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Physics · 2024 · 4 Apr · Shift 1

30 questions from this JEE Main paper

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2024 · 4 Apr · Shift 1
Physics

Physics · 2024 · 4 Apr · Shift 1

30 questions from this JEE Main paper

Electrostatics2 questions Magnetics2 questions Gravitation1 questions Geometrical Optics2 questions Properties of Matter3 questions Work Power and Energy1 questions Alternating Current2 questions Atoms and Nuclei2 questions Motion in A Straight Line1 questions Motion in A Plane1 questions Units and Measurements1 questions Dual Nature of Radiation1 questions Heat and Thermodynamics3 questions Electromagnetic Waves1 questions Electronic Devices1 questions Laws of Motion2 questions Current Electricity2 questions Rotational Motion1 questions Wave Optics1 questions

Q61.An infinitely long positively charged straight thread has a linear charge density $λ Cm^{- 1}$ . An electron revolves along a circular path having axis along the length of the wire. The graph that correctly represents the…
Physics · Electrostatics · MCQ
Q62.An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then :
Physics · Magnetics · MCQ
Q63.A metal wire of uniform mass density having length $L$ and mass $M$ is bent to form a semicircular arc and a particle of mass $m$ is placed at the centre of the arc. The gravitational force on the particle by the wire is :
Physics · Gravitation · MCQ
Q64.An effective power of a combination of 5 identical convex lenses which are kept in contact along the principal axis is $25 D$ . Focal length of each of the convex lens is:
Physics · Geometrical Optics · MCQ
Q65.Given below are two statements : Statement I : When speed of liquid is zero everywhere, pressure difference at any two points depends on equation $P_{1} - P_{2} = ρ g (h_{2} - h_{1})$ . Statement II :… Includes diagram
Physics · Properties of Matter · MCQ
Q66.If a rubber ball falls from a height $h$ and rebounds upto the height of $h /2$ . The percentage loss of total energy of the initial system as well as velocity ball before it strikes the ground, respectively, are :
Physics · Work Power and Energy · MCQ
Q67.In an ac circuit, the instantaneous current is zero, when the instantaneous voltage is maximum. In this case, the source may be connected to : A. pure inductor. B. pure capacitor. C. pure resistor. D. combination of an inductor and…
Physics · Alternating Current · MCQ
Q68.Which of the following nuclear fragments corresponding to nuclear fission between neutron $(_{0}^{1} n)$ and uranium isotope $(_{92}^{235} U)$ is correct :
Physics · Atoms and Nuclei · MCQ
Q69.A body travels $n^{th}$ in $n^{th}$ second and $(n + 2)^{th}$ in $(n + 2)^{th}$ second. The acceleration is :
Physics · Motion in A Straight Line · MCQ
Q70.In an experiment to measure focal length ( $f$ ) of convex lens, the least counts of the measuring scales for the position of object (u) and for the position of image (v) are $Δ u$ and $Δ v$ , respectively. The error in the…
Physics · Geometrical Optics · MCQ
Q71.The co-ordinates of a particle moving in $x$ - $y$ plane are given by : $x = 2 + 4 t, y = 3 t + 8 t^{2}$ . The motion of the particle is :
Physics · Motion in A Plane · MCQ
Q72.The equation of stationary wave is : $y = 2 a sin (\frac{2 π nt}{λ}) cos (\frac{2 π x}{λ}) .$ Which of the following is NOT correct :
Physics · Units and Measurements · MCQ
Q73.Which figure shows the correct variation of applied potential difference (V) with photoelectric current (I) at two different intensities of light $(I_{1} < I_{2})$ of same wavelengths :
Physics · Dual Nature of Radiation · MCQ
Q74.P-T diagram of an ideal gas having three different densities $ρ_{1}, ρ_{2}, ρ_{3}$ (in three different cases) is shown in the figure. Which of the following is correct : Includes diagram
