KCET Physics All Formulas PDF-Are you preparing for KCET 2026? Mastering the Physics section can significantly boost your overall score. Based on a thorough analysis of previous years' KCET question papers, the Physics section is heavily formula-driven, making it essential for candidates to revise key formulas regularly. The KCET Physics syllabus, as prescribed by the Department of Pre-University Education (PUE), Karnataka, covers both First and Second PUC topics. With consistent practice and the right formula sheet, scoring 160+ in KCET becomes an achievable target for you. This article provides a comprehensive guide to KCET Physics All Formulas PDF 2026, along with syllabus details, topic-wise weightage, and previous year questions to strengthen your exam preparation.

Also read |KCET Answer Key 2026 Live Updates(Unofficial Keys)

Candidates preparing for KCET 2026 Physics should download and learn the KCET Physics Formula thoroughly before the KCET exam. The table below consists of the KCET Physics formula sets.

Source- TestPrep Cart
Expert Tip-Print these formula sheets and paste them at your study desk for quick daily revision. Revise them at least once every three days in the weeks leading up to the exam.

KCET Physics Syllabus 2026

The KCET 2026 Physics syllabus is divided into First PUC and Second PUC topics, as directed by the Karnataka Department of Pre-University Education. You should ensure that you cover every chapter listed below, as questions are drawn from both PUC years.

KCET 2026 Physics - Topic Wise Weightage

Some of the topics holding the highest weight in KCET Physics are Gravitation, Magnetism Matter, etc. Candidates can check the topic-wise weightage of KCET 2026 Physics.
Understanding topic-wise weightage helps you prioritise your study plan effectively. Focus more time on high-weightage chapters while ensuring you do not entirely skip lower-weightage ones, as even 2–3 marks from those topics can be decisive.

KCET 2026 First PUC Important Topics

The table below shows the KCET Physics important topics from the first PUC.

KCET 2026 Second PUC Important Topics

The table below shows the KCET Physics important topics from the second PUC.

KCET Physics - Most Asked Questions from Previous Year Question Papers

The following questions have been sourced from previous years' KCET question papers. Practising these will familiarise you with the exam pattern, the type of formula applications expected, and the level of difficulty.

A. A moving coil galvanometer is converted into an ammeter of range 0 to 5mA. The galvanometer resistance is 90Ω and the shunt resistance has a value of 10Ω. If there are 50 divisions in the galvanometer-turned ammeter on either side of zero, its current sensitivity is -

1. 1 × 105 A/div
2. 2 × 104 A/div
3. 1 × 105 div/A
4. 2 × 104 div/A

B. The energy gap of an LED is 2.4 eV. When the LED is switched ‘ON’, the momentum of the emitted photons is

1. 2.56 × 10-27 kg.m.s-1
2. 1.28 × 10-11 kg.m.s-1
3. 0.64 × 10-27 kg.m.s-1
4. 1.28 × 10-27 kg.m.s-1

C. If the length of a conductor is increased by 20% and the cross-sectional area is decreased by 4%, then calculate the percentage change in the resistance of the conductor.

Answer- 25%

D. A cell of emf 90V is connected across a series combination of two resistors each of 100Ω resistance A voltmeter of resistance 400Ω is used to measure the potential difference across each resistor The reading of the voltmeter will be :

1. 45V
2. 40V
3. 80V
4. 90V

E. A hollow cylindrical conductor has a length of 314m, while its inner and outer diameters are 4mm and 8mm respectively The resistance of the conductor is n × 10 −3 Ω n × 10 −3 Ω. If the resistivity of the material is 24 × 10 − 8 Ω 24 × 10 −8 Ω m The value of n is ___.

SOLUTION -

R=ρ A ℓ, the cross-sectional area is π(b2−a2)

R=ρ π (b2−a2) ℓ​=3.14×(42−22)×10−62.4×10−8×3.14​

=2×10−3Ω

∴ n=2

F. A metallic rod of length 1 m held along the east-west direction is allowed to fall freely. Given the horizontal component of earth’s magnetic field BH = 3 × 10-5 T. The emf induced in the rod at an instant t = 2s after it is released is (Take g = 10 ms-2 )

1. 3 × 10-3 V
2. 3 × 10-4 V
3. 6 × 10-3 V
4. 6 × 10-4 V

G. The energy gap of an LED is 2.4 eV. When the LED is switched ‘ON’, the momentum of the emitted photons is -

1. 2.56 × 10-27 kg.m.s-1
2. 1.28 × 10-11 kg.m.s-1
3. 0.64 × 10-27 kg.m.s-1
4. 1.28 × 10-27 kg.m.s-1

H. In Young’s double-slit experiment, the intensity of light passing through each of the two double slits is 2 × 10-2 Wm-2. The screen-slit distance is very large in comparison with the slit-slit distance. The fringe width is β. The distance between the central maximum and a point P on the screen is 33 β. Then the total light intensity at that point is -

1. 4 × 10-2 Wm-2
2. 2 × 10-2 Wm-2
3. 16 × 10-2 Wm-2
4. 8 × 10-2 Wm-2

I. If the area of cross-section is halved and the length of a wire having Young's modulus Y is doubled, then its new Young's modulus will be -

1. Y
2. 4Y
3. Y/2
4. Y/4

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Cracking the KCET 2026 Physics section requires a structured approach, and that starts with having the right formulas at your fingertips. From high-weightage chapters like Gravitation and Magnetism to conceptual topics like Wave Optics and Semiconductor Electronics, every topic demands formula clarity and consistent practice. With the right strategy and regular formula revision, scoring 50+ in KCET Physics 2026 is well within your reach.

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