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If the distance of the earth from sun is 1.5 × 106 km. Then the distance of an imaginary planet from Sun, if its period of revolution is 2.83 years is :
If the distance of the earth from sun is 1.5 × 106 km. Then the distance of an imaginary planet from Sun, if its period of revolution is 2.83 years is :
Let y1 be the ratio of molar specific heat at constant pressure and molar specific heat at constant volume of a monoatomic gas and y2 be the similar ratio of diatomic gas. Considering the diatomic gas molecule as a rigid rotator, the ratio, y1/y2 is:
Let y1 be the ratio of molar specific heat at constant pressure and molar specific heat at constant volume of a monoatomic gas and y2 be the similar ratio of diatomic gas. Considering the diatomic gas molecule as a rigid rotator, the ratio, y1/y2 is:
Given below are two statements: one is labelled as Assertion A and other is labelled as Reason R
Assertion A: Steel is used in the construction of buildings and bridges.
Reason R: Steel is more elastic and its elastic limit is high.
Given below are two statements: one is labelled as Assertion A and other is labelled as Reason R Assertion A: Steel is used in the construction of buildings and bridges. Reason R: Steel is more elastic and its elastic limit is high.
When a beam of white light is allowed to pass through convex lens parallel to principal axis, the different colours of light converge at different point on the principle axis after refraction. This is called:
When a beam of white light is allowed to pass through convex lens parallel to principal axis, the different colours of light converge at different point on the principle axis after refraction. This is called:
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In an Isothermal change, the change in pressure and volume of a gas can be represented for three different temperature : T3 > T2 > T1 as:
In an Isothermal change, the change in pressure and volume of a gas can be represented for three different temperature : T3 > T2 > T1 as:
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An metallic rod of length 'L' is rotated with an angular speed of 'ω' normal to a uniform magnetic field 'B' about an axis passing through one end of rod as shown in figure. The induced emf will be:
An metallic rod of length 'L' is rotated with an angular speed of 'ω' normal to a uniform magnetic field 'B' about an axis passing through one end of rod as shown in figure. The induced emf will be:
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If two vectors P = i + 2mj + mk and Q = 4î - 2j + mk are perpendicular to each other. Then, the value of m will be:
If two vectors P = i + 2mj + mk and Q = 4î - 2j + mk are perpendicular to each other. Then, the value of m will be:
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Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: A pendulum clock when taken to Mount Everest becomes fast.
Reason R: The value of g (acceleration due to gravity) is less at Mount Everest than its value on the surface of earth.
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: A pendulum clock when taken to Mount Everest becomes fast. Reason R: The value of g (acceleration due to gravity) is less at Mount Everest than its value on the surface of earth.
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An a-particle, a proton and an electron have the same kinetic energy. Which one of the following is correct in case of their de-Broglie wavelength:
An a-particle, a proton and an electron have the same kinetic energy. Which one of the following is correct in case of their de-Broglie wavelength:
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The logic gate equivalent to the given circuit diagram is:
The logic gate equivalent to the given circuit diagram is:
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The electric potential at the centre of two concentric half rings of radii R1 and R2, having same linear charge density is:
The electric potential at the centre of two concentric half rings of radii R1 and R2, having same linear charge density is:
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A cell of emf 90V is connected across series combination of two resistors each of 100Ω resistance. A voltmeter of resistance 400 Ω is used to measure the potential difference across each resistor. The reading of the voltmeter will be:
A cell of emf 90V is connected across series combination of two resistors each of 100Ω resistance. A voltmeter of resistance 400 Ω is used to measure the potential difference across each resistor. The reading of the voltmeter will be:
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A body of mass 200g is tied to a spring constant 12.5 N/m, while the other end of spring is fixed at point O. If the body moves about O in a circular path on a smooth horizontal surface with constant angular speed 5 rad/s. Then the ratio of extension in the spring to its natural length will be:
A body of mass 200g is tied to a spring constant 12.5 N/m, while the other end of spring is fixed at point O. If the body moves about O in a circular path on a smooth horizontal surface with constant angular speed 5 rad/s. Then the ratio of extension in the spring to its natural length will be:
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The frequency (ν) of an oscillating liquid drop may depend upon radius (r) of the drop, density (ρ) of liquid and the surface tension (σ) of the liquid as : ν = ra ρb σc. The value of a, b, c respectively are
The frequency (ν) of an oscillating liquid drop may depend upon radius (r) of the drop, density (ρ) of liquid and the surface tension (σ) of the liquid as : ν = ra ρb σc. The value of a, b, c respectively are
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Given below are two statements:
Statement I: Acceleration due to earth's gravity decreases as you go 'up' or 'down' from earth's surface.
Statement II : Acceleration due to earth's gravity is same at a height 'h' and depth 'd' from earth's surface, if h = d.
