JEE MAIN Previous Years Questions

Question: 1

2023

The weight of a body at the surface of earth is 18 N. The weight of the body at an altitude of 3200 km above the earth's surface is (Given, radius of earth $R_e$ = 6400 km )

Question: 2

2023

The maximum vertical height to which a man can throw a ball is 136 m. The maximum horizontal distance upto which he can throw the same ball is

Question: 3

2023

A 100 m long wire having cross-sectional area $6.25 × 10^{−4} m^2$ and Young's modulus is $10^{10}Nm^{−2}$ is subjected to a load of 250 N, then the elongation in the wire will be

Question: 4

2023

A circular loop of radius 𝑟 is carrying current I A. The ratio of magnetic field at the center of circular loop and at a distance 𝑟 from the center of the loop on its axis is

Question: 5

2012

Resistance of a given wire is obtained by measuring the current flowing in it and the voltage difference applied across it. If the percentage errors in the measurement of the current and the voltage difference are 3% each, then error in the value of resistance of the wire is