New chat PYQ Library Doubts Rank report

Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →

Physics · 2003 · Shift 0

64 questions from this JEE Main paper

Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.

PYQ Library
JEE Main
Papers
2003 · Shift 0
Physics

Physics · 2003 · Shift 0

64 questions from this JEE Main paper

Atoms and Nuclei4 questions Dual Nature of Radiation1 questions Electronic Devices3 questions Electromagnetic Induction2 questions Current Electricity6 questions Magnetics2 questions Magnetic Properties of Matter2 questions Alternating Current2 questions Wave Optics1 questions Geometrical Optics2 questions Electrostatics3 questions Heat and Thermodynamics4 questions Rotational Motion3 questions Gravitation3 questions Laws of Motion7 questions Work Power and Energy3 questions Simple Harmonic Motion5 questions Waves3 questions Capacitor2 questions Units and Measurements2 questions Motion in A Straight Line2 questions Motion in A Plane1 questions Center of Mass1 questions

Q119.The wavelengths involved in the spectrum of deuterium $(_{1}^{2} D)$ are slightly different from that of hydrogen spectrum, because
Physics · Atoms and Nuclei · MCQ
Q120.If the binding energy of the electron in a hydrogen atom is $13.6 e V,$ the energy required to remove the electron from the first excited state of $L i^{++}$ is
Physics · Atoms and Nuclei · MCQ
Q121.Which of the following atoms has the lowest ionization potential ?
Physics · Atoms and Nuclei · MCQ
Q122.Two identical photo-cathodes receive light of frequencies $f_{1}$ and $f_{2}$ . If the velocities of the photo electrons (of mass $m$ ) coming out are respectively $v_{1}$ and $v_{2},$ then
Physics · Dual Nature of Radiation · MCQ
Q123.In the nuclear fusion reaction $_{1}^{2} H +_{1}^{3} H \to_{2}^{4} H e + n$ given that the repulsive potential energy between the two nuclei is $\sim 7.7 \times 1 0^{- 14} J$ , the temperature at which the gases must be heated to initiate the…
Physics · Atoms and Nuclei · MCQ
Q124.In the middle of the depletion layer of a reverse- biased $p$ - $n$ junction, the
Physics · Electronic Devices · MCQ
Q125.When the current changes from $+ 2 A$ to $- 2 A$ in $0.05$ second, an $e . m . f .$ of $8 V$ is inducted in a coil. The coefficient of self- induction of the coil is
Physics · Electromagnetic Induction · MCQ
Q126.The length of a given cylindrical wire is increased by $100%$ . Due to the consequent decrease in diameter the change in the resistance of the wire will be
Physics · Current Electricity · MCQ
Q127.The thermo $e . m . f .$ of a thermo -couple is $25 μ V /^{\circ} C$ at room temperature. A galvanometer of $40 o hm$ resistance, capable of detecting current as low as $1 0^{- 5} A,$ is connected with the thermo couple. The smallest…
Physics · Current Electricity · MCQ
Q128.An ammeter reads upto $1$ ampere. Its internal resistance is $0.81 o hm$ . To increase the range to $10 A$ the value of the required shunt is
Physics · Current Electricity · MCQ
Q129.The nagative $Z n$ pole of a Daniell cell, sending a constant current through a circuit, decreases in mass by $0.13 g$ in $30$ minutes. If the electrochemical equivalent of $Z n$ and $C u$ are $32.5$ and $31.5$ respectively, the increase in…
Physics · Current Electricity · MCQ
Q130.A $3$ volt battery with negligible internal resistance is connected in a circuit as shown in the figure. The current $I$ , in the circuit will be Includes diagram
Physics · Current Electricity · MCQ
Q131.A $220$ volt, $1000$ watt bulb is connected across a $110 v o l t$ mains supply. The power consumed will be
Physics · Current Electricity · MCQ
Q132.A particle of mass $M$ and charge $Q$ moving with velocity $v$ describe a circular path of radius $R$ when subjected to a uniform transverse magnetic field of induction $B .$ The network done by the field when the particle…
Physics · Magnetics · MCQ
Q133.A particle of charge $- 16 \times 1 0^{- 18}$ coulomb moving with velocity $10 m s^{- 1}$ along the $x$ -axis enters a region where a magnetic field of induction $B$ is along the $y$ -axis, and an electric field of magnitude $1 0^{4} V / m$ …
Physics · Magnetics · MCQ
Q134.A magnetic needle lying parallel to a magnetic field requires $W$ units of work to turn it through $6 0^{\circ} .$ The torque needed to maintain the needle in this position will be :
Physics · Magnetic Properties of Matter · MCQ
Q135.The magnetic lines of force inside a bar magnet
Physics · Magnetic Properties of Matter · MCQ
Q136.Two coils are placed close to each other. The mutual inductance of the pair of coils depends upon
Physics · Electromagnetic Induction · MCQ
