CBT physics JAMB 2017 by Abbey /50 70 Created on February 18, 2020 By bolaPhysicsCBT physics JAMB 2017 1 / 50 Category: Physics1.Which is the incorrect formula for a bodyaccelerating uniformly? a = v^ 2 âˆ’ u v^2 = u^2 + 2as s = 1/2(ut) + at^2 v^2 – u^2 = 2as 2 / 50 Category: Uncategorized2 Which of the following is not an electromagneticradiation? x – ray Radio waves sunlight sound waves 3 / 50 Category: Uncategorized3 Calculate the electric field intensity between twoplates of potential difference 6.5V when separated bya distance of 35cm. 18.57NC ^1 53.06NC ^1 2.28NC ^1 0.80NC ^1 4 / 50 Category: Physics4 Why do soldiers march disorderly while crossinga bridge? To prevent resonance on the bridge To set the bridge into resonance To make the b ridge collapse To spread their weight evenly on the bridge 5 / 50 Category: Physics5 Calculate the upthrust on an object of volume50cm^{3} which is immersed in liquid of density103kgm^{-3 }[g = 10ms^{-2}] 0.8N 2.5N 0.5N 1.0N 6 / 50 Category: Physics6 Under what conditions are cathode raysproduced in a discharge tube? High pressure and low voltage High pressure and high voltage Low pressure and low voltage Low pressure and high volatge 7 / 50 Category: Physics7 Under which of the following conditions isworkdone A man supports a heavy food above his head with his hands A boy climbs onto a table A man pushes unto a table A woman holds a pot of water 8 / 50 Category: Physics8 Calculate the specific latent heat of vaporizationof steam of 1.13 x 106J pf heat energy is required toconvert 15kg of it to water. 7.53 x 105jkg^-1 7.53 x 10^-2jkg^-1 7.53 x 104jkg^-1 7.53 x 10-3jkg^-1 9 / 50 Category: Physics9 A cell of internal resistance 2 Ï€ supplies currentto a 6 Ï€ resistor. The efficiency of the cell is 12.0% 25.0% 33.3% 75.0% 10 / 50 Category: Physics10 Which of the following statements is NOTcorrect? Molecules of a liquid are stationary Brownian motion is an evidence of particle nature of matter Matter is made up of molecules The molecules of matter are in constant motion 11 / 50 Category: Physics11 A block and tackle pulley arrangement has 6pulleys in which an effort of 50N supports a load of200N, calculate the efficiency of the machine 80.0% 76.6% 66.7% 60.7% 12 / 50 Category: Physics12 Three 3Ï‰ resistance are connected in parallelwhat is the equivalent resistance? 1Ï‰ 9Ï‰ 3Ï‰ 0.33Ï‰ 13 / 50 Category: Physics13 Which of the following instruments helps tomaintain the correct humidity and temperature of abuilding? A compressor A refrigerator Air blower Air conditioner 14 / 50 Category: Physics14 An element and its isotope only differ in thenumber of protons electrons ions neutrons 15 / 50 Category: Physics15 The thermal expansion of a solid is an advantagein Balance wheel of a watch Construction of steel rail lines Construction of large steel bridges Fitting of tyres on wheels 16 / 50 Category: Physics16 The S.I unit of moment of a force is kgm Âµm Jm Âµm^-1 17 / 50 Category: Physics17 A block and tackle pulley arrangement has 6pulleys in which an effort of 50N supports a load of200N, calculate the efficiency of the machine 80.0% 76.6% 66.7% 60.7% 18 / 50 Category: Physics18 Calculate the light of the image formed by apinhole camera of length 12cm used to photograph anobject 60cm away from the hole and 70cm high 10 cm 16 cm 5 cm 14 cm 19 / 50 Category: Physics19 When two objects P and Q are supplied with thesame quantity of heat, the temperature change in P isobserved to be twice that of Q. The mass of P is halfthat of Q. The ratio of the specific heat capacity pf Pto Q is 1:4 4:1 1:1 2:1 20 / 50 Category: Physics20 When the r.m.s value of a source of electricitysupply is given as 240v, it means that the peak valueof the supply is 240v 340v 480v 57600v 21 / 50 Category: Physics21 Which of the following operations can be used toconvert an alternative current dynamo into a directcurrent dynamo number of turns in the coil is increased strength of the field magnet is increased slip rings are replaced with split ring cummutator coil is wound on a soft iron armature 22 / 50 Category: Physics22. The net capacitance in the circuit above is 80ÂµF 6.0ÂµF 4.0ÂµF 2.0ÂµF 23 / 50 Category: Physics23 The instrument used to measure the pressure of agas is barometer thermometer hygrometer manometer 24 / 50 Category: Physics24 A man of mass 50kg ascends a flight of stains5m high in 5 seconds. If acceleration due to gravity is10ms^{-2 }the power expended is 100w 200w 400w 