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Physics · 2024 · 6 Apr · Shift 1

30 questions from this JEE Main paper

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2024 · 6 Apr · Shift 1
Physics

Physics · 2024 · 6 Apr · Shift 1

30 questions from this JEE Main paper

Work Power and Energy2 questions Heat and Thermodynamics2 questions Electronic Devices1 questions Electromagnetic Waves1 questions Units and Measurements3 questions Current Electricity2 questions Laws of Motion1 questions Gravitation2 questions Dual Nature of Radiation2 questions Alternating Current2 questions Electrostatics2 questions Magnetics2 questions Properties of Matter2 questions Motion in A Straight Line1 questions Atoms and Nuclei2 questions Simple Harmonic Motion1 questions Vector Algebra1 questions Geometrical Optics1 questions

Q61.A bullet of mass $50 g$ is fired with a speed $100 m / s$ on a plywood and emerges with $40 m / s$ . The percentage loss of kinetic energy is :
Physics · Work Power and Energy · MCQ
Q62.The specific heat at constant pressure of a real gas obeying $P V^{2} = R T$ equation is:
Physics · Heat and Thermodynamics · MCQ
Q63.The correct truth table for the following logic circuit is : Includes diagram
Physics · Electronic Devices · MCQ
Q64.Electromagnetic waves travel in a medium with speed of $1.5 \times 1 0^{8} m s^{- 1}$ . The relative permeability of the medium is 2.0. The relative permittivity will be:
Physics · Electromagnetic Waves · MCQ
Q65.To find the spring constant $(k)$ of a spring experimentally, a student commits $2%$ positive error in the measurement of time and $1%$ negative error in measurement of mass. The percentage error in determining value of $k$ is :
Physics · Units and Measurements · MCQ
Q66.The value of unknown resistance $(x)$ for which the potential difference between $B$ and $D$ will be zero in the arrangement shown, is : Includes diagram
Physics · Current Electricity · MCQ
Q67.A light string passing over a smooth light pulley connects two blocks of masses $m_{1}$ and $m_{2} ($ where $m_{2} > m_{1})$ . If the acceleration of the system is $\frac{g}{2}$ , then the ratio of the masses $\frac{m _{1}}{m _{2}}$ …
Physics · Laws of Motion · MCQ
Q68.To project a body of mass $m$ from earth's surface to infinity, the required kinetic energy is (assume, the radius of earth is $R_{E}, g =$ acceleration due to gravity on the surface of earth):
Physics · Gravitation · MCQ
Q69.Match List I with List II Choose the correct answer from the options given below: Includes table
Physics · Units and Measurements · MCQ
Q70.Which of the following phenomena does not explain by wave nature of light. A. reflection B. diffraction C. photoelectric effect D. interference E. polarization Choose the most appropriate answer from the options given below:
Physics · Dual Nature of Radiation · MCQ
Q71.Four particles $A, B, C, D$ of mass $\frac{m}{2}, m, 2 m, 4 m$ , have same momentum, respectively. The particle with maximum kinetic energy is :
Physics · Work Power and Energy · MCQ
Q72.In photoelectric experiment energy of $2.48 eV$ irradiates a photo sensitive material. The stopping potential was measured to be $0.5 V$ . Work function of the photo sensitive material is :
Physics · Dual Nature of Radiation · MCQ
Q73.While measuring diameter of wire using screw gauge the following readings were noted. Main scale reading is $1 mm$ and circular scale reading is equal to 42 divisions. Pitch of screw gauge is $1 mm$ and it has 100…
Physics · Units and Measurements · MCQ
Q74.Given below are two statements : Statement I : In an LCR series circuit, current is maximum at resonance. Statement II : Current in a purely resistive circuit can never be less than that in a series LCR circuit when connected to same…
Physics · Alternating Current · MCQ
Q75. $σ$ is the uniform surface charge density of a thin spherical shell of radius R. The electric field at any point on the surface of the spherical shell is :
Physics · Electrostatics · MCQ
Q76.An element $Δ l = Δ x \hat{i}$ is placed at the origin and carries a large current $I = 10 A$ . The magnetic field on the $y$ -axis at a distance of $0.5 m$ from the elements $Δ x$ of $1 cm$ length is: Includes diagram
Physics · Magnetics · MCQ
Q77.A small ball of mass $m$ and density $ρ$ is dropped in a viscous liquid of density $ρ_{0}$ . After sometime, the ball falls with constant velocity. The viscous force on the ball is :
Physics · Properties of Matter · MCQ
Q78.A train starting from rest first accelerates uniformly up to a speed of $80 km / h$ for time $t$ , then it moves with a constant speed for time $3 t$ . The average speed of the train for this duration of journey will be…
Physics · Motion in A Straight Line · MCQ
Q79.A sample contains mixture of helium and oxygen gas. The ratio of root mean square speed of helium and oxygen in the sample, is :
Physics · Heat and Thermodynamics · MCQ
Q80.The ratio of the shortest wavelength of Balmer series to the shortest wavelength of Lyman series for hydrogen atom is :
Physics · Atoms and Nuclei · MCQ
Q81.A big drop is formed by coalescing 1000 small droplets of water. The ratio of surface energy of 1000 droplets to that of energy of big drop is $\frac{10}{x}$ . The value of $x$ is .
Physics · Properties of Matter · Numerical
Q82.If the radius of earth is reduced to three-fourth of its present value without change in its mass then value of duration of the day of earth will be hours 30 minutes.
Physics · Gravitation · Numerical
Q83.A particle is doing simple harmonic motion of amplitude $0.06 m$ and time period $3.14 s$ . The maximum velocity of the particle is $cm / s$ .
Physics · Simple Harmonic Motion · Numerical
Q84.Three infinitely long charged thin sheets are placed as shown in figure. The magnitude of electric field at the point $P$ is $\frac{x σ}{ϵ _{0}}$ . The value of $x$ is (all quantities are measured in SI… Includes diagram
Physics · Electrostatics · Numerical
Q85.Radius of a certain orbit of hydrogen atom is 8.48 $A o$ . If energy of electron in this orbit is $E / x$ . then $x =$ (Given $a_{0} = 0.529 A o$ , $E =$ energy of electron in ground…
Physics · Atoms and Nuclei · Numerical
Q86.For three vectors $A = (- x \hat{i} - 6 \hat{j} - 2 \hat{k}), B = (- \hat{i} + 4 \hat{j} + 3 \hat{k})$ and $C = (- 8 \hat{i} - \hat{j} + 3 \hat{k})$ , if $A \cdot (B \times C) = 0$ , then value of $x$ is …
Physics · Vector Algebra · Numerical
Q87.The refractive index of prism is $μ = 3$ and the ratio of the angle of minimum deviation to the angle of prism is one. The value of angle of prism is $^{\circ}$ .
Physics · Geometrical Optics · Numerical
Q88.A wire of resistance $R$ and radius $r$ is stretched till its radius became $r /2$ . If new resistance of the stretched wire is $x R$ , then value of $x$ is .
Physics · Current Electricity · Numerical
Q89.When a $d c$ voltage of $100 V$ is applied to an inductor, a $d c$ current of $5 A$ flows through it. When an ac voltage of $200 V$ peak value is connected to inductor, its inductive reactance is found to be $203 Ω$ …
Physics · Alternating Current · Numerical
Q90.A circular coil having 200 turns, $2.5 \times 1 0^{- 4} m^{2}$ area and carrying $100 μ A$ current is placed in a uniform magnetic field of $1 T$ . Initially the magnetic dipole moment $(M)$ was directed…
Physics · Magnetics · Numerical