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Physics · 2024 · 1 Feb · Shift 1

30 questions from this JEE Main paper

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2024 · 1 Feb · Shift 1
Physics

Physics · 2024 · 1 Feb · Shift 1

30 questions from this JEE Main paper

Laws of Motion1 questions Gravitation1 questions Units and Measurements3 questions Heat and Thermodynamics2 questions Wave Optics1 questions Circular Motion2 questions Current Electricity3 questions Atoms and Nuclei2 questions Alternating Current2 questions Dual Nature of Radiation1 questions Capacitor1 questions Simple Harmonic Motion1 questions Properties of Matter2 questions Electronic Devices1 questions Electromagnetic Induction1 questions Electrostatics1 questions Motion in A Straight Line1 questions Magnetics1 questions Geometrical Optics1 questions Center of Mass1 questions Waves1 questions

Q61.Consider a block and trolley system as shown in figure. If the coefficient of kinetic friction between the trolley and the surface is 0.04 , the acceleration of the system in $ms^{- 2}$ is : (Consider that the string is massless… Includes diagram
Physics · Laws of Motion · MCQ
Q62.If $R$ is the radius of the earth and the acceleration due to gravity on the surface of earth is $g = π^{2} m / s^{2}$ , then the length of the second's pendulum at a height $h = 2 R$ from the surface of earth…
Physics · Gravitation · MCQ
Q63.10 divisions on the main scale of a Vernier calliper coincide with 11 divisions on the Vernier scale. If each division on the main scale is of 5 units, the least count of the instrument is :
Physics · Units and Measurements · MCQ
Q64.Two moles a monoatomic gas is mixed with six moles of a diatomic gas. The molar specific heat of the mixture at constant volume is :
Physics · Heat and Thermodynamics · MCQ
Q65.The dimensional formula of angular impulse is :
Physics · Units and Measurements · MCQ
Q66.A monochromatic light of wavelength $6000 \overset{˚}{A}$ is incident on the single slit of width $20 cm$ . If the diffraction pattern is formed at the focus of the convex lens of focal length $20 cm$ , the linear width…
Physics · Wave Optics · MCQ
Q67.A ball of mass $50 cm$ is attached to a string of length $400 N$ . The ball is rotated on a horizontal circular path about its vertical axis. The maximum tension that the string can bear is $400 N$ . The…
Physics · Circular Motion · MCQ
Q68.The reading in the ideal voltmeter $(V)$ shown in the given circuit diagram is : Includes diagram
Physics · Current Electricity · MCQ
Q69.A galvanometer has a resistance of $50 Ω$ and it allows maximum current of $100 V$ . It can be converted into voltmeter to measure upto $100 V$ by connecting in series a resistor of resistance :
Physics · Current Electricity · MCQ
Q70.The minimum energy required by a hydrogen atom in ground state to emit radiation in Balmer series is nearly :
Physics · Atoms and Nuclei · MCQ
Q71.A parallel plate capacitor has a capacitance $C = 200 pF$ . It is connected to $300 rad / s$ ac supply with an angular frequency $300 rad / s$ . The rms value of conduction current in the circuit and…
Physics · Alternating Current · MCQ
Q72.The de Broglie wavelengths of a proton and an $α$ particle are $λ$ and $2 λ$ respectively. The ratio of the velocities of proton and $α$ particle will be :
Physics · Dual Nature of Radiation · MCQ
Q73.The radius $(r)$ , length $(l)$ and resistance $(R)$ of a metal wire was measured in the laboratory as $r = (0.35 \pm 0.05) cm R = (100 \pm 10) ohm l = (15 \pm 0.2) cm$ …
Physics · Units and Measurements · MCQ
Q74.Two identical capacitors have same capacitance $C$ . One of them is charged to the potential $V$ and other to the potential $2 V$ . The negative ends of both are connected together. When the positive ends are also joined together,…
