Engineering Questions
409 solved questions with detailed explanations
Q.38. Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : In electrostatics, a conductor does not store any net charge inside. Reason R
Q.2. The number of values of , satisfying the equations and , is :
Q.23. Let A, B be points on the two half-lines x-, a > 0 at a distance of a from their point of intersection P. The line segment AB meets the angle bisector of the given half-lines at the point Q. If
Q.39. A river of width 200 m is flowing from west to east with a speed of 18 km/h. A boat, moving with speed of 36 km/h in still water, is made to travel one-round trip (bank to bank of the river). Mi
Q.8. If the mean of the data Class: 5-10, 10-15, 15-20, 20-25, 25-30, 30-35 Frequency: 2, k, 28, 54, k+1, 5 is 21, then k is one of the roots of the equation :
Q.35. One gas of mole of molecules at temperature , volume , and pressure , and another gas of mole of molecules at temperature , volume , and pressure , are mixed resulting in pressure P and volume
Q.43. An electron is travelling with a velocity v in free space and when it enters a medium, its velocity is reduced by 20%. The de Broglie wavelength of electron in the medium is , where is its de B
Q.42. The maximum intensity in a Young's double slit experiment is . Distance between the slits (d) is , where is the wavelength of light used. The intensity of the fringe, exactly opposite to one of
Q.36. An ideal gas undergoes a process maintaining relation between pressure (P) and volume (V) as , where and are constants. If two samples A and B (two moles each) with initial volume and respec
Q.2. Let one root of the quadratic equation in x: be twice the other. Then the length of the latus rectum of the parabola is equal to: