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Physics · 2024 · 1 Feb · Shift 2

30 questions from this JEE Main paper

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2024 · 1 Feb · Shift 2
Physics

Physics · 2024 · 1 Feb · Shift 2

30 questions from this JEE Main paper

Atoms and Nuclei2 questions Laws of Motion2 questions Dual Nature of Radiation2 questions Electrostatics2 questions Capacitor2 questions Units and Measurements1 questions Properties of Matter2 questions Current Electricity2 questions Heat and Thermodynamics2 questions Motion in A Straight Line2 questions Gravitation1 questions Wave Optics2 questions Electromagnetic Waves1 questions Electronic Devices1 questions Electromagnetic Induction2 questions Rotational Motion2 questions Simple Harmonic Motion1 questions Magnetics1 questions

Q61.From the statements given below : (A) The angular momentum of an electron in $n^{th}$ orbit is an integral multiple of $ℏ$ . (B) Nuclear forces do not obey inverse square law. (C) Nuclear forces are spin dependent. (D) Nuclear…
Physics · Atoms and Nuclei · MCQ
Q62.A body of mass $4 kg$ experiences two forces $F_{1} = 5 \hat{i} + 8 \hat{j} + 7 \hat{k}$ and $F_{2} = 3 \hat{i} - 4 \hat{j} - 3 \hat{k}$ . The acceleration acting on the body is :
Physics · Laws of Motion · MCQ
Q63.Monochromatic light of frequency $6 \times 1 0^{14} Hz$ is produced by a laser. The power emitted is $2 \times 1 0^{- 3} W$ . How many photons per second on an average, are emitted by the source ? (Given $h = 6.63 \times 1 0^{- 34} Js$ …
Physics · Dual Nature of Radiation · MCQ
Q64. $C_{1}$ and $C_{2}$ are two hollow concentric cubes enclosing charges $2 Q$ and $3 Q$ respectively as shown in figure. The ratio of electric flux passing through $C_{1}$ and $C_{2}$ is : Includes diagram
Physics · Electrostatics · MCQ
Q65.A galvanometer $(G)$ of $2Ω$ resistance is connected in the given circuit. The ratio of charge stored in $C_{1}$ and $C_{2}$ is : Includes diagram
Physics · Capacitor · MCQ
Q66.Match List - I with List - II. Choose the correct answer from the options given below : Includes table
Physics · Units and Measurements · MCQ
Q67.A big drop is formed by coalescing 1000 small droplets of water. The surface energy will become :
Physics · Properties of Matter · MCQ
Q68.A cricket player catches a ball of mass $120 g$ moving with $25 m / s$ speed. If the catching process is completed in $0.1 s$ then the magnitude of force exerted by the ball on the hand of player will…
Physics · Laws of Motion · MCQ
Q69.In a metre-bridge when a resistance in the left gap is $2Ω$ and unknown resistance in the right gap, the balance length is found to be $40 cm$ . On shunting the unknown resistance with $2Ω$ , the balance length changes…
Physics · Current Electricity · MCQ
Q70.A diatomic gas $(γ = 1.4)$ does $200 J$ of work when it is expanded isobarically. The heat given to the gas in the process is :
Physics · Heat and Thermodynamics · MCQ
Q71.Train A is moving along two parallel rail tracks towards north with speed $72 km / h$ and train B is moving towards south with speed $108 km / h$ . Velocity of train B with respect to A and velocity of…
Physics · Motion in A Straight Line · MCQ
Q72.A light planet is revolving around a massive star in a circular orbit of radius $R$ with a period of revolution T. If the force of attraction between planet and star is proportional to $R^{- 3/2}$ then choose the correct…
Physics · Gravitation · MCQ
Q73.A microwave of wavelength $2.0 cm$ falls normally on a slit of width $4.0 cm$ . The angular spread of the central maxima of the diffraction pattern obtained on a screen $1.5 m$ away from the slit, will be :
Physics · Wave Optics · MCQ
Q74.If the root mean square velocity of hydrogen molecule at a given temperature and pressure is $2 km / s$ , the root mean square velocity of oxygen at the same condition in $km / s$ is :
Physics · Heat and Thermodynamics · MCQ
