List of top Questions asked in KEAM

Which 3d series of element has least enthalpy of atomization?

P\(_4\) \(\rightarrow\) PH\(_3\) + H\(_2\)PO\(_2\)
Oxidation state of phosphorus change from -------- to -------- respectively.

What is the IUPAC name of Mesityl oxide?

IUPAC name of Element number 105?

For an elastic collision

The KE of particle of mass \(1 \times 10^{-31}\) Kg and the de Broglie wavelength 63 nm (h = \(6.3 \times 10^{-34}\))

What is 1-chlorocyclohexene?

Decreasing order basic strength

For an elastic collision

If \( I = 16 \, \text{A} \), electron density \( n = 5 \times 10^{23} \, \text{m}^{-3} \), and \( A = 1 \times 10^{-7} \, \text{m}^2 \), find the drift velocity.

Transformer core is laminated because:

Which of the following statement is correct for EM wave:

Transformer core is laminated because:

Current in a circuit is 0.6 A when an external resistance of \( 3 \, \Omega \) is connected. When the external resistance is changed to \( 6 \, \Omega \), current in the circuit becomes 0.4 A. Find the internal resistance of the cell.

Given \( I = 2A \), \( \phi = 10^{-2} \, \text{weber} \), \( N = 1000 \), calculate the self-inductance.

At a certain height \( h \) from the surface of Earth, the value of acceleration due to gravity is \( \frac{g}{9} \), where \( g \) is the acceleration due to gravity at the surface. What is the value of \( h \) in terms of the radius of Earth \( R \)?

A particle of charge equal to 10 times the charge of an electron revolves in a circle with frequency equal to 10 revolutions per second. Find the magnetic field at the centre of the circular path.

Bernoulli's principle is applicable for:

What should be connected in the circuit to remove ripples in AC:

If a proton is displaced by 5m in an electric field of \(50 \, \text{N/C}\), what is the work done by the electric field?

What should be connected in the circuit to remove ripples in AC:

If \( I = 2 \, \text{A}, \, \phi = 10^{-2} \, \text{Weber}, \, N = 1000 \), calculate the self-inductance.

Bernoulli's principle is applicable for:

What is the ratio of the longest wavelength in Lyman and Balmer series?

What should be connected in the circuit to remove ripples in AC?