Q137.In an oscillating $L C$ circuit the maximum charge on the capacitor is $Q$ . The charge on the capacitor when the energy is stored equally between the electric and magnetic field is
Physics · Alternating Current · MCQ
Q138.The core of any transformer is laminated so as to
Physics · Alternating Current · MCQ
Q139.To demonstrate the phenomenon of interference, we require two sources which emit radiation
Physics · Wave Optics · MCQ
Q140.The image formed by an objective of a compound microscope is
Physics · Geometrical Optics · MCQ
Q141.To get three images of a single object, one should have two plane mirrors at an angle of
Physics · Geometrical Optics · MCQ
Q142.A strip of copper and another of germanium are cooled from room temperature to $80 K .$ The resistance of
Physics · Electronic Devices · MCQ
Q143.The difference in the variation of resistance with temperature in a metal and a semiconductor arises essentially due to the difference in the
Physics · Electronic Devices · MCQ
Q144.Three charges $- q_{1}, + q_{2}$ and $- q_{3}$ are placed as shown in the figure. The $x$ -component of the force on $- q_{1}$ is proportional to Includes diagram
Physics · Electrostatics · MCQ
Q145.The earth radiates in the infra-red region of the spectrum. The spectrum is correctly given by
Physics · Heat and Thermodynamics · MCQ
Q146.A particle performing uniform circular motion has angular frequency is doubled & its kinetic energy halved, then the new angular momentum is
Physics · Rotational Motion · MCQ
Q147.Let $F$ be the force acting on a particle having position vector $r,$ and $τ$ be the torque of this force about the origin. Then
Physics · Rotational Motion · MCQ
Q148.A circular disc $X$ of radius $R$ is made from an iron plate of thickness $t,$ and another disc $Y$ of radius $4 R$ is made from an iron plate of thickness $\frac{t}{4} .$ Then the relation between the moment of inertia $I_{X}$ and $I_{Y}$ is
Physics · Rotational Motion · MCQ
Q149.The time period of satellite of earth is $5$ hours. If the separation between the earth and the satellite is increased to $4$ times the previous value, the new time period will become
Physics · Gravitation · MCQ
Q150.Two spherical bodies of mass $M$ and $5 M$ & radii $R$ & $2 R$ respectively are released in free space with initial separation between their centers equal to $12 R$ . If they attract each other due to gravitational force only, then the…
Physics · Gravitation · MCQ
Q151.The escape velocity for a body projected vertically upwards from the surface of earth is $11 k m / s .$ If the body is projected at an angle of $4 5^{\circ}$ with the vertical, the escape velocity will be
Physics · Gravitation · MCQ
Q152.Three forces start acting simultaneously on a particle moving with velocity, $v .$ These forces are represented in magnitude and direction by the three sides of a triangle $A B C$ . The particle will now move with velocity Includes diagram
Physics · Laws of Motion · MCQ
Q153.A horizontal force of $10 N$ is necessary to just hold a block stationary against a wall. The coefficient of friction between the block and the wall is $0.2$ . The weight of the block is Includes diagram
Physics · Laws of Motion · MCQ
Q154.''Heat cannot by itself flow from a body at lower temperature to a body at higher temperature'' is a statement or consequence of :
Physics · Heat and Thermodynamics · MCQ
Q155.During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio $C_{p} / C_{V}$ for the gas is
Physics · Heat and Thermodynamics · MCQ
Q156.Which of the following parameters does not characterize the thermodynamic state of mattter?
Physics · Heat and Thermodynamics · MCQ
Q157.A body is moved along a straight line by a machine delivering a constant power. The distance moved by the body in time $^{'} t^{'}$ is proportional to
Physics · Work Power and Energy · MCQ
Q158.A mass $M$ is suspended from a spring of negligible mass. The spring is pulled a little and then released so that the mass executes $S H M$ of time period $T .$ If the mass is increased by $m .$ the time period becomes $\frac{5 T}{3}$ . Then…
Physics · Simple Harmonic Motion · MCQ
Q159.Two particles $A$ and $B$ of equal masses are suspended from two massless springs of spring of spring constant $k_{1}$ and $k_{2}$ , respectively. If the maximum velocities, during oscillation, are equal, the ratio of amplitude of $A$ and $B$ …
Physics · Simple Harmonic Motion · MCQ
Q160.The length of a simple pendulum executing simple harmonic motion is increased by $21%$ . The percentage increase in the time period of the pendulum of increased length is