500w 25 / 50 Category: Physics25 A radio station broadcast at a frequency of600KHZ. If the speed of light in air is 3 Ã— 108ms^{-1 }.Calculate the wavelength of the radio wave 2.20 Ã— 10^3 m 5.0 Ã— 10^2 m 5.0 Ã— 10^5 m 11.8 Ã— 10^11 m 26 / 50 Category: Physics26 Which of the following is a scalar quantity? Tension Weight Impulse Mass 27 / 50 Category: Physics27 Determine the focal length of a thin converginglens if the power is 5.0 dioptres 0.1 m 0.2 m 2.0 m 2.5 m 28 / 50 Category: Physics28 A string of length 5cm is extended by 0.04mwhen a load of 0.8kg is suspended at the end. Howfar will it extend if a force of 16N is applied? [g =10ms^2 ] 0.04m 0.12m 0.01m 0.08m 29 / 50 Category: Physics29 How can energy loss be minimized throughEddy-current? By using high resistance wire By using insulated soft iron wires By using low resistance wires By using turns of wires 30 / 50 Category: Physics30.From the diagram above, calculate the energy storedin the capacitor 4.0 x 10^-1 J 4.0 x 10^-4 J 8.0 x 10^-4 J 8.0 x 10^-2 J 31 / 50 Category: Physics31 A constant force of %n acts for a % seconds on amass of 5kg initially at rest. Calculate the finalmomentum 125kgmsâˆ’1 25kgmsâˆ’1 15kgmsâˆ’1 0kgmsâˆ’1 32 / 50 Category: Physics32 I. Refraction II. Interference III. DiffractionWhich of the above properties are common to allwaves? II and III only I, II and III I and II only I and III only 33 / 50 Category: Physics33 I. Refraction II. Interference III. DiffractionWhich of the above properties are common to allwaves? II and III only I, II and III I and II only I and III only 34 / 50 Category: Physics34 Which of the following is correct about anelectric cell? Primary cell produces a large current for a long time Secondary cell has a very high internal resistance Primary cell has a very low internal resistance Secondary cell has a very low internal resistance 35 / 50 Category: Physics35 Which of the following is a semiconductor copper silicon plastic Iron 36 / 50 Category: Physics36 Which of the following surfaces will absorbsradiant heat energy heat? white red black blue 37 / 50 Category: Physics37 It is known that a neutron exists in a light atomicnucleusWhich of the following also exists in the nucleus? An electron A Î² – particle Î² – particle proton 38 / 50 Category: Physics38 The instrument to measure the relative density oflight is thermometer hydrometer spring balance beaker 39 / 50 Category: Physics39 What is the speed of a body vibrating at 50cyclic per second 100 Ï€rads-1 200Ï€rads-1 50Ï€rads-1 400Ï€rads-1 40 / 50 Category: Physics40 The action of blotting paper on ink is due to diffusion osmosis capillarity surface tension 41 / 50 Category: Physics41 When two mirrors are placed at an angle of 900to each other, how many images will be formed whenan object is placed in front of the mirrors 5 4 3 2 42 / 50 Category: Physics42 If silicon is doped with phosphorus, what type ofsemiconductor material will be formed? Zener material P-n junction n-type p-type 43 / 50 Category: Physics43 Calculate the angle of minimum deviation of a60^{0Â }prism of a refractive index [sin^{-1Â }0.75 = 49^{0}] 38.00 19.47 16.25 49 44 / 50 Category: Physics44 What is the cost of running seven 40 W lampsand five 80 W la mps for 12 hours of the electricalenergy cost N7.00kWk? N80.00 N45.36 N65.00 N57.12 45 / 50 Category: Physics45. From the diagram above, calculate the total current inthe circuit 5.0A 3.7A 4.5A 4.0A 46 / 50 Category: Physics46 Calculate the time taken for a mango fruit thatfall from the tree 20 m to the ground [g = 10 ms -2 ] 10s 5s 4s 2s 47 / 50 Category: Physics47 Which of the following is not a mechanicalwave? wave in closed pipe radio waves water waves sound waves 48 / 50 Category: Physics48 The velocity ratio of an inclined plane whereangle of inclination in Î¸ is SinÎ¸ CosÎ¸ TanÎ¸ 1/SinÎ¸ 49 / 50 Category: Physics49 The volume of a fixed mass of gas is 10cm^{3 }when its pressure is 400cmHg. Determine the volume of the gas when its pressure is 200cmHg. 30cm^ 3 40^ 3 50^ 3 20^ 3 50 / 50 Category: Physics50 Which of the following representations is correctfor an atom X with 28 electrons and 30 neutrons? 58/28 X 30/28 X 28/30 X 58/30 X Your score isThe average score is 18% LinkedIn Facebook Twitter VKontakte 0% Restart quiz No related posts. Share FacebookTwitterPinterestLinkedinWhatsappTelegramEmailLeave a Comment Cancel ReplySave my name, email, and website in this browser for the next time I comment. Δ