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Physics · 2023 · 1 Feb · Shift 1

28 questions from this JEE Main paper

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2023 · 1 Feb · Shift 1
Physics

Physics · 2023 · 1 Feb · Shift 1

28 questions from this JEE Main paper

Electrostatics2 questions Wave Optics1 questions Alternating Current2 questions Electronic Devices1 questions Magnetics2 questions Current Electricity1 questions Gravitation2 questions Waves1 questions Motion in A Straight Line1 questions Motion in A Plane1 questions Dual Nature of Radiation1 questions Heat and Thermodynamics3 questions Laws of Motion1 questions Electromagnetic Waves1 questions Atoms and Nuclei2 questions Properties of Matter2 questions Geometrical Optics1 questions Work Power and Energy1 questions Rotational Motion1 questions Simple Harmonic Motion1 questions

Q44.Let $σ$ be the uniform surface charge density of two infinite thin plane sheets shown in figure. Then the electric fields in three different region $E_{I}, E_{I I}$ and $E_{I I I}$ are: Includes diagram
Physics · Electrostatics · MCQ
Q45.' $n$ ' polarizing sheets are arranged such that each makes an angle $4 5^{\circ}$ with the preceeding sheet. An unpolarized light of intensity I is incident into this arrangement. The output intensity is found to be $I /64$ . The value of…
Physics · Wave Optics · MCQ
Q46.Match List - I with List - II : Choose the correct answer from the options given below : Includes table
Physics · Alternating Current · MCQ
Q47.Match List I with List II: Choose the correct answer from the options given below : Includes table
Physics · Electronic Devices · MCQ
Q48.Find the magnetic field at the point $P$ in figure. The curved portion is a semicircle connected to two long straight wires. Includes diagram
Physics · Magnetics · MCQ
Q49.The equivalent resistance between $A$ and $B$ of the network shown in figure; Includes diagram
Physics · Current Electricity · MCQ
Q50.If earth has a mass nine times and radius twice to that of a planet P. Then $\frac{v _{e}}{3} x ms^{- 1}$ will be the minimum velocity required by a rocket to pull out of gravitational force of $P$ , where $v_{e}$ is…
Physics · Gravitation · MCQ
Q51.A steel wire with mass per unit length $7.0 \times 1 0^{- 3} kg m^{- 1}$ is under tension of $70 N$ . The speed of transverse waves in the wire will be:
Physics · Waves · MCQ
Q52.An object moves with speed $v_{1}, v_{2}$ and $v_{3}$ along a line segment AB, BC and CD respectively as shown in figure. Where AB = BC and AD = 3AB, then average speed of the object will be: Includes diagram
Physics · Motion in A Straight Line · MCQ
Q53.A child stands on the edge of the cliff $10 m$ above the ground and throws a stone horizontally with an initial speed of $5 ms^{- 1}$ . Neglecting the air resistance, the speed with which the stone hits the ground will be…
Physics · Motion in A Plane · MCQ
Q54.A proton moving with one tenth of velocity of light has a certain de Broglie wavelength of $λ$ . An alpha particle having certain kinetic energy has the same de-Brogle wavelength $λ$ . The ratio of kinetic energy of proton and…
Physics · Dual Nature of Radiation · MCQ
Q55.Given below are two statements: Statement I: Acceleration due to gravity is different at different places on the surface of earth. Statement II: Acceleration due to gravity increases as we go down below the earth's surface. In the light of…
Physics · Gravitation · MCQ
Q56.A sample of gas at temperature $T$ is adiabatically expanded to double its volume. The work done by the gas in the process is $(given, γ = \frac{3}{2})$ :
Physics · Heat and Thermodynamics · MCQ
Q57.A block of mass $5 kg$ is placed at rest on a table of rough surface. Now, if a force of $30 N$ is applied in the direction parallel to surface of the table, the block slides through a distance of $50 m$ in an…
Physics · Laws of Motion · MCQ
Q58.Match List I with List II : Choose the correct answer from the options given below : Includes table
Physics · Electromagnetic Waves · MCQ
Q59.The mass of proton, neutron and helium nucleus are respectively $1.0073 u, 1.0087 u$ and $4.0015 u$ . The binding energy of helium nucleus is :
Physics · Atoms and Nuclei · MCQ
Q60. $(P + \frac{a}{V ^{2}}) (V - b) = R T$ represents the equation of state of some gases. Where $P$ is the pressure, $V$ is the volume, $T$ is the temperature and $a, b, R$ are the constants. The physical quantity, which has dimensional…
Physics · Heat and Thermodynamics · MCQ
Q61.The average kinetic energy of a molecule of the gas is
Physics · Heat and Thermodynamics · MCQ
Q62.A mercury drop of radius $1 0^{- 3} m$ is broken into 125 equal size droplets. Surface tension of mercury is $0.45 Nm^{- 1}$ . The gain in surface energy is :
Physics · Properties of Matter · MCQ
Q63.Two equal positive point charges are separated by a distance $2 a$ . The distance of a point from the centre of the line joining two charges on the equatorial line (perpendicular bisector) at which force experienced by a test charge $q_{0}$ …
Physics · Electrostatics · Numerical
Q64.A charge particle of $2 μ C$ accelerated by a potential difference of $100 V$ enters a region of uniform magnetic field of magnitude $4 mT$ at right angle to the direction of field. The charge particle…
Physics · Magnetics · Numerical
Q65.A light of energy $12.75 eV$ is incident on a hydrogen atom in its ground state. The atom absorbs the radiation and reaches to one of its excited states. The angular momentum of the atom in the excited state is $\frac{x}{π} \times 1 0^{- 17} eVs$ …
Physics · Atoms and Nuclei · Numerical
Q66.A thin cylindrical rod of length $10 cm$ is placed horizontally on the principle axis of a concave mirror of focal length $20 cm$ . The rod is placed in a such a way that mid point of the rod is at $40 cm$ from…
Physics · Geometrical Optics · Numerical
Q67.A small particle moves to position $5 \hat{i} - 2 \hat{j} + \hat{k}$ from its initial position $2 \hat{i} + 3 \hat{j} - 4 \hat{k}$ under the action of force $5 \hat{i} + 2 \hat{j} + 7 \hat{k} N$ . The value of work done will be …
Physics · Work Power and Energy · Numerical
Q68.A series LCR circuit is connected to an ac source of $220 V, 50 Hz$ . The circuit contain a resistance $R = 100 Ω$ and an inductor of inductive reactance $X_{L} = 79.6 Ω$ . The…
Physics · Alternating Current · Numerical
Q69.A solid cylinder is released from rest from the top of an inclined plane of inclination $3 0^{\circ}$ and length $60 cm$ . If the cylinder rolls without slipping, its speed upon reaching the bottom of the inclined plane is $ms^{- 1}$ … Includes diagram
Physics · Rotational Motion · Numerical
Q70.The amplitude of a particle executing SHM is $3 cm$ . The displacement at which its kinetic energy will be $25%$ more than the potential energy is: $cm$
Physics · Simple Harmonic Motion · Numerical
Q71.A certain pressure ' $P$ ' is applied to 1 litre of water and 2 litre of a liquid separately. Water gets compressed to $0.01%$ whereas the liquid gets compressed to $0.03%$ . The ratio of Bulk modulus of water to that of the…
Physics · Properties of Matter · Numerical