Given below are two statements: Statement I: Acceleration due to earth's gravity decreases as you go 'up' or 'down' from earth's surface. Statement II : Acceleration due to earth's gravity is same at a height 'h' and depth 'd' from earth's surface, if h = d.
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The electric field and magnetic field components of an electromagnetic wave going through vacuum is described by
Ex = E0 sin(kz – ωt)
By = B0 sin(kz – ωt)
Then the correct relation E0 and B0 is given by
The electric field and magnetic field components of an electromagnetic wave going through vacuum is described by Ex = E0 sin(kz – ωt) By = B0 sin(kz – ωt) Then the correct relation E0 and B0 is given by
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A photon is emitted in transition from n = 4 to n = 1 level in hydrogen atom. The corresponding wavelength for this transition is (given, h = 4×10-15 eVs):
A photon is emitted in transition from n = 4 to n = 1 level in hydrogen atom. The corresponding wavelength for this transition is (given, h = 4×10-15 eVs):
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For a certain radioactive process the graph between en(R) and t(sec) is obtained as shown in the figure. Then the value of half life for the unknown radioactive material is approximately:
For a certain radioactive process the graph between en(R) and t(sec) is obtained as shown in the figure. Then the value of half life for the unknown radioactive material is approximately:
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A long solenoid is formed by winding 70 turns cm-1. If 2.0A current flows, then magnetic field produced inside the solenoid is (µ0 = 4π×10-7TmA-1)
A long solenoid is formed by winding 70 turns cm-1. If 2.0A current flows, then magnetic field produced inside the solenoid is (µ0 = 4π×10-7TmA-1)
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The velocity time graph of body moving in a straight line is shown in figure. The ratio of displacement to distance travelled by the body in time 0 to 10s is:
The velocity time graph of body moving in a straight line is shown in figure. The ratio of displacement to distance travelled by the body in time 0 to 10s is:
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Study Notes
JEE Main 2023 Solutions (Second Shift) - PCM Paper 1
- Test Date: January 24, 2023
- Subject: Physics, Chemistry & Mathematics
- Time Allotted: 3 hours
- Maximum Marks: 300
- Paper Type: Paper-1
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Important Instructions:
- Students are allotted 5 minutes for reading instructions.
- The exam comprises 90 questions (30 per subject).
- The paper is divided into three parts: Physics, Chemistry, and Mathematics.
- Each part has two sections: Section A (all questions required to be answered) and Section B (5 out of 10 questions).
- Section A questions have +4 marks for correct answers and -1 mark for incorrect answers.
- Section B questions have +4 marks for correct answers and -1 mark for incorrect answers.
- Numerical answers in Section B should be rounded off to the nearest integer.
JEE Main 2023 - Part A (Physics) - Section A
- Question 1: The distance of a planet from the Sun if its period of revolution is 2.83 years, given the Earth-Sun distance is 1.5 × 106 km. Options: 6×107, 3×107, 6×108, 3×108
- Question 2: The ratio (y1/y2) of molar specific heats at constant pressure and constant volume for a monoatomic gas (y1) and a rigid diatomic gas (y2). Options: 27/35, 27/21, 25/21, 25/35
- Question 3: Assertion: Steel is used in construction of buildings and bridges. Reason: Steel is more elastic and its elastic limit is high. Choose correct options (A-D)
- Question 4: The phenomenon when different colors of white light converge at different points on the principal axis after refraction through a convex lens. Options: Scattering, Spherical aberration, Chromatic aberration, Polarization.
JEE Main 2023 - Part A (Physics) - Section B
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(Numerical Questions)*
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Question 1: Questions regarding metallic rod rotated with angular speed in a magnetic field.
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Question 2: The value of m if two vectors are perpendicular, given vector P= i+2mj+mk, Q=4i-2j+mk.
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Question 3: Viscous force on a spherical ball of given radius, density, and viscosity of the fluid.
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Question 4: Moment of inertia of a carved solid cylinder with given data.
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Question 5: Finding the change in focal length of a convex glass lens on immersing in water.
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Question 6: Power developed at a time t=2s for a body with given force F = (ti + 3t2j)N.
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Question 7: Calculate percentage increase in resistance of a copper wire stretched by 20%
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Question 8: Magnitude of magnetic force on side of right angled triangle current loop in a magnetic field.
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Question 9: Energy released by fission of 240X nucleus.
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Question 10: Mass 'm' if period of oscillation is increased by 1 second with given information.
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Description
Test your knowledge with this quiz based on the JEE Main 2023 Physics paper, specifically focusing on Section A. Evaluate your understanding of key concepts through various questions that reflect the exam format. Perfect for students preparing for competitive exams in Physics.
