Engineering Questions
409 solved questions with detailed explanations
Q.39. Given below are two statements: one is labelled as Assertion (A): and the other is labelled as Reason (R). Assertion (A): The electromagnetic wave exerts pressure on the surface on which they ar
Q.57. Given below are two statements : R = 8.314 J K⁻¹ mol⁻¹ and 1 cal = 4.2 J Statement I: When Ea = 12.6 kcal/mol, the room temperature rate constant is doubled by a 10°C increase in temperature (29
Q.43. An inductor of inductance 10 mH having resistance of 100 \Omega is connected to battery of E.M.F. 1.0 V through a switch as shown in the figure below. After switch is closed, the ratio of instan
Q.12. is equal to :
Q.52. Which of the following statement(s) is/are true ? (A) If two orbitals have the same value of (n + l), the orbital with lower value of n will have lower energy. (B) Energies of the orbitals in th
Q.31. Two identical bodies, projected with the same speed at two different angles cover the same horizontal range R. If the time of flight of these bodies are 5 s and 10 s, respectively, then the valu
Q.51. Consider the following spectral lines for atomic hydrogen: A. First line of Paschen series B. Second line of Balmer series C. Third line of Paschen series D. Fourth line of Bracket series The co
Q.3. Let be a complex number such that and . Then is equal to :
Q.65. Given below are two statements : Statement-I : Methane can be prepared by decarboxylation of sodium ethanoate, Kolbe's electrolysis of sodium acetate and reaction of CHMgBr with water. Statement
Q.20. Let be the base of natural logarithm and let and be two bijective functions such that is strictly decreasing and is strictly increasing. If , then the area of the region is :