Engineering Questions
409 solved questions with detailed explanations
Q.47. The terminal velocity of a metallic ball of radius 6 mm in a viscous fluid is 20 cm/s. The terminal velocity of another ball of same material and having radius 3 mm in the same fluid will be ...
Q.54. The pairs among A = [SO, CO], B = [O, F], C = [CN, CO], D = [NH, HO] and E = [MnO, CrO] that do not have similar Lewis dot structure are :
Q.40. A parallel plate air capacitor is connected to a battery. The plates are pulled apart at uniform speed v. If x is the separation between the plates at any instant, then the time rate of change o
Q.32. The pulley shown in figure is made using a thin rim and two rods of length equal to diameter of the rim. The rim and each rod have a mass of M. Two blocks of mass of M and m are attached to two
Q.49. A circular coil of radius 2 cm and 125 turns carries a current of 1 A. The coil is placed in a uniform magnetic field of magnitude 0.4 T. The axis of the coil makes an angle of with the directi
Q.33. Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: If the average kinetic energy of and molecules, kept in two different sized c
Q.5. Let upto 40 terms. If is a root of the equation , , then is equal to :
Q.4. Let and . If det(B) = 66, then det(adj (A)) equals :
Q.37. A spherical body of radius r and density falls freely through a viscous liquid having density and viscosity and attains a terminal velocity . Estimated maximum error in the quantity is : (Ig
Q.7. A letter is known to have arrived by post either from KANPUR or from ANANTPUR. On the the envelope just two consecutive letters AN are visible. The probability, that the letter came from ANANTPUR