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3. According to the third law of thermodynamics, entropy of a perfect crystal at absolute zero temperature is a. always negative b. always positive c. equal to zero d. equal […]

2. What is the work done on 5 electrons moving through a uniform electric field from a potential of 0 volts to a potential of 10 millivolts (mV). The movement […]

1. From the circuit diagram below, what the value of the resistance across A & B? a. 5 b. 10 c. 15 d. 20 Introduction Finding the equivalent resistance across […]

15. A DNA nucleotide pair has an average mass of approximately 660 daltons. Write down the picogram amount, rounded to the closest integer, of DNA in a diploid human nucleus. […]

14. A speaks the truth in 75% cases whereas B lies in 20% cases. In what percent of cases are they likely to contradict each other narrating the same incident? […]

13. The figure is of a square sheet measuring 10cm x 10cm. Squares with side a cm are cut out from the four corners. The resulting sheet is bent into […]

12. If all permutations of the word “BIKE” are listed in alphabetical order (1. BEIK; 2. BEKI; 3. BIEK; 4. BIKE etc.), what will be the position of “IBEK” in […]

11. 8 professionals can paint a house in 12 days. However, it takes 12 amateurs 16 days to paint the same house. 16 professional painters started painting the house. After […]

10. If the arithmetic mean of two positive numbers is equal to square of their geometric mean. What is their harmonic mean? a. 1 b. 0 c. ½ d. Cannot […]

9. Bacillus Calmette-Guerin (BCG) is a vaccine that is primarily used against tuberculosis. You review a paper in which the authors test if BCG vaccination can provide protection against COVID19. […]