1
WB JEE 2008
MCQ (Single Correct Answer)
+1
-0.25
A body of mass 3 kg acted upon by a constant force is displaced by S meter, given by relation $$S = {1 \over 3}{t^2}$$, where t is in second. Work done by the force in 2 seconds
2
WB JEE 2023
MCQ (Single Correct Answer)
+1
-0.25
A uniform rope of length 4 m and mass 0.4 kg is held on a frictionless table in such a way that 0.6 m of the rope is hanging over the edge. The work done to pull the hanging part of the rope on to the table is, (Assume g = 10 m/s$$^2$$)
3
WB JEE 2022
MCQ (Single Correct Answer)
+1
-0.25
The kinetic energy (Ek) of a particle moving along X-axis varies with its position (X) as shown in the figure. The force acting on the particle at X = 10 m is
4
WB JEE 2021
MCQ (Single Correct Answer)
+1
-0.25

A block of mass m slides with speed v on a frictionless table towards another stationary block of mass m. A massless spring with spring constant k is attached to the second block as shown in figure. The maximum distance, the spring gets compressed through is
Questions Asked from Work Power & Energy (MCQ (Single Correct Answer))
Number in Brackets after Paper Indicates No. of Questions
WB JEE Subjects
Physics
Mechanics
Units & Measurements
Vector Algebra
Motion
Laws of Motion
Work Power & Energy
Center of Mass
Rotational Motion
Properties of Matter
Heat and Thermodynamics
Simple Harmonic Motion
Waves
Gravitation
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Some Basic Concepts of Chemistry
Atomic Structure
Redox Reaction
Gaseous State
Chemical Equilibrium
Liquid Solution
Ionic Equilibrium
Thermodynamics
Chemical Kinetics
Radioactivity and Nuclear Chemistry
Electrochemistry
Solid State
Surface Chemistry
Inorganic Chemistry
Periodic Table
Chemical Bonding
Metallurgy
Hydrogen and It's Compounds
Some s Block Elements
Some P Block Elements
d and f Block Elements
Coordination Compounds
Organic Chemistry
Mathematics
Algebra
Logarithms
Sequence and Series
Quadratic Equations
Complex Numbers
Permutations and Combinations
Mathematical Induction and Binomial Theorem
Matrices and Determinants
Vector Algebra
Three Dimensional Geometry
Probability
Statistics
Sets and Relations
Trigonometry
Coordinate Geometry
Calculus