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Class 11 Question Answers

Work is maximum when angle:

0° – W= Fd cosθ

Class 11 Subject: Physics Topic: Work and Energy
Work-Energy Theorem & conservative forces.

Theorem: Work done = Change in kinetic energy W=ΔKE=1/2mv^2−1/2mu^2 Conservative Forces: Path-independent (e.g., gravity) Non-Conservative Forces: Path-dependent (e.g., friction)

Class 11 Subject: Physics Topic: Work and Energy
Define significant figures and rules.

Significant figures are digits in a number that contribute to its precision. Rules:·         All non-zero digits are significant.·         Zeros between non-zero digits are significant.·         Leading zeros are no...

Class 11 Subject: Physics Topic: Basics of Physics
Dimensional formula of force.

[MLT^–2] – Derived using F = ma (mass × acceleration)

Class 11 Subject: Physics Topic: Basics of Physics
What is the role of physics in technology and society?

Physics is the foundation of all technological developments. Applications like satellites (based on gravitation), electronics (semiconductors), electricity (electromagnetism), medical imaging (X-rays, MRI), and nuclea...

Class 11 Subject: Physics Topic: Basics of Physics
Name the branch of physics that deals with motion.

Mechanics

Class 11 Subject: Physics Topic: Basics of Physics
Physics is the study of:

Matter and energy – Physics explains the fundamental laws governing matter, energy, space, and time.

Class 11 Subject: Physics Topic: Basics of Physics
Subject Wise Question Answers Class 11

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