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KCET Physics Questions
Practise physics (science) for the Karnataka Common Entrance Test: 10 multiple-choice questions, each with the correct answer and a worked explanation. Click an option to check it, or “New questions” for another set.
Physics practice
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Q1.A transformer works on the principle of:
Show answer & explanation
Answer: D — Mutual induction
A changing current in one coil induces a voltage in the other.
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Q2.A body with initial velocity 18 m/s accelerates at 3 m/s² for 2 s. Find the distance covered.
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Answer: D — 42 m
s = ut + ½at² = 18×2 + ½×3×2² = 42 m.
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Q3.Which law states that every action has an equal and opposite reaction?
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Answer: C — Newton’s third law
Newton’s third law.
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Q4.A body starts at 4 m/s and accelerates uniformly at 1 m/s² for 3 s. Find its final velocity.
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Answer: A — 7 m/s
v = u + at = 4 + 1×3 = 7 m/s.
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Q5.Which mirror is used as a rear-view mirror in vehicles?
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Answer: A — Convex
Convex mirrors give an erect, diminished image and a wide field of view.
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Q6.A body starts at 10 m/s and accelerates uniformly at 2 m/s² for 7 s. Find its final velocity.
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Answer: A — 24 m/s
v = u + at = 10 + 2×7 = 24 m/s.
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Q7.Which colour of visible light has the longest wavelength?
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Answer: A — Red
Red light has the longest wavelength (~700 nm).
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Q8.A body starts at 1 m/s and accelerates uniformly at 4 m/s² for 3 s. Find its final velocity.
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Answer: A — 13 m/s
v = u + at = 1 + 4×3 = 13 m/s.
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Q9.The phenomenon responsible for the blue colour of the sky is:
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Answer: B — Rayleigh scattering
Shorter (blue) wavelengths are scattered more by air molecules.
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Q10.A current of 1 A flows through a 25 Ω resistor. What is the potential difference across it?
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Answer: B — 25 V
Ohm’s law: V = IR = 1 × 25 = 25 V.
How to approach physics questions
Write the formula before substituting and keep SI units throughout. Most numerical questions use one of: v = u + at, s = ut + ½at², F = ma, KE = ½mv², V = IR, P = I²R.
About KCET
Karnataka Common Entrance Test — conducted by Karnataka Examinations Authority (KEA). State entrance for professional courses in Karnataka.
Original practice questions written for this site in the style and difficulty of each exam’s syllabus. They are not past papers and the site is not affiliated with any exam body. Exam patterns, marking schemes and syllabi change — always check the latest official notification.
KCET practice topics
| Topic | Section | Question source |
|---|---|---|
| Algebra | Mathematics | Calculated (new numbers every set) |
| Geometry & Mensuration | Mathematics | Calculated (new numbers every set) |
| Physics | Science | Calculated + question bank |
| Chemistry | Science | Calculated + question bank |
| Biology | Science | Question bank |