DU Ka Unit (Science Unit) study guide
DU Ka Unit (Science Unit) · Work through your exam, one topic at a time.
The DU Ka Unit (Science Unit) entrance test is the entrance examination used by the University of Delhi for admission to its undergraduate science programmes, most prominently the B.Sc. (Hons.) courses in physics, chemistry, mathematics, and the biological sciences, along with several interdisciplinary science combinations. The DU Ka Unit (Science Unit) study guide has 5 sections and about 1,423 words.
01Physics: Mechanics, Electricity and Practical Reasoning
Build fluency in kinematics (displacement, velocity, acceleration, equations of uniformly accelerated motion), Newton's three laws, momentum and its conservation, work–energy and power, circular motion, and gravitation. In electricity, know Ohm's law, series and parallel resistance, electrical power, and the qualitative behaviour of magnetic fields around currents.
311 words, about 2 min02Chemistry: Structure, Reactions and Quantitative Calculation
Know atomic structure (subatomic particles, isotopes, electronic configuration), the periodic trends of atomic radius, ionisation energy and electronegativity, and the nature of ionic, covalent and metallic bonding. Chemical equations must be balanced, and stoichiometry - mole concept, molar mass, limiting reagent, percentage yield - is the highest-yield topic.
293 words, about 1 min03Mathematics: Algebra, Calculus and Problem Strategy
Algebra underpins almost every question: quadratic equations and the discriminant, factorisation, inequalities, indices and logarithms, sequences and series, and the binomial theorem. Coordinate geometry covers straight lines, distance, midpoint and circles.
265 words, about 1 min04Biology: Cells, Genetics, Physiology and Ecology
Cell structure and organelle function, the differences between plant and animal cells, and the processes of diffusion, osmosis and active transport. Know photosynthesis and respiration as complementary processes with their equations and sites.
286 words, about 1 min05General Aptitude and Reasoning: Speed with Accuracy
Quantitative aptitude covers percentages, ratio and proportion, averages, profit and loss, simple and compound interest, time–speed–distance, time and work, and mixtures. Reasoning splits into verbal (analogies, odd-one-out, coding–decoding, blood relations, syllogisms) and non-verbal (series, mirror images, paper folding, figure counting).
268 words, about 1 min