Jamb Physics CBT Quiz /15 1 Time is up! You need to think and answer fast!! physics Quiz This Quiz will increase your knowledge in physics. 1 / 15 A wave that travels through stretched strings is known as electromagnetic wave seismic wave mechanical wave micro wave 2 / 15 If a current of 2.5A flows through an electrolyte for 3 hours and 1.8g of a substance is deposited, what is the mass of the substance that will be deposited if a current of 4A flows through it for 4.8 hours? 4.2g 3.6g 2.8g 5.0g 3 / 15 If the linear magnification of the objective and eyepiece are 4 and 7 respectively, calculate the angular magnification of the microscope 28 26 28 16 4 / 15 Calculate the energy of the third level of an atom if the ground state energy is -24.8eV -9.20eV -1.75eV -2.75eV -8.20eV 5 / 15 An object is moving with a velocity of 5ms-1. At what height must a similar body be situated to have potential energy equal in value with the kinetic energy of the moving body?[g = 10ms-2] 0.7m 5.2m 1.4m 1.3m 6 / 15 Two liquids X and Y having the same massare supplied with the same quantity ofheat. If the temperature rise in X is twicethat of Y, the ratio of specific heatcapacity of X to that of Y is 2:1 1:4 1 : 2 1:8 7 / 15 To convert a galvanometer to a voltmeter, a low resistance is connected to it in parallel high resistance is connected to it in series high resistance is connected to it in parallel low resistance is connected to it in series 8 / 15 A house has ten 40W and five 100W bulbs. How much will it cost the owner of the house to keep them lit for 10 hours if the cost of a unit is N5? N45 N25 N60 N90 9 / 15 Which of the following obeys ohms law? Diode Electrolytes Electrolysis Metals 10 / 15 What fraction of its volume will be immersed in the liquid?A piece of cork floats in a liquid. What fraction of its volume will be immersed in the liquid?[density of the cork = 0.25 x 103 kgm-3 Density of the liquid = 1.25 x 103 kgm-3] 0.2 0.6 2.2 1.0 11 / 15 The particle nature of light is demonstrated by the speed of light diffraction of light speed of light photoelectric effect 12 / 15 The coefficient of friction between two perfectly smooth surface is Zero Infinity Half One 13 / 15 Calculate the work done, when a force of 20N stretches a spring by 50mm. 5.0 J 2.0 J 0.5 J 0.8 J 14 / 15 Calculate the apparent weight loss of a man...Calculate the apparent weight loss of a man weighing 70kg in an elevator moving downwards with an acceleration of 1.5ms-2. 205N 125N 105N 104N 15 / 15 The resultant of two forces is 50N...If the forces are perpendicular to each other and one of them makes an angle of 30° with the resultant, find its magnitude 80.3N 100.00N 57.7N 47.91N Your score is Restart quiz CHANGE SUBJECT