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Formula Sheet

Experiments — Formula Sheet

JEE Mains · Physics

Free Experiments formula sheet for JEE Mains Physics 2026 — all important formulas, equations, and constants for quick reference.

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A detailed labeled diagram showing all the main components of a Vernier Callipers, including main scale, vernier scale, fixed jaws, movable jaws, and depth rod.
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Formula Sheet — Experiments

Important formulas and equations from Experiments for JEE Mains Physics.

Formulas — Experiments

3.1 Vernier Callipers

LC = VC = 1 MSD − 1 VSD = (1 MSD) / n
Total Reading = N + (n × LC)
Actual Length = Observed Length − Zero Error
Positive Zero Error = N + x × LC

3.2 Screw Gauge

LC = Pitch / (Number of circular scale divisions)
Total Reading = N + n × LC
Absolute Reading = Measured Reading − Zero Error

3.3 Simple Pendulum — Determination of g

T = 2π √(L/g)
g = 4π²L / T²
T² = (4π²/g) × L → slope of T² vs L graph = 4π²/g
(Δg/g) × 100 = (ΔL/L + 2ΔT/T) × 100

3.4 Young's Modulus by Searle's Method

Y = (MgL) / (πr²l) = (FL) / (Al)
Δl = (L / πr²Y) × w → slope of Δl vs Δw graph = L / πr²Y
(ΔY/Y) × 100 = (ΔL/L + Δl/l + 2Δr/r) × 100

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Frequently Asked Questions

What topics are covered in Experiments for JEE Mains?
Experiments is an important chapter in JEE Mains Physics. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: 3.1 Vernier Callipers, 3.2 Screw Gauge (Micrometer Screw), 3.3 Determination of 'g' using Simple Pendulum, 3.4 Young's Modulus by Searle's Method.
How important is Experiments for JEE Mains?
Experiments is a frequently tested chapter in JEE Mains Physics. Questions from this chapter appear regularly in previous year papers. There are 53 practice questions available for this chapter.
How to prepare Experiments for JEE Mains?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.

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