Physics · Heat and Thermodynamics · MCQ
Q75.The electric field in an electromagnetic wave is given by $E = \hat{i} 40 cos ω (t - z / c) NC^{- 1}$ . The magnetic field induction of this wave is (in SI unit) :
Physics · Electromagnetic Waves · MCQ
Q76.The resistances of the platinum wire of a platinum resistance thermometer at the ice point and steam point are $8Ω$ and $10Ω$ respectively. After inserting in a hot bath of temperature $40 0^{\circ} C$ , the resistance…
Physics · Heat and Thermodynamics · MCQ
Q77.The value of net resistance of the network as shown in the given figure is : Includes diagram
Physics · Electronic Devices · MCQ
Q78.A wooden block, initially at rest on the ground, is pushed by a force which increases linearly with time $t$ . Which of the following curve best describes acceleration of the block with time :
Physics · Laws of Motion · MCQ
Q79.To measure the internal resistance of a battery, potentiometer is used. For $R = 10Ω$ , the balance point is observed at $l = 500 cm$ and for $R = 1Ω$ the balance point is observed at $l = 400 cm$ . The…
Physics · Current Electricity · MCQ
Q80.On celcius scale the temperature of body increases by $4 0^{\circ} C$ . The increase in temperature on Fahrenheit scale is :
Physics · Heat and Thermodynamics · MCQ
Q81.A solid sphere and a hollow cylinder roll up without slipping on same inclined plane with same initial speed $v$ . The sphere and the cylinder reaches upto maximum heights $h_{1}$ and $h_{2}$ respectively, above the initial level. The ratio $h_{1} : h_{2}$ …
Physics · Rotational Motion · Numerical
Q82.An infinite plane sheet of charge having uniform surface charge density $+ σ_{s} C / m^{2}$ is placed on $x$ - $y$ plane. Another infinitely long line charge having uniform linear charge density $+ λ_{e} C / m$ …
Physics · Electrostatics · Numerical
Q83.A hydrogen atom changes its state from $n = 3$ to $n = 2$ . Due to recoil, the percentage change in the wave length of emitted light is approximately $1 \times 1 0^{- n}$ . The value of $n$ is . [Given Rhc $= 13.6 eV, hc = 1242 eV nm, h = 6.6 \times 1 0^{- 34} J s$ …
Physics · Atoms and Nuclei · Numerical
Q84.A soap bubble is blown to a diameter of $36960 erg$ . $cm$ of work is done in blowing it further. If surface tension of soap solution is 40 dyne/ $cm$ then the new radius is cm Take $(π = \frac{22}{7})$ …
Physics · Properties of Matter · Numerical
Q85.An elastic spring under tension of $a$ has a length $a$ . Its length is $b$ under tension $(3 a - 2 b)$ . For its length $(3 a - 2 b)$ , the value of tension will be N.
Physics · Properties of Matter · Numerical
Q86.The magnetic field existing in a region is given by $B = 0.2 (1 + 2 x) \hat{k}$ . A square loop of edge $x$ carrying 0.5 A current is placed in $x$ - $y$ plane with its edges parallel to the $x$ - $y$ axes, as shown in figure.… Includes diagram
Physics · Magnetics · Numerical
Q87.Two forces $\overline{F}_{1}$ and $\overline{F}_{2}$ are acting on a body. One force has magnitude thrice that of the other force and the resultant of the two forces is equal to the force of larger magnitude. The angle…
Physics · Laws of Motion · Numerical
Q88.A alternating current at any instant is given by $i = [6 + 56 sin (100 π t + π /3)]$ A. The $r m s$ value of the current is A.
Physics · Alternating Current · Numerical
Q89.Twelve wires each having resistance $2Ω$ are joined to form a cube. A battery of $a$ emf is joined across point $a$ and $c$ . The voltage difference between $e$ and $f$ is V. Includes diagram
Physics · Current Electricity · Numerical
Q90.Two wavelengths $λ_{1}$ and $λ_{2}$ are used in Young's double slit experiment. $λ_{1} = 450 nm$ and $λ_{2} = 650 nm$ . The minimum order of fringe produced by $λ_{2}$ which overlaps with the fringe…
Physics · Wave Optics · Numerical