List of top Questions asked in JEE Main- 2023

Find the equivalent capacitance across points A and B in the given electric circuit.

An object weighs 200N at the surface of earth. Find the weight at a depth of \(\frac{R}{2}\) , where R is radius of earth
The height of the antenna is 98 m. The radius of Earth is 6400 km. The area up to which it will transmit signal is:
A Carnot engine working between 27°C and 127°C performs 2 kJ of work. The amount of heat rejected is equal to:
Match column I with column II and choose the correct option.
Column IColumn II
(I) Torque(a) M°LT-2
(II) stress(b) ML-1T-1
(III) Coefficient of viscosity(c) ML-IT-2
(IV) Potential gradient(d) ML27-2
Select the correct graph showing the difference (d) between total energy and potential energy of a particle in linear SHM with position x of the particle (x = 0 is the mean position)
Statement —I: Electromagnets are made of soft iron. 
Statement —II: Soft iron has lower permeability and high retentivity. 
Choose the correct option related to statements.

A body of mass \( 5 \, \text{kg} \) is moving with a momentum of \( 10 \, \text{kg} \cdot \text{ms}^{-1} \). Now a force of \( 2 \, \text{N} \) acts on the body in the direction of its motion for \( 5 \, \text{s} \). The increase in the kinetic energy of the body is _____ J.

The ratio of magnetic field due to coil at centre and at distance of R from the centre on the axis passing through the centre and perpendicular to the plane of ring is : 1x (R is the radius of coil), find the value of x.

The ratio of the wavelength of spectral lines \( H_\alpha \) and \( H_\beta \) in the Balmer series is \( \frac{x}{20} \). The value of \( x \) is _______.

What is the ratio of σ and pi bonds in pyrophosphoric acid ?
IUPAC name of the compound C7H12O2?
Find out the oxidation number of the central metal atom of fe(CO)5 , VO2+, and WO3. Then calculate the sum of their oxidation state.
Ksp of BaSO4 is 8 × 10–11. If the solubility in presence of 0.1 M CaSO4 is?
The largest natural number \(n\) such that \(3^n\) divides \(66!\) is:
The solubility product of BaSO₄ is \(1 \times 10^{-10}\) at 298 K. The solubility of BaSO₄ in 0.1 M K₂SO₄(aq) is \(x \times 10^{-9}\) g L⁻¹. Calculate the value of \(x\).
How many of the following have five radial nodes ? 
5s, 6s, 7s, 6p and 4p 
In good quality cement ratio of lime total oxides of Si(SiO\(_2\)), Aluminium(Al\(_2\)O\(_3\)) and Iron(Fe\(_2\)O\(_3\)) should be as close as possible to _____ .

The area of the quadrilateral having vertices as (1,2), (5,6), (7,6), (-1,-6) is?

Let \( m \) and \( n \) be the numbers of real roots of the quadratic equations \( x^2 - 12x + [x] + 31 = 0 \) and \( x^2 - 5|x+2| - 4 = 0 \), respectively, where \( [x] \) denotes the greatest integer less than or equal to \( x \). Then \( m^2 + mn + n^2 \) is equal to ___________.

Maximum value n such that (66)! is divisible by 3n
Let A be the point (1, 2) and B be any point on the curve \( x^2 + y^2 = 16 \). If the centre of the locus of the point P, which divides the line segment AB in the ratio 3:2 is the point C (\( \alpha, \beta \)), then the length of the line segment AC is:
For a metal ion, the calculated magnetic moment is 4.90 BM. This metal ion has ______ number of unpaired electrons.
The coefficient of x and x\(^2\) in (1 + x)\(^p\) (1 – x)\(^q\) are 4 and – 5, then 2p + 3q is
Let 𝛂 be the remainder (22)\(^{2022}\) + (2022)\(^{22}\) is divided by 3 and ꞵ be the remainder when the same is divided by 7 then 𝛂\(^2\) + ꞵ\(^2\) is?