DU Ka Unit (Science Unit) case studies
DU Ka Unit (Science Unit) · Put your knowledge to work in context.
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. It is aimed at candidates who have completed Class XII with science subjects and who want a place in a Delhi University science course, including applicants from outside Delhi competing for a limited number of seats. The paper is multiple choice and draws on the school science curriculum: physics, chemistry, mathematics, and biology, plus a smaller general aptitude and reasoning component that tests interpretation and quick logical thinking rather than memorised facts. The DU Ka Unit (Science Unit) case studies are 5 cases and about 2,363 words.
1Cooling Curve of a Sealed Sample
A technician heats a 250 g sealed metal canister containing an unknown pure liquid in a well-insulated calorimeter. Power input is held at 120 W.
589 words, about 3 min2Titration Endpoint Judgement
A student titrates 25.0 cm³ of a colourless weak acid solution of unknown concentration with 0.100 mol/dm³ NaOH from a burette. Phenolphthalein is the indicator.
450 words, about 2 min3Two Trains and a Platform
Two trains run on parallel straight tracks. Train A is 180 m long and travels at 20 m/s.
449 words, about 2 min4Interpreting a Genetic Cross with Unexpected Ratios
Two fruit flies with normal wings are crossed. In the offspring, 76 have normal wings and 24 have curled wings.
381 words, about 2 min5Seating and Scheduling Constraint Puzzle
Five scientists - P, Q, R, S, T - give talks on one day, one per slot, in slots 1 to 5. Constraints: Q must be immediately before R.
494 words, about 2 min