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Physics · 2024 · 8 Apr · Shift 1

30 questions from this JEE Main paper

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2024 · 8 Apr · Shift 1
Physics

Physics · 2024 · 8 Apr · Shift 1

30 questions from this JEE Main paper

Center of Mass2 questions Electrostatics2 questions Gravitation1 questions Electromagnetic Waves1 questions Units and Measurements2 questions Circular Motion1 questions Electronic Devices1 questions Laws of Motion1 questions Work Power and Energy1 questions Properties of Matter3 questions Magnetic Properties of Matter1 questions Heat and Thermodynamics2 questions Alternating Current1 questions Geometrical Optics1 questions Dual Nature of Radiation1 questions Atoms and Nuclei2 questions Current Electricity2 questions Waves1 questions Vector Algebra1 questions Magnetics2 questions Wave Optics1 questions

Q61.A stationary particle breaks into two parts of masses $m_{A}$ and $m_{B}$ which move with velocities $v_{A}$ and $v_{B}$ respectively. The ratio of their kinetic energies $(K_{B} : K_{A})$ is :
Physics · Center of Mass · MCQ
Q62.Two charged conducting spheres of radii $a$ and $b$ are connected to each other by a conducting wire. The ratio of charges of the two spheres respectively is:
Physics · Electrostatics · MCQ
Q63.Two planets $A$ and $B$ having masses $m_{1}$ and $m_{2}$ move around the sun in circular orbits of $r_{1}$ and $r_{2}$ radii respectively. If angular momentum of $A$ is $L$ and that of $B$ is $(\frac{T _{A}}{T _{B}})$ , the ratio of time period $(\frac{T _{A}}{T _{B}})$ …
Physics · Gravitation · MCQ
Q64.Average force exerted on a non-reflecting surface at normal incidence is $2.4 \times 1 0^{- 4} N$ . If $360 W / cm^{2}$ is the light energy flux during span of 1 hour 30 minutes, Then the area of the surface is:
Physics · Electromagnetic Waves · MCQ
Q65.In an expression $a \times 1 0^{b}$ :
Physics · Units and Measurements · MCQ
Q66.A clock has $75 cm, 60 cm$ long second hand and minute hand respectively. In 30 minutes duration the tip of second hand will travel $x$ distance more than the tip of minute hand. The value of $x$ in meter is nearly…
Physics · Circular Motion · MCQ
Q67.The output $Y$ of following circuit for given inputs is : Includes diagram
Physics · Electronic Devices · MCQ
Q68.A player caught a cricket ball of mass $20 m / s$ moving at a speed of $20 m / s$ . If the catching process is completed in $0.1 s$ , the magnitude of force exerted by the ball on the hand of the player is:
Physics · Laws of Motion · MCQ
Q69.Three bodies A, B and C have equal kinetic energies and their masses are $400 g, 1.2 kg$ and $1.6 kg$ respectively. The ratio of their linear momenta is :
Physics · Work Power and Energy · MCQ
Q70.Young's modulus is determined by the equation given by $Y = 49000 \frac{m}{l} \frac{dyne}{cm ^{2}}$ where $M$ is the mass and $l$ is the extension of wire used in the experiment. Now error in Young…
Physics · Properties of Matter · MCQ
Q71.Paramagnetic substances: A. align themselves along the directions of external magnetic field. B. attract strongly towards external magnetic field. C. has susceptibility little more than zero. D. move from a region of strong magnetic field…
Physics · Magnetic Properties of Matter · MCQ
Q72.A mixture of one mole of monoatomic gas and one mole of a diatomic gas (rigid) are kept at room temperature $(2 7^{\circ} C)$ . The ratio of specific heat of gases at constant volume respectively is:
Physics · Heat and Thermodynamics · MCQ
Q73.A LCR circuit is at resonance for a capacitor C, inductance L and resistance R. Now the value of resistance is halved keeping all other parameters same. The current amplitude at resonance will be now:
