of length 10 m and radius \(\left( {{{{{10}^{ - 2}}} \over {\sqrt \pi }}} \right)\) m has electrical resistance of 10 \(\Omega\). The current density in the wire for an electric field strength of 10 (V/m) is

A wheatstone bridge is used to determine the value of unknown resistance X by adjusting the variable resistance Y as shown in the figure. For the most precise measurement of X, the resistance P and Q

When two monochromatic lights of frequency, v and \({v \over 2}\) are incident on a photoelectric metal, their stopping potential becomes \({{{V_s}} \over 2}\) and Vs respectively. The threshold frequency for this metal is

A square loop of side 1 m and resistance 1 \(\Omega\) is placed in a magnetic field of 0.5 T. If the plane of loop is perpendicular to the direction of magnetic field, the magnetic flux through the loop is

Match List - I with List - II

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When light propagates through a material medium of relative permittivity \(\varepsilon\)r and relative permeability \(\mu\)r, the velocity of light, v is given by (c-velocity of light in vacuum)

The angle between the electric lines of force and the equipotential surface is

Two hollow conducting spheres of radii R1 and R2 (R1 >> R2) have equal charges. The potential would be

Two point charges \(-\)q and +q are placed at a distance of L, as shown in the figure.

The magnitude of electric field intensity at a distance R(R >> L) varies as:

A biconvex lens has radii of curvature, 20 cm each. If the refractive index of the material of the lens is 1.5, the power of the lens is

A light ray falls on a glass surface of refractive index \(\sqrt3\), at an angle 60\(^\circ\). The angle between the refracted and reflected rays would be

Two transparent media A and B are separated by a plane boundary. The speed of light in those media are 1.5 \(\times\) 108 m/s and 2.0 \(\times\) 108 m/s, respectively. The critical angle for a ray of light for these two media is

A body of mass 60 g experiences a gravitational force of 3.0 N, when placed at a particular point. The magnitude of the gravitational field intensity at that point is

Match List - I with List - II

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An ideal gas undergoes four different processes from the same initial state as shown in the figure below. Those processes are adiabatic, isothermal, isobaric and isochoric. The curve which represents the adiabatic process among 1, 2, 3 and ...

The volume occupied by the molecules contained in 4.5 kg water at STP, if the intermolecular forces vanish away is

A big circular coil of 1000 turns and average radius 10 m is rotating about its horizontal diameter at 2 rad s\(-\)1. If the vertical component of earth's magnetic field at that place is 2 \(\times\) 10\(-\)5 T and electrical resistance of ...

A ball is projected with a velocity, 10 ms\(-\)1, at an angle of 60\(^\circ\) with the vertical direction. Its speed at the highest point of its trajectory will be

The ratio of the distances travelled by a freely falling body in the 1st, 2nd, 3rd and 4th second

The displacement-time graphs of two moving particles make angles of 30\(^\circ\) and 45\(^\circ\) with the x-axis as shown in the figure. The ratio of their respective velocity is

A long solenoid of radius 1 mm has 100 turns per mm. If 1 A current flows in the solenoid, the magnetic field strength at the centre of the solenoid is

Given below are two statements:
Statement I : Biot-Savart's law gives us the expression for the magnetic field strength of an infinitesimal current element (Idl) of a current carrying conductor only.
Statement II : Biot-Savart's law is anal...

From Ampere's circuital law for a long straight wire of circular cross-section carrying a steady current, the variation of magnetic field in the inside and outside region of the wire is

Two pendulums of length 121 cm and 100 cm start vibrating in phase. At some instant, the two are at their mean position in the same phase. The minimum number of vibrations of the shorter pendulum after which the two are again in phase at th...

A spherical ball is dropped in a long column of a highly viscous liquid. The curve in the graph shown, which represents the speed of the ball (v) as a function of time (t) is

If a soap bubble expands, the pressure inside the bubble

Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : The stretching of a spring is determined by the shear modulus of the material of the spring.
Reason (R) : A coil spri...

The angular speed of a fly wheel moving with uniform angular acceleration changes from 1200 rpm to 3120 rpm in 16 seconds. The angular acceleration in rad/s2 is

The ratio of the radius of gyration of a thin uniform disc about an axis passing through its centre and normal to its plane to the radius of gyration of the disc about its diameter is

In the given circuits (a), (b) and (c), the potential drop across the two p-n junctions are equal in

As the temperature increases, the electrical resistance

In half wave rectification, if the input frequency is 60 Hz, then the output frequency would be

The truth table for the given logic circuit is

The dimensions [MLT\(-\)2A\(-\)2] belong to the

Plane angle and solid angle have

The area of a rectangular field (in m2) of length 55.3 m and breadth 25 m after rounding off the value for correct significant digits is

In a Young's double slit experiment, a student observes 8 fringes in a certain segment of screen when a monochromatic light of 600 nm wavelength is used. If the wavelength of light is changed to 400 nm, then the number of fringes he would o...

If the initial tension on a stretched string is doubled, then the ratio of the initial and final speeds of a transverse wave along the string is

An electric lift with a maximum load of 2000 kg (lift + passengers) is moving up with a constant speed of 1.5 ms\(-\)1. The frictional force opposing the motion is 3000 N. The minimum power delivered by the motor to the lift in watts is : (...

The energy that will be ideally radiated by a 100 kW transmitter in 1 hour is