Q75.If frequency of electromagnetic wave is $60 MHz$ and it travels in air along $z$ direction then the corresponding electric and magnetic field vectors will be mutually perpendicular to each other and the wavelength of the wave (in…
Physics · Electromagnetic Waves · MCQ
Q76.To measure the temperature coefficient of resistivity $α$ of a semiconductor, an electrical arrangement shown in the figure is prepared. The arm BC is made up of the semiconductor. The experiment is being conducted at $2 5^{\circ} C$ … Includes diagram
Physics · Electronic Devices · MCQ
Q77.Conductivity of a photodiode starts changing only if the wavelength of incident light is less than $660 nm$ . The band gap of photodiode is found to be $(\frac{X}{8}) eV$ . The value of $X$ is…
Physics · Dual Nature of Radiation · MCQ
Q78.A transformer has an efficiency of $80%$ and works at $10 V$ and $4 kW$ . If the secondary voltage is $240 V$ , then the current in the secondary coil is :
Physics · Electromagnetic Induction · MCQ
Q79.In an ammeter, $5%$ of the main current passes through the galvanometer. If resistance of the galvanometer is $G$ , the resistance of ammeter will be :
Physics · Current Electricity · MCQ
Q80.A disc of radius $R$ and mass $M$ is rolling horizontally without slipping with speed $v$ . It then moves up an inclined smooth surface as shown in figure. The maximum height that the disc can go up the incline is : Includes diagram
Physics · Rotational Motion · MCQ
Q81.A mass $m$ is suspended from a spring of negligible mass and the system oscillates with a frequency $f_{1}$ . The frequency of oscillations if a mass $9 m$ is suspended from the same spring is $f_{2}$ . The value of $\frac{f _{1}}{f _{2}} i$ …
Physics · Simple Harmonic Motion · Numerical
Q82.In an electrical circuit drawn below the amount of charge stored in the capacitor is $μ$ C. Includes diagram
Physics · Capacitor · Numerical
Q83.A particle initially at rest starts moving from reference point $x = 0$ along $x$ -axis, with velocity $v$ that varies as $v = 4 x m / s$ . The acceleration of the particle is $ms^{- 2}$ .
Physics · Motion in A Straight Line · Numerical
Q84.Suppose a uniformly charged wall provides a uniform electric field of $2 \times 1 0^{4} N / C$ normally. A charged particle of mass $2 g$ being suspended through a silk thread of length $20 cm$ and…
Physics · Electrostatics · Numerical
Q85.A moving coil galvanometer has 100 turns and each turn has an area of $2.0 cm^{2}$ . The magnetic field produced by the magnet is $0.01 T$ and the deflection in the coil is 0.05 radian when a current of $10 mA$ …
Physics · Magnetics · Numerical
Q86.One end of a metal wire is fixed to a ceiling and a load of $2 kg$ hangs from the other end. A similar wire is attached to the bottom of the load and another load of $1 kg$ hangs from this lower wire. Then the ratio of…
Physics · Properties of Matter · Numerical
Q87.In Young's double slit experiment, monochromatic light of wavelength 5000 Å is used. The slits are $1.0 mm$ apart and screen is placed at $1.0 m$ away from slits. The distance from the centre of the screen where…
Physics · Wave Optics · Numerical
Q88.A coil of 200 turns and area $0.20 m^{2}$ is rotated at half a revolution per second and is placed in uniform magnetic field of $0.01 T$ perpendicular to axis of rotation of the coil. The maximum voltage generated in the…
Physics · Electromagnetic Induction · Numerical
Q89.A uniform rod $A B$ of mass $2 kg$ and length $30 cm$ at rest on a smooth horizontal surface. An impulse of force $0.2 Ns$ is applied to end B. The time taken by the rod to turn through at right angles will be…
Physics · Rotational Motion · Numerical
Q90.A particular hydrogen-like ion emits the radiation of frequency $3 \times 1 0^{15} Hz$ when it makes transition from $n = 2$ to $n = 1$ . The frequency of radiation emitted in transition from $n = 3$ to $n = 1$ is $\frac{x}{9} \times 1 0^{15} Hz$ …
Physics · Atoms and Nuclei · Numerical