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Q.48 Calculate the temperature (in K) at which the resistance of a metal becomes20% more than its resistance at 300 K. The value of the temperature coefficientof resistance for this […]

Q.47 How many pairs of autosomal chromosomes are there in normal humans? Normal humans have 22 pairs of autosomal chromosomes. These non-sex chromosomes carry genetic information unrelated to gender determination.​ […]

Q.46 What is the maximum number of hydrogen bonds that a water molecule canmake in the liquid state? A water molecule can form a maximum of four hydrogen bonds in […]

Q.45 An object is placed at the principal focus of a concave lens of focal length 10cm. The image will be formed at _____cm, between the optical center and thefocus […]

Q.44 Given thatA= (𝑠𝑖𝑛Ө 𝑐𝑜𝑠Ө 𝑡𝑎𝑛Ө + 𝑠𝑖𝑛Ө 𝑐𝑜𝑠Ө 𝑐𝑜𝑡Ө), the value of A is Step-by-Step Simplification The expression \( A = \sin\theta \cos\theta \tan\theta + \sin\theta \cos\theta \cot\theta \) […]

Q.43 The smallest positive (non–zero) integer “n” for which the expression(1+𝑖/(1−𝑖)^𝑛 = 1 holds true, is ___. The expression (1 + i(1−i)^n) = 1/(1 + (1−i)^n i) = 1 simplifies […]

Q.42 The average of all positive even integers less than or equal to 40 is ___. Step-by-Step Solution The average of all positive even integers less than or equal to […]

Q.41 A deck of ten cards is given to you as shown below in the figure. One card isdrawn at random from this deck. The probability of selecting a number […]

Q.40 The correct statement/s for bimolecular nucleophilic substitution reactions is/are(A) It goes through a carbocation formation(B) There is an inversion of configuration if the reacting center is chiral(C) Reaction is […]

Q.39 A single copy of an allele in sickle–cell heterozygous individuals reduces thefrequency and severity of malaria. The reason for this is(A) Low oxygen binding capacity of hemoglobin(B) Single amino […]