Jamb MathematicsModified On Nov 22, 2020 By Isaac 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. The energy of a photon having a wavelength of 10-10m is 1.7 x 10-12J 2.0 x 10-15J 1.7 x 10-13J 2.0 x 10-12J 2. 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] 0.1 0.8 0.5 0.2 3. 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? 4.8g 2.4g 3.2g 4.2g 4. Capacitors are used in the induction coil to prevent distortion of electric fields control circuits dissipate energy prevent electric sparks 5. 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 is 1 : 4 2 : 1 1 : 2 4 : 1 6. At what depth below the sea-level would one experience a change of pressure equal to one atmosphere? 100.0 m 0.1 m 1.0 m 10.0 m 7. Calculate the force acting on an electron of charge 1.5 x 10-19C placed in an electric field of intensity 105 Vm-1 1.5 x 10-14N 1.5 x 10-11N 1.5 x 10-12N 1.5 x 10-13N 8. Calculate the energy of the third level of an atom if the ground state energy is -24.8eV -1.75eV -9.20eV -8.20eV -2.75eV 9. 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 fluctuating It will be more than 100 degree C It will be less than 100 degree C It will still be at 100 degree C 10. A wave that travels through stretched strings is known as seismic wave electromagnetic wave micro wave mechanical wave 11. The mechanism of heat transfer from one point to another through the vibration of the molecules of the medium is diffusion convection conduction radiation 12. 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. 105N 686N 595N 581N 13. The rise or fall of a liquid in a narrow tube is because of the osmotic pressure of the liquid viscosity of the liquid surface tension of the liquid friction between the walls of the tube and the liquid 14. 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? 80N 90N 100N 120N 15. The pair if physical quantities that are scalar only are Impulse and time Volume and area Moment and momentum Length and displacement Time is Up! Time's up
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