Jamb Mathematics Updated on Nov 22, 2020 by Isaac InegbenehiNov 22, 2020 Welcome to Flashlearners Physics Quiz... Read Each Question Carefully And Choose The Best Answer From The Options. You May Click Here for Free Video Tutorials To Boost Your Score Or Simply Click Here To Access Thousands of Physics Questions Offline. Next To Begin...1. 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?4.8g2.4g3.2g4.2g2. What effort will a machine of efficiency 90% applyWhat effort will a machine of efficiency 90% apply to lift a load of 180N if its efforts arm is twice as long as its load arm?80N90N100N120N3. Capacitors are used in the induction coil toprevent distortion of electric fieldscontrol circuitsdissipate energyprevent electric sparks4. A wave that travels through stretched strings is known asseismic waveelectromagnetic wavemicro wavemechanical wave5. The pair if physical quantities that are scalar only areImpulse and timeVolume and areaMoment and momentumLength and displacement6. Calculate the energy of the third level of an atom if the ground state energy is -24.8eV-1.75eV-9.20eV-8.20eV-2.75eV7. An electric device is rated 2000W, 250V. Calculate the maximum current it can take.6A7A8A9A8. The mechanism of heat transfer from one point to another through the vibration of the molecules of the medium isdiffusionconvectionconductionradiation9. At what height must a similar body be situated to have potential energy equalAn 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]1.0m25.0m20.0m1.3m10. What will happen to the boiling point of pure water when it is heated in a place 30m below the sea love?It will be fluctuatingIt will be more than 100 degree CIt will be less than 100 degree CIt will still be at 100 degree C11. A gas at a pressure of 105Nm-2 expands from 0.6m3 to 1.2m3 at constant temperature, the work done is6.0 x 104 J7.0 x 107 J6.0 x 106 J6.0 x 105 J12. 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-2.105N686N595N581N13. Two liquids X and Y having the same mass are supplied with the same quantity of heatTwo 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 is1 : 42 : 11 : 24 : 114. When a brick is taken from the earth's surface to the moon, its massBecomes zeroRemains constantReducesIncreases15. Calculate the force acting on an electron of charge 1.5 x 10-19C placed in an electric field of intensity 105 Vm-11.5 x 10-14N1.5 x 10-11N1.5 x 10-12N1.5 x 10-13N16. A man 1.5m tall is standing 3m in front of a pinhole camera whose distance between the hole and the screen is 0.1m. What is the height of the image of the man on the screen?1.00m0.05m0.15m0.30m17. 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]0.10.80.50.218. The time required to bring the train to a complete halt isA train with an initial velocity of 20ms-1 is subjected to a uniform deceleration of 2ms-2. The time required to bring the train to a complete halt is40s5s10s20s19. If a sonometer has a fundamental frequency of 450Hz, what is the frequency of the fifth overtone?75Hz2700Hz456Hz444Hz20. At what depth below the sea-level would one experience a change of pressure equal to one atmosphere?100.0 m0.1 m1.0 m10.0 mTime is Up!