EASY
JEE Main
IMPORTANT
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If Z=A2B3C4, then the relative error in Z will be 

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Important Questions on Physics and Measurement

EASY
JEE Main
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 25 June 2022 Shift 2>Q 86
For z=a2x3y12, where 'a' is a constant. If percentage error in measurement of  'x' and 'y' are 4% and 12%, respectively, then the percentage error for 'z' will be _____%.
EASY
JEE Main
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 26 June 2022 Shift 2>Q 87
The dimension of mutual inductance is
MEDIUM
JEE Main
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 26 June 2022 Shift 2>Q 88
A travelling microscope is used to determine the refractive index of a glass slab. If 40 divisions are there in 1 cm on main scale and 50 Vernier scale divisions are equal to 49 main scale divisions, then least count of the travelling microscope is _____ ×10-6 m.
MEDIUM
JEE Main
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 26 June 2022 Shift 1>Q 89
An expression for a dimensionless quantity P is given by P=αβlogekTβx; where α and β are constants, x is distance; k is Boltzmann constant and T is the temperature. Then the dimensions of α will be 
MEDIUM
JEE Main
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 26 June 2022 Shift 1>Q 90
In a vernier callipers, each cm on the main scale is divided into 20 equal parts. If 10th vernier scale division coincides with 9th main scale division. Then the value of vernier constant will be _____ ×10-2 mm
MEDIUM
JEE Main
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 27 June 2022 Shift 1>Q 91
A silver wire has a mass 0.6±0.006g, radius 0.5±0.005mm and length 4±0.04cm. The maximum percentage error in the measurement of its density will be
EASY
JEE Main
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 27 June 2022 Shift 2>Q 92
The SI unit of a physical quantity is Pascal‐sec. The dimensional formula of this quantity will be 
EASY
JEE Main
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 27 June 2022 Shift 2>Q 93
The distance of the Sun from earth is 1.5×1011 m and its angular diameter is 2000'' when observed from the earth. The diameter of the Sun will be