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14. Consider a spherical bacterial cell which has a diameter 2 µm. The density of the cell is 1 g/mL, the dry weight of the cell is roughly 30 percent […]

13. Which of the following statements is correct about the energy required for spectroscopic transitions? a. Electronic transition>Rotational transitions>Vibrational transitions> Nuclear spin transition b. Rotational transition>Electronic transition>Vibrational transition>Nuclear spin transition […]

11. Consider a system of two point particles with particles having distinct masses m1 and m2. If the first particle is pushed towards the centre of mass through a distance […]

10. If a charged particle with charge q Coulombs and mass m moves with a speed v perpendicular to a magnetic field of B kg/s2/A, then mv/(qB) is proportional to: […]

9. Two wires are made of the same material and have the same volume. However, wire 1 has a cross sectional area A, and wire-2 has a cross-sectional area 3A. […]

8. Kirchoff’s first law (∑ i =0 ) and second law (∑ iR = ∑ E), where the symbols have their usual meanings, are based on which laws respectively: a.Conservation […]

7. If a 100 bp DNA molecule is stretched by 1 bp, what is the stress and strain acting on the molecule? Given: Young’s modulus of elasticity of DNA is […]

6. Consider filling water up to a height h cm in a cylindrical bottle which has height 10cm, radius 3cm and mass 20g and is sitting on flat ground. At […]

5. If a simple pendulum with mass m, length L has a time-period T on Earth, its time-period when moved to a planet with one-fourth the acceleration due to gravity […]

19. Near-sightedness (myopia) is caused by the length of the eyeball becoming too long. Therefore, it can be corrected by a. A convex lens b. A concave lens c. Either […]