List of top Physics Questions asked in JEE Main

Kinetic energy of electron, proton and a particle is given as K, 2K and 4K respectively, then which of the following gives the correct order of De-Broglie wavelengths of electron, proton and a particle

If the height of the tower used for LOS communication is increased by 21%, the percentage change in range is?

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Earth has atmosphere and moon doesn’t
Reason (R): escape speed on moon is less than that of Earth.
In the light of the above statements, choose the correct answer from the options given below:

A block of mass 100 gm is placed on a smooth surface, moves with the acceleration of a=2x, the change in kinetic energy can be given as $(\frac {x^n}{10})$, find the value of n.

A person driving car at a constant speed of 15 m/s is approaching a vertical wall. The person notices a change of 40 Hz in the frequency of his car’s horn upon reflection from the wall. The frequency of horn is ____ Hz.

If the length of a conductor is increased by 20% and cross-sectional area is decreased by 4% , then calculate the percentage change in the resistance of the conductor.

Choose correct graph of electric potential for uniformly charged hollow sphere.

Choose correct graph of resistivity and temperature for semi-conductor material.

Find moment of inertia about axis shown which is equidistant from both spheres

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Range is maximum at θ = 45º.
Reason (R): Range is maximum when sin (2θ) = 1.
In the light of the above statements, choose the correct answer from the options given below:

For below transition of e^–1 of H-atom find out shortest wavelength out of given transition

Find period of oscillation if mass 'm' is displaced parallel to earth's surface & released?

A planet has density same as that of Earth and mass is twice that of Earth. If the weight of an object on Earth is "W" then the weight on the planet is:

A parallel plate capacitor with plate area A and plate separation d is filled with a dielectric material of dielectric constant K = 4. The thickness of the dielectric material is x, where x < d. Let C1 and C2 be the capacitance of the system for $x =$ $\frac{1}{3}d$ and $x=\frac{2}{3}d$, respectively. If C₁ = 2μF, the value of C₂is _______ μF.

E = E₀ sin ($\omega$t – kx)
B = B₀ sin ($\omega$t – kx), then ratio of energy density of electric field to magnetic field is :

A uniform current carrying cylindrical wire carries current $I$ having radius 'a'. Magnetic field with distance x varies with relation given:

Two identical current carrying coils with same centre are placed with their planes perpendicular to each other. If i = $\sqrt{2}A$ and radius of coil R = 1 m, then magnetic field at centre C is equal to: