Search Now

---

Question: 1

JEE MAIN 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

JEE MAIN 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

JEE MAIN 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

JEE MAIN 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

KEAM 2016

When the voltage and current in a conductor are measured as $(100\pm4) V$ and $(5\pm0.2)A$ , then the percentage of error in the calculation of resistance is

Question: 6

KEAM 2016

The set of physical quantities among the following which are dimensionally different is

Question: 7

KEAM 2015

The physical quantity that does not have the dimensional formula $[ML^{-1}T^{-2}]$ is

Question: 8

KEAM 2015

A force F is applied onto a square plate of side L. If the percentage error in determining L is 2% and that in F is 4%, the permissible percentage error in determining the pressure is

Question: 9

KEAM 2014

In a simple pendulum experiment, the maximum percentage error in the measurement of length is 2% and that in the observation of the time period is 3%. Then the maximum percentage error in determination of the acceleration due to gravity g is

Question: 10

KEAM 2014

The pitch and the number of circular scale divisions in a screw gauge with least count 0.02 mm are respectively