Physics · Simple Harmonic Motion · MCQ
Q161.A body executes simple harmonic motion. The potential energy $(P . E),$ the kinetic energy $(K . E)$ and total energy $(T . E)$ are measured as a function of displacement $x .$ Which of the following statements is true ?
Physics · Simple Harmonic Motion · MCQ
Q162.The displacement of particle varies according to the relation $x = 4$ $(cos π t + sin π t) .$ The amplitude of the particle is
Physics · Simple Harmonic Motion · MCQ
Q163.A metal wire of linear mass density of $9.8 g / m$ is stretched with a tension of $10 k g$ - $w t$ between two rigid supports $1$ metre apart. The wire passes at its middle point between the poles of a permanent magnet, and it vibrates in…
Physics · Waves · MCQ
Q164.The displacement $y$ of a wave travelling in the $x$ -direction is given by $y = 1 0^{- 4} sin (600 t - 2 x + \frac{π}{3}) m e t r es$ where $x$ is expressed in metres and $t$ in seconds. The speed of the wave - motion, in…
Physics · Waves · MCQ
Q165.A tuning fork of known frequency $256 H z$ makes $5$ beats per second with the vibrating string of a piano. The beat frequency decreases to $2$ beats per second when the tension in the piano string is slightly increased. The frequency of the…
Physics · Waves · MCQ
Q166.A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor
Physics · Capacitor · MCQ
Q167.If the electric flux entering and leaving an enclosed surface respectively is $ϕ_{1}$ and $ϕ_{2},$ the electric charge inside the surface will be
Physics · Electrostatics · MCQ
Q168.A thin spherical conducting shell of radius $R$ has a charge $q .$ Another charge $Q$ is placed at the center of the shell. The electrostatic potential at a point $P$ a distance $\frac{R}{2}$ from the center of the shell is
Physics · Electrostatics · MCQ
Q169.The work done in placing a charge of $8 \times 1 0^{- 18}$ coulomb on a condenser of capacity $100$ micro-farad is
Physics · Capacitor · MCQ
Q170.Dimensions of $\frac{1}{μ _{0} ε _{0}}$ , where symbols have their usual meaning, are
Physics · Units and Measurements · MCQ
Q171.The physical quantities not having same dimensions are
Physics · Units and Measurements · MCQ
Q172.A car, moving with a speed of 50 km/hr, can be stopped by brakes after at least 6 m. If the same car is moving at a speed of 100 km/hr, the minimum stopping distance is
Physics · Motion in A Straight Line · MCQ
Q173.A boy playing on the roof of a 10 m high building throws a ball with a speed of 10 m/s at an angle of $3 0^{\circ}$ with the horizontal. How far from the throwing point will the ball be at the height of 10 m from the ground? $[g = 10 m / s^{2}, sin 3 0^{\circ} = \frac{1}{2}, cos 3 0^{\circ} = \frac{3}{2}]$ …
Physics · Motion in A Plane · MCQ
Q174.The co-ordinates of a moving particle at any time 't' are given by x = $α$ t3 and y = βt3. The speed to the particle at time 't' is given by
Physics · Motion in A Straight Line · MCQ
Q175.A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring reads $49 N,$ when the lift is stationary. If the lift moves downward with an acceleration of $5 m / s^{2}$ , the reading of the spring…
Physics · Laws of Motion · MCQ
Q176.A marble block of mass $2 k g$ lying on ice when given a velocity of $6 m / s$ is stopped by friction in $10 s .$ Then the coefficient of friction is
Physics · Laws of Motion · MCQ
Q177.A block of mass $M$ is pulled along a horizontal frictionless surface by a rope of mass $m .$ If a force $P$ is applied at the free end of the rope, the force exerted by the rope on the block is
Physics · Laws of Motion · MCQ
Q178.A light spring balance hangs from the hook of the other light spring balance and a block of mass $M k g$ hangs from the former one. Then the true statement about the scale reading is
Physics · Laws of Motion · MCQ
Q179.A rocket with a lift-off mass $3.5 \times 1 0^{4} k g$ is blasted upwards with an initial acceleration of $10 m / s^{2} .$ Then the initial thrust of the blast is
Physics · Laws of Motion · MCQ
Q180.Consider the following two statements : $A .$ Linear momentum of a system of particles is zero $B .$ Kinetic energy of a system of particles is zero. then
Physics · Center of Mass · MCQ
Q181.A wire suspended vertically from one of its ends is stretched by attaching a weight of $200 N$ to the lower end. The weight stretches the wire by $1 mm .$ Then the elastic energy stored in the wire is
Physics · Work Power and Energy · MCQ
Q182.A spring of spring constant $5 \times 1 0^{3} N / m$ is stretched initially by $5 c m$ from the unstretched position. Then the work required to stretch it further by another $5 c m$ is
Physics · Work Power and Energy · MCQ