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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 […]

18. A giant refracting telescope has an objective lens with a focal length of 15 m. If an eyepiece of focal length 1.0 cm is used, what is the angular […]

17. When a monochromatic light passes from air into water, which statement is true? a.Its speed and frequency decrease b.Its frequency stays the same and its wavelength decreases c.Its speed […]

16.The total resistance of the electrical circuit, depicted below, is a. 18 Ω b. 12 Ω c. 10 Ω d. 8 Ω How to Calculate Total Resistance in Series-Parallel Circuits: […]

15. Protein P function can be activated as well as inhibited by adding specific ligands. In an experimental set up, a student measured the expression level of protein P (in […]