JEE Main 2024 Question Paper (05-Apr-2024) (Shift 1)

Question 1

Light emerges out of a convex lens when a source of light is kept at its focus. The shape of the wavefront of the light is:

Accepted Answer

Plane

Answer

Both spherical and cylindrical

Answer

Cylindrical

Answer

Spherical

Question 2

Following gates section is connected in a complete suitable circuit.For which of the following combinations, the bulb will glow (ON):

Accepted Answer

A = 1, B = 0, C = 0, D = 0

Answer

A = 0, B = 1, C = 1, D = 1

Answer

A = 0, B = 0, C = 0, D = 1

Answer

A = 1, B = 1, C = 1, D = 0

Question 3

If $ G $ is the gravitational constant and $ u $ is the energy density, then which of the following quantities has the dimension of $ \sqrt{uG} $ :

Accepted Answer

Force per unit mass

Answer

Pressure gradient per unit mass

Answer

Gravitational potential

Answer

Energy per unit mass

Question 4

Given below are two statements : Statement-I: When a capillary tube is dipped into a liquid, the liquid neither rises nor falls in the capillary. The contact angle may be 0&deg;. Statement-II: The contact angle between a solid and a liquid is a property of the material of the solid and liquid as well. In the light of above statements, choose the correct answer from the options given below.

Accepted Answer

Statement-I is false but Statement-II is true.

Answer

Both Statement-I and Statement-II are true.

Answer

Both Statement-I and Statement-II are false.

Answer

Statement-I is true and Statement-II is false.

Question 5

Given below are two statements: Statement-I: The figure shows the variation of stopping potential with frequency ($
u$) for the two photosensitive materials M$_{1}$ and M$_{2}$. The slope gives the value of $\frac{h}{e}$, where $h$ is Planck's constant and $e$ is the charge of an electron. Statement-II: M$_{2}$ will emit photoelectrons of greater kinetic energy for the incident radiation having the same frequency. In the light of the above statements, choose the most appropriate answer from the options given below.

Accepted Answer

Statement-I is correct and Statement-II is incorrect.

Answer

Statement-I is incorrect but Statement-II is correct.

Answer

Both Statement-I and Statement-II are incorrect.

Answer

Both Statement-I and Statement-II are correct.