Tag: TIFR Previous Year Question Papers Biology PYQ With Answer Key Download

1. What is the relationship between the following pair of chemical entities? a. diastereomer b. enantiomer c. tautomer d. conformer They represent two different conformations (conformers) of the same molecule, […]

15. A random walker steps by a unit to the right with probability p, by a unit to the left with probability q, and stays at the same site with […]

14. A system consists of molecules that can be in one of two energy levels, E1 and E2>E1. At a temperature T, what fraction of the molecules are in energy […]

13. Two spherical liquid droplets coalesce to form one large spherical droplet. The initial radius of each droplet is r, the surface tension the liquid is s, and its density […]

12. I place a finger 1/3rd of the way down a guitar string to dampen it, and pluck it. Then I move my finger to 3/4ths of the way down, […]

11. Consider a simple pendulum consisting of a light rod of length l, pivoted at one end with a mass m attached at the other, swinging with an amplitude A […]

10. What is the effective capacitance of this circuit? a. 1.54 “F b. 4.5 “F c. 7.33 “F d. 19 “F The effective capacitance of the circuit is 7.33 μF, […]

9. A motor protein moves cargo in cells by taking forward steps along linear tracks called microtubules. Assume each step has size 8nm and consumes 30 kJ mol-1 of energy […]

8. A small metabolite on average diffuses about 1 nanometre (10-9 m) in a nanosecond (10-9 s). How far from its starting point will this metabolite reach on average in […]

7. The drag force on a particle moving at a speed v in a medium is of the form F=ζv, where the drag coefficient ζ depends on the particle’s shape […]