Physics · Alternating Current · MCQ
Q74.The diameter of a sphere is measured using a vernier caliper whose 9 divisions of main scale are equal to 10 divisions of vernier scale. The shortest division on the main scale is equal to $2 cm$ . The main scale reading is $2 cm$ …
Physics · Units and Measurements · MCQ
Q75.Critical angle of incidence for a pair of optical media is $4 5^{\circ}$ . The refractive indices of first and second media are in the ratio:
Physics · Geometrical Optics · MCQ
Q76.A proton and an electron are associated with same de-Broglie wavelength. The ratio of their kinetic energies is: (Assume h = 6.63 $\times 1 0^{- 34} J s, m_{e} = 9.0 \times 1 0^{- 31} kg$ and $m_{p} = 1836$ …
Physics · Dual Nature of Radiation · MCQ
Q77.Correct Bernoulli's equation is (symbols have their usual meaning) :
Physics · Properties of Matter · MCQ
Q78.Binding energy of a certain nucleus is $18 \times 1 0^{8} J$ . How much is the difference between total mass of all the nucleons and nuclear mass of the given nucleus:
Physics · Atoms and Nuclei · MCQ
Q79.In the given circuit, the terminal potential difference of the cell is : Includes diagram
Physics · Current Electricity · MCQ
Q80.Two different adiabatic paths for the same gas intersect two isothermal curves as shown in P-V diagram. The relation between the ratio $\frac{V _{a}}{V _{d}}$ and the ratio $\frac{V _{b}}{V _{c}}$ is: Includes diagram
Physics · Heat and Thermodynamics · MCQ
Q81.A closed and an open organ pipe have same lengths. If the ratio of frequencies of their seventh overtones is $(\frac{a - 1}{a})$ then the value of $a$ is .
Physics · Waves · Numerical
Q82.An electric field, $E = \frac{2 i ^ + 6 j ^ + 8 k ^}{6}$ passes through the surface of $4 m^{2}$ area having unit vector $\overset{n}{^} = (\frac{2 i ^ + j ^ + k ^}{6})$ .…
Physics · Electrostatics · Numerical
Q83.Three vectors $OP, OQ$ and $OR$ each of magnitude $A$ are acting as shown in figure. The resultant of the three vectors is $A x$ . The… Includes diagram
Physics · Vector Algebra · Numerical
Q84.A square loop PQRS having 10 turns, area $3.6 \times 1 0^{- 3} m^{2}$ and resistance $100Ω$ is slowly and uniformly being pulled out of a uniform magnetic field of magnitude $B = 0.5 T$ as shown. Work done in… Includes diagram
Physics · Magnetics · Numerical
Q85.A liquid column of height $8 \times 1 0^{3} kg m^{- 3}$ balances excess pressure of a soap bubble of certain radius. If density of liquid is $8 \times 1 0^{3} kg m^{- 3}$ and surface tension of soap solution is $0.28 Nm^{- 1}$ …
Physics · Properties of Matter · Numerical
Q86.A uniform thin metal plate of mass $x$ with dimensions is shown. The ratio of $x$ and y coordinates of center of mass of plate in $\frac{n}{9}$ . The value of $n$ is . Includes diagram
Physics · Center of Mass · Numerical
Q87.Resistance of a wire at $0^{\circ} C, 10 0^{\circ} C$ and $t^{\circ} C$ is found to be $10.95Ω$ and $10.95Ω$ respectively. The temperature $t$ in Kelvin scale is .
Physics · Current Electricity · Numerical
Q88.A parallel beam of monochromatic light of wavelength $0.4 mm$ passes through single slit of width. Angular divergence corresponding to second order minima would be $\times 1 0^{- 3} rad$ …
Physics · Wave Optics · Numerical
Q89.An electron with kinetic energy $μ T$ enters a region of uniform magnetic field of 3 $μ T$ perpendicular to its direction. An electric field $E$ is applied perpendicular to the direction of velocity and…
Physics · Magnetics · Numerical
Q90.In an alpha particle scattering experiment distance of closest approach for the $α$ particle is $4.5 \times 1 0^{- 14} m$ . If target nucleus has atomic number 80 , then maximum velocity of $α$ -particle is $\times 1 0^{5} m / s$ …
Physics · Atoms and Nuclei · Numerical