Engineering Questions — JEE Main

Q.22. Let the centre of the circle be in the first quadrant and lie on the line . Let the area of an equilateral triangle inscribed in the circle be . Then the square of the length of the chord of th

Q.44. The de Broglie wavelength associated with an electron accelerated through a potential difference V is and the de Broglie wavelength associated with a proton accelerated through the same potenti

Q.6. A candidate has to go to the examination centre to appear in an examination. The candidate uses only one means of transportation for the entire distance out of bus, scooter and car. The probabili

Q.55. The correct order of molar heat capacities measured at 298 K and 1 bar is :

Q.57. Consider the reaction , for which the rate constant at is . Which of the following statements are true? A. When concentration of 'X' is increased to four times, the rate of reaction becomes 16

Q.61. Match the List-I with List-II List-I (Electronic configuration of tetrahedral metal ion) | List-II (Crystal Field Stabilization Energy ()) A. d | I. -0.6 B. d | II. -0.8 C. d | III. -1.2 D. d |

Q.3. Let . Then is equal to :

Q.30. A thin biconvex lens is prepared from the glass (μ = 1.5) both curved surfaces of which have equal radii of 20 cm each. Left side surface of the lens is silvered from outside to make it reflecti

Q.32. A body of mass m is taken from the surface of earth to a height equal to twice the radius of earth (R). The increase in potential energy will be ________. (g is acceleration due to gravity at th

Q.71. Number of paramagnetic complexes among the following is [MnBr₄]²⁻, [NiCl₄]²⁻, [Ni(CN)₄]²⁻, [Ni(CO)₄], [CoF₆]³⁻, [Fe(CN)₆]⁴⁻, [Mn(CN)₆]³⁻, [Ti(CN)₆]³⁻, [Cu(H₂O)₆]²⁺, [Co(C₂O₄)₃]³⁻