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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 […]

6. Inside a uniformly charged solid sphere of radius R, at a distance r from the centre, the electric field is proportional to: a. 1/r2 b. 1/r c. r d. […]

5. An object with a mass of 70 kilograms hits a stationary air bag, with velocity 25 m/s at the instant of impact. After 0.25 seconds the object has come […]

4. A wire has resistance 12 ohms. It is bent and its two ends are connected to form a circle. The effective resistance between the two points on any diameter […]

3. Two particles X and Y have the same mass but their charges differ. If X has charge +q and Y has charge + 9q and they accelerate in vacuum […]

2. Two forces of 7 Newtons each acting at 45 degrees to each other will have a resultant of approximately a. 6 Newtons b. 8 Newtons c. 10 Newtons d. […]

1. A sample of a pure solid substance is heated at a constant rate and its temperature recorded as a function of time. This graph has a long flat portion […]

15. This graph shows how hearing ability varies with the frequency of sound in three groups of airport inspectors. The solid line represents inspectors who had worked at the airport […]

14. A quantity x is drawn from a normal distribution P(x), with mean 1 and variance 4. Consider the quantity X=x1+x2…+xN obtained by adding values of x from N independent […]