Engineering Questions — Physics

Q.48. The energy released when kg of is converted into by proton bombardment is eV. The value of is ________ (Nearest integer) (Mass of u, mass of u, mass of proton u and 1 u MeV/c and Avogad

Q.50. Two masses of 3.4 kg and 2.5 kg are accelerated from an initial speed of 5 m/s and 12 m/s, respectively. The distances traversed by the masses in the 5th second are 104 m and 129 m, respectively

Q.32. A water spray gun is attached to a hose of cross sectional area . The gun comprises of 10 perforations each of cross sectional area of . If the water flows in the hose with the speed of , calcul

Q.47. The heat extracted out of x gram of water initially at 50°C to cool it down to 0°C is sufficient to evaporate (1000 - x) gram of water also initially at 50°C. The value of x (closest integer) is

Q.36. A rigid dipole undergoes a simple harmonic motion about its centre in the presence of an electric field . If another electric field is introduced to the system, what will be the percentage chan

Q.43. K₁ and K₂ be the maximum kinetic energies of photoelectrons emitted from a surface of a given material for the light of wavelength λ₁ and λ₂, respectively. If λ₁ = 2 λ₂, then the work function o

Q.27. The charge stored by the capacitor C in the given circuit in the steady state is .......... C. [Figure: Circuit diagram with capacitor]

Q.31. An object of uniform density rolls up the curved path with the initial velocity v as shown in the figure. If the maximum height attained by an object is (g = acceleration due to gravity), the o

Q.40. Two known resistance of R and 2R and one unknown resistance X are connected in a circuit as shown in the figure. If the equivalent resistance between points A and B in the circuit is X , then

Q.49. When an external resistance of is connected across terminals of a cell, a current of 0.25 A flows through it. When the resistor is replaced by a resistor, a current of 0.5 A flows through it.