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Physics · 2024 · 9 Apr · Shift 1

30 questions from this JEE Main paper

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2024 · 9 Apr · Shift 1
Physics

Physics · 2024 · 9 Apr · Shift 1

30 questions from this JEE Main paper

Electromagnetic Waves1 questions Current Electricity3 questions Units and Measurements2 questions Properties of Matter2 questions Heat and Thermodynamics2 questions Electronic Devices1 questions Work Power and Energy1 questions Magnetics2 questions Motion in A Straight Line1 questions Geometrical Optics1 questions Capacitor1 questions Laws of Motion2 questions Atoms and Nuclei2 questions Gravitation1 questions Alternating Current2 questions Dual Nature of Radiation1 questions Electrostatics1 questions Wave Optics1 questions Vector Algebra1 questions Simple Harmonic Motion1 questions Rotational Motion1 questions

Q61.A plane EM wave is propagating along $x$ direction. It has a wavelength of $4 mm$ . If electric field is in $y$ direction with the maximum magnitude of $60 Vm^{- 1}$ , the equation for magnetic field is :
Physics · Electromagnetic Waves · MCQ
Q62.A galvanometer has a coil of resistance $200Ω$ with a full scale deflection at $20 μ A$ . The value of resistance to be added to use it as an ammeter of range $(0 - 20) mA$ is :
Physics · Current Electricity · MCQ
Q63.The dimensional formula of latent heat is :
Physics · Units and Measurements · MCQ
Q64.A sphere of relative density $σ$ and diameter $D$ has concentric cavity of diameter $d$ . The ratio of $\frac{D}{d}$ , if it just floats on water in a tank is :
Physics · Properties of Matter · MCQ
Q65.The volume of an ideal gas $(γ = 1.5)$ is changed adiabatically from 5 litres to 4 litres. The ratio of initial pressure to final pressure is :
Physics · Heat and Thermodynamics · MCQ
Q66.A light emitting diode (LED) is fabricated using GaAs semiconducting material whose band gap is $1.42 eV$ . The wavelength of light emitted from the LED is :
Physics · Electronic Devices · MCQ
Q67.A particle of mass $m$ moves on a straight line with its velocity increasing with distance according to the equation $v = α x$ , where $α$ is a constant. The total work done by all the forces applied on the particle during…
Physics · Work Power and Energy · MCQ
Q68.Given below are two statements : Statement (I) : When currents vary with time, Newton's third law is valid only if momentum carried by the electromagnetic field is taken into account Statement (II) : Ampere's circuital law does not depend…
Physics · Magnetics · MCQ
Q69.A particle moving in a straight line covers half the distance with speed $6 m / s$ . The other half is covered in two equal time intervals with speeds $9 m / s$ and $15 m / s$ …
Physics · Motion in A Straight Line · MCQ
Q70.Given below are two statements : Statement (I) : When an object is placed at the centre of curvature of a concave lens, image is formed at the centre of curvature of the lens on the other side. Statement (II) : Concave lens always forms a…
Physics · Geometrical Optics · MCQ
Q71.A sample of 1 mole gas at temperature $T$ is adiabatically expanded to double its volume. If adiab constant for the gas is $γ = \frac{3}{2}$ , then the work done by the gas in the process is :
Physics · Heat and Thermodynamics · MCQ
Q72.A capacitor is made of a flat plate of area A and a second plate having a stair-like structure as shown in figure. If the area of each stair is $\frac{A}{3}$ and the height is $d$ , the capacitance of the arrangement is : Includes diagram
Physics · Capacitor · MCQ
Q73.One main scale division of a vernier caliper is equal to $m$ units. If $n^{th}$ division of main scale coincides with $(n + 1)^{th}$ division of vernier scale, the least count of the vernier caliper is :
Physics · Units and Measurements · MCQ
Q74.A heavy iron bar, of weight $W$ is having its one end on the ground and the other on the shoulder of a person. The bar makes an angle $θ$ with the horizontal. The weight experienced by the person is :
Physics · Laws of Motion · MCQ
Q75.A light unstretchable string passing over a smooth light pulley connects two blocks of masses $m_{1}$ and $m_{2}$ . If the acceleration of the system is $\frac{g}{8}$ , then the ratio of the masses $\frac{m _{2}}{m _{1}}$ is :
Physics · Laws of Motion · MCQ
Q76.The energy equivalent of $1 g$ of substance is :
Physics · Atoms and Nuclei · MCQ
Q77.The equivalent resistance between A and B is : Includes diagram
Physics · Current Electricity · MCQ
Q78.An astronaut takes a ball of mass $m$ from earth to space. He throws the ball into a circular orbit about earth at an altitude of $318.5 km$ . From earth's surface to the orbit, the change in total mechanical energy of the ball is…
Physics · Gravitation · MCQ
Q79.A bulb and a capacitor are connected in series across an ac supply. A dielectric is then placed between the plates of the capacitor. The glow of the bulb :
Physics · Alternating Current · MCQ
Q80.A proton, an electron and an alpha particle have the same energies. Their de-Broglie wavelengths will be compared as :
Physics · Dual Nature of Radiation · MCQ
Q81.A square loop of edge length $2 m$ carrying current of $2 A$ is placed with its edges parallel to the $x$ - $y$ axis. A magnetic field is passing through the $x$ - $y$ plane and expressed as $B = B_{0} (1 + 4 x) \hat{k}$ ,…
Physics · Magnetics · Numerical
Q82.At the centre of a half ring of radius $R = 10 cm$ and linear charge density $4 nC m^{- 1}$ , the potential is $x π V$ . The value of $x$ is .
Physics · Electrostatics · Numerical
Q83.In a Young's double slit experiment, the intensity at a point is $(\frac{1}{4})^{th}$ of the maximum intensity, the minimum distance of the point from the central maximum is $μ m$ .…
Physics · Wave Optics · Numerical
Q84.If $a$ and $b$ makes an angle $cos^{- 1} (\frac{5}{9})$ with each other, then $∣ a + b ∣ = 2 ∣ a - b ∣$ for $∣ a ∣ = n ∣ b ∣$ The integer value of $n$ is .
Physics · Vector Algebra · Numerical
Q85.Two persons pull a wire towards themselves. Each person exerts a force of $200 N$ on the wire. Young's modulus of the material of wire is $1 \times 1 0^{11} N m^{- 2}$ . Original length of the wire is $2 m$ …
Physics · Properties of Matter · Numerical
Q86.The position, velocity and acceleration of a particle executing simple harmonic motion are found to have magnitudes of $4 m, 2 ms^{- 1}$ and $16 ms^{- 2}$ at a certain instant. The amplitude of the motion is $x, m$ …
Physics · Simple Harmonic Motion · Numerical
Q87.A star has $100%$ helium composition. It starts to convert three $^{4} He$ into one $^{12} C$ via triple alpha process as $^{4} He +^{4} He +^{4} He \to^{12} C + Q$ …
Physics · Atoms and Nuclei · Numerical
Q88.A string is wrapped around the rim of a wheel of moment of inertia $0.40 kgm^{2}$ and radius $10 cm$ . The wheel is free to rotate about its axis. Initially the wheel is at rest. The string is now pulled by a force of $40 N$ …
Physics · Rotational Motion · Numerical
Q89.When a coil is connected across a $20 V$ dc supply, it draws a current of $5 A$ . When it is connected across $20 V, 50 Hz$ ac supply, it draws a current of $4 A$ . The self inductance of the…
Physics · Alternating Current · Numerical
Q90.The current flowing through the $1Ω$ resistor is $\frac{n}{10}$ A. The value of $n$ is . Includes diagram
Physics · Current Electricity · Numerical