KEAM Engineering: Physics, Chemistry and Mathematics
What this domain tests
KEAM Engineering is the Physics–Chemistry–Mathematics stream for B.Tech admission in Kerala. CEE sets two OMR papers: Paper I combines Physics and Chemistry, Paper II is Mathematics; each correct answer earns 4 marks and each wrong answer deducts 1, so blind guessing is costly. Questions stay within the Kerala higher-secondary syllabus but reward clean application over memorised chunks.
Core rules and concepts
- Mechanics: resolve vectors, use F = ma, conserve energy/momentum, and track sign conventions.
- Electricity and optics: apply Ohm’s law, Kirchhoff’s rules, lens/mirror formulae with Cartesian sign convention.
- Mathematics: master limits, derivatives, definite integrals, vectors, conics, matrices, and probability.
- Chemistry: balance stoichiometry, use mole concept, periodic trends, and organic reaction mechanisms.
Worked example
A ball is thrown at 20 m/s at 30° above horizontal. Take g = 10 m/s². Resolve: ux = 20 cos30° = 17.32 m/s; uy = 20 sin30° = 10 m/s. Maximum height H = uy²/(2g) = 100/20 = 5 m. Time of flight T = 2uy/g = 20/10 = 2 s. Range R = uxT = 17.32 × 2 = 34.64 m. The reasoning is to resolve first, then apply vertical and horizontal equations separately; never mix the two.
Traps that cost marks
Using degrees in a formula that expects radians; dropping the negative sign in mirror/lens calculations; forgetting limiting reagent in stoichiometry; and guessing when four wrong answers cancel one correct. Keep units visible and check whether the question asks for magnitude only.