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Mathematics

Important mathematics formulas for competitive exams.

97 Formulas

Physics

Essential physics formulas with solved examples.

32 Formulas

Chemistry

Important chemistry formulas and equations.

26 Formulas

Reasoning

Logical reasoning and aptitude shortcuts.

21 Formulas

English

Important English grammar rules for exams.

20 Formulas

Biology

Important biological equations and concepts.

20 Formulas

Computer Science

Important computer science formulas and concepts.

24 Formulas

Popular Formulas

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Physics 21

Velocity

v = s / t

Calculate average velocity.

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Physics 17

Force and Momentum

F = dp / dt

Relate force to rate of change of momentum.

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Physics 18

Centripetal Force

F = mv² / r

Calculate the force required for circular motion.

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Physics 21

Frequency and Time Period

f = 1 / T

Relate frequency and time period.

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Physics 18

Snell Law

n₁ sin i = n₂ sin r

Relate angles of incidence and refraction.

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Physics 18

Mirror Formula

1/f = 1/v + 1/u

Relate focal length, object distance and image distance for spherical mirrors.

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Physics 18

Specific Heat Capacity

c = Q / (m ΔT)

Define specific heat capacity.

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Physics 18

Latent Heat

Q = mL

Calculate heat required for phase change.

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Physics 18

Resistance in Series

Rₛ = R₁ + R₂ + R₃ + …

Find equivalent resistance when resistors are connected in series.

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Physics 18

Resistance in Parallel

1/Rₚ = 1/R₁ + 1/R₂ + 1/R₃ + …

Find equivalent resistance when resistors are connected in parallel.

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Chemistry 17

Avogadro Number Relation

1 mole = 6.022 × 10²³ particles

Relate moles to number of particles.

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Chemistry 19

Molar Volume at STP

1 mole of gas at STP = 22.4 L

Volume occupied by one mole of ideal gas at STP.

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