Physics · Capacitor · MCQ
Q75.A simple pendulum of length $1 kg$ has a wooden bob of mass $1 0^{- 2} kg$ . It is struck by a bullet of mass $1 0^{- 2} kg$ moving with a speed of $2 \times 1 0^{2} ms^{- 1}$ . The bullet gets embedded into the bob.…
Physics · Simple Harmonic Motion · MCQ
Q76.The pressure and volume of an ideal gas are related as $PV^{\frac{3}{2}} = K$ (Constant). The work done when the gas is taken from state $A (P_{1}, V_{1}, T_{1})$ to state $B (P_{2}, V_{2}, T_{2})$ is :
Physics · Heat and Thermodynamics · MCQ
Q77.In series LCR circuit, the capacitance is changed from $C$ to $4 C$ . To keep the resonance frequency unchanged, the new inductance should be:
Physics · Alternating Current · MCQ
Q78.A particle moving in a circle of radius $R$ with uniform speed takes time $T$ to complete one revolution. If this particle is projected with the same speed at an angle $θ$ to the horizontal, the maximum height…
Physics · Circular Motion · MCQ
Q79.With rise in temperature, the Young's modulus of elasticity :
Physics · Properties of Matter · MCQ
Q80.In the given circuit if the power rating of Zener diode is $R_{s}$ , the value of series resistance $R_{s}$ to regulate the input unregulated supply is : Includes diagram
Physics · Electronic Devices · MCQ
Q81.A rectangular loop of sides $5 cm$ and $x$ , with its sides parallel to the $x$ -axis and $y$ -axis respectively, moves with a velocity of $5 cm / s$ in the positive $x$ axis direction, in a space…
Physics · Electromagnetic Induction · Numerical
Q82.A plane is in level flight at constant speed and each of its two wings has an area of $40 m^{2}$ . If the speed of the air is $180 km / h$ over the lower wing surface and $252 km / h$ over the…
Physics · Properties of Matter · Numerical
Q83.Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle $θ$ with each other. When suspended in water the angle remains the same. If density of the material of the sphere is $1.5 g / cc$ …
Physics · Electrostatics · Numerical
Q84.A particle is moving in one dimension (along $x$ axis) under the action of a variable force. It's initial position was $(x)$ right of origin. The variation of its position $(x)$ with time $(t)$ is given as $x=-3 t^3+18 t^2+16…
Physics · Motion in A Straight Line · Numerical
Q85.The radius of a nucleus of mass number 64 is 4.8 fermi. Then the mass number of another nucleus having radius of 4 fermi is $\frac{1000}{x}$ , where $x$ is .
Physics · Atoms and Nuclei · Numerical
Q86.A regular polygon of 6 sides is formed by bending a wire of length $4 π$ meter. If an electric current of $4 π 3$ A is flowing through the sides of the polygon, the magnetic field at the centre of the polygon would be $x \times 1 0^{- 7} T$ …
Physics · Magnetics · Numerical
Q87.The distance between object and its 3 times magnified virtual image as produced by a convex lens is $cm$ . The focal length of the lens used is $cm$ .
Physics · Geometrical Optics · Numerical
Q88.Three identical spheres each of mass $2 M$ are placed at the corners of a right angled triangle with mutually perpendicular sides equal to $4 m$ each. Taking point of intersection of these two sides as origin, the…
Physics · Center of Mass · Numerical
Q89.A tuning fork resonates with a sonometer wire of length $6 N$ stretched with a tension of $54 N$ . When the tension in the wire is changed to $54 N$ , the same tuning fork produces 12 beats per second with it.…
Physics · Waves · Numerical
Q90.The current in a conductor is expressed as $I = 3 t^{2} + 4 t^{3}$ , where $I$ is in Ampere and $t$ is in second. The amount of electric charge that flows through a section of the conductor during $t = 1 s$ to $t = 2 s$ is …
Physics · Current Electricity · Numerical