Engineering Questions

Q.62. The correct order of the rate of the reaction for the following reaction with respect to nucleophiles is: CHBr + Nu CHNu + Br

Q.38. A monochromatic source of light operating at 15 kW emits 2.5 × 10²² photons/s. The region of an electromagnetic spectrum to which the emitted electromagnetic radiation belongs to (Take h = 6.6 ×

Q.2. Consider the quadratic equation . Let be the minimum value of the product of its roots and be the maximum value of the sum of its roots. Then the sum of the first six terms of the G.P., whose f

Q.66. Given below are two statements : Statement-I : Due to increase in van der Waals forces, the order of boiling points is . Statement-II: As [Figure: 1,4-dichlorobenzene] is more symmetric, its mel

Q.61. Consider the following molecules/species: [Figure: Three organic molecules labeled (x), (y), and (z). (x) is CH₃-C(=O)-CH₃ (acetone). (y) is CH₃-C(=O)-O⁻ (acetate ion). (z) is CH₃-C(=O)-H (aceta

Q.29. A capacitor C is first charged fully with potential difference of and disconnected from the battery. The charged capacitor is connected across an inductor having inductance L. In t s 25% of the

Q.46. A parallel plate capacitor is having separation between plates 0.885 mm. It has a capacitance of 1 µF when the space between the plates is filled with an insulating material of resistivity 1 × 1

Q.40. A thin convex lens and a thin concave lens are kept in contact and are co-axial. Which of the following statements is correct for this combination of two lenses?

Q.1. Let . Let be the roots of the equation . If and , then is equal to :

Q.58. Consider the following data : Electrolyte | (S cm mol) BaCl | x HSO | x HCl | x BaSO is sparingly soluble in water. If the conductivity of the saturated BaSO solution is x S cm then the solubil