Physics Past Questions v19 for (JAMB/WAEC/NECO)

Physics Past Questions v19 For (JAMB/WAEC/NECO); These Physics past questions are for students who are sitting for the following examinations

JAMB
Post-UTME / Post-JAMB
WAEC
NECO
WAEC GCE
NECO GCE
NABTEB
NABTEB GCE

Results

A) Ernest Rutherford

B) Erwin Schroedinger

C) Frank Hertz

D) Louis de Broglie

E) Werner Heisenberg.

A) astigmatism

C) hypermetropia

E) presbyopia

A) 2.54 days

B) 4.00 days

C) 4.80 days

D) 6.00 days

E) 8.00 days

B) I and II only

C) I and III only

D) II and III only

A) attract each other

B) repel each other

C) both move in the same direction

D) have no effect on each other

A) no electron will be emitted

B) the few electrons emitted will have a maximum kinetic energy of 1eV

C) the few electrons emitted will have a maximum kinetic energy of 3eV

D) many electrons will be emitted

A) leclanche cell

B) Daniel cell

C) Accumulator

D) Torch battery

A) both the pen and the cloth are magnetized

B) the pen is magnetized but the cloth is not

C) the pen is charged while the cloth is magnetized

D) both the pen and the cloth are charged

C) ii and iii

D) iii and iv

A) 4.0 x 1014Hz

B) 6.0 x 1014Hz

C) 7.5 x 1014Hz

D) 9.0 x 1014Hz

A) u > 2f > f

B) u < f < 2f

C) u = f < 2f

D) f < u < 2f

A) Green, yellow, green

B) Red, yellow, red

C) black, yellow, black

D) Green, white, green

A) doubling the length of the wire

B) doubling the mass of the wire

C) reducing the tension by half

D) reducing the absolute temperature by half

A) the focal length

B) two times the focal length

C) the distance of the image

D) two times the radius of curvature

B) above the dew point

D) below or at the dew point

A) i, iii only

B) i, ii, iii only

C) i, iii, and iv only

D) i, ii, iii and iv

A) weight of P displaced is greater than that of Q

B) weight of P displaced is less than that of Q

C) volume of P displaced is greater than that of Q

D) volume of P displaced is less than that of Q

A) 2.6 x 105Nm-2

B) 2.4 x 105Nm-2

C) 2.2 x 105Nm-2

D) 1.3 x 105Nm-2

A) decreased

B) increased

C) unchanged

D) oscillating

A) 32.5kg-1 s

B) 31.5kg-1 s

C) 30.8kg-1 s

D) 30.0kg-1 s

A) The energy is costant but the linear momentum varies

B) The linear momentum is conatant but the energy varies

C) both energy and linear momentum are constant

D) The speed and the linear velocity are both constant

A) electrons

D) helium nuclei

E) tritium nuclei

A) Aluminium

B) an electron

C) a neutron

E) a deuteron

A) 0.75 days

B) 2.58 days

D) 4.80 days

A) Nuclear energy

B) Magnetic energy

C) Solar energy

D) Chemical energy

E) Mechanical energy

A) Niels Bohr

B) Ernest Rutherford

C) Werner Heisenberg

D) Louis de Broglie

E) Erwin Schroedinger

A) a moving coil ammeter

B) a D.C generator

C) a D.C electric motor

D) An induction coil

E) An A.C generator

A) Inverted and magnified

B) at the principal focus

C) real and diminshed

D) Erect and virtual

E) at the center of the curvature

A) Long sight

B) Astigmatism

C) Presbyopia

E) Short sight

A) Infrared rays

B) Gamma rays

C) Ultra violet rays

D) Radio waves

E) Visible light

A) Hydrometer

B) Ratemeter

C) Barometer

D) Photometer

E) Manometer

A) stores the steam for future use

B) prevents the steam from escaping

C) ensures that only dry steam gets into the calorimeter

D) allows condensed steam to go into the calorimeter

E) determines the quantity of steam

A) Dew point

B) Temperature

C) Relative density

D) Relative humidity

E) Vapour pressure

C) Wheel barrow

D) Sugar tongs

E) Nutcrackers

E) saxophone

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Physics Past Questions v19 for (JAMB/WAEC/NECO)

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Physics Past Questions v19 for (JAMB/WAEC/NECO)

Results

#1. Which of the following scientists postulated that moving particles exhibit wave properties?

#2. The inability of the eye to focus near objects is known as

#3. In 24 days a radioactive isotope decreases in mass from 128g to 2g. What is the half-life of the radioactive material?

#4. Totally reflecting prisms are preferred to mirrors in periscopes becauseI. mirror givegive multiple images II. silvering on mirrors is easy damaged III. mirrors reflect less light than totally reflecting prisms

#5. In the figure above if the atmospheric pressure is 760mm, the pressure of the chamber G is

#6. In the figure above, XY is of length 1m, The value of R at balance point Z is

#7. In the circuit diagram above, calculate the current in the 12 Ω resistor if the cell has an emf of 12V and an internal resistance of 1Ω

#8. In the curve above, PQRST represents an alternating voltage of frequency 50Hz. The time interval between points P and R on the graph is

#9. What is the reading of the vernier calipers shown above?

#10. The figure above shows a uniform wood of weight 200N and length 50m. It is pivoted at one end and suspended by a cord at the other end at an angle of 30 degrees to the wood. Calculate the tension in the cord if the wood is horizontal.

#11. A spring of length 25cm is extended to 30cm by a load of 150N attached to one of its end, what is the energy stored in the spring?

#12. If two parallel conductors carry currents flowing in the same direction, the conducts will

#13. If light with photon energy 2eV is incident suitably on the surface of a metal with work function 3eV, then

#14. Which of the following has the lowest internal resistance when new?

#15. When a biro pen rubbed on a dry silk cloth is moved very close to a piece of paper on a dry table, the pen is found to pick up the paper. This is because

#16. Which of the following are found in the receiver but not in the microphone of a telephone handset? i. Diaphragm. ii. soft iron pole pieces. iii. permanent magnet. iv.carbon blocks

#17. Light of frequency 6.0 x 1014 Hz travelling in air is transmitted through glass or refractive index 1.5. Calculate the frequency of the light in the glass

#18. An object is placed in front of a converging lens of a focal length 20cm. The image is virtual and has a magnification of 2. What is the distance of the object from the lens?

#19. An object is placed directly below a glass block of thickness 3.0cm. Calculate the lateral displacement of the object if the refractive index of the glass is 1.5.

#20. In a projection lantern of focal length f, the object distance u, is such that

#21. If the Nigeria flag (green, white, green) is viewed in pure yellow light, which of the following set of colours would be observed on the flag?

#22. The sound from a source travelled to the bottom of the sea and the echo was heard 4s later. If the speed of sound in sea water is 1500ms-1 the depth of the sea is

#23. The fundamental frequency of vibration of a sonometer wire may be halved by

#24. A pipe of length 45cm is closed at the end. Calculate the fundamental frequency of the sound wave generated in the pipe if the velocity of sound in air is 360ms-1 [Neglect end correction]

#25. The note produced by a stretched string has a fundamental frequency of 400Hz. If the length of the string is doubled while the tension in the string is increased by a factor of 4, the frequency is

#26. To produce a parallel beam of light from a concave mirror, the distance at a which the lamp should be placed from the mirror is equal to

#27. When 100g of liquids L1 at 78oC was mixed with Xg of liquid L2 at 50oC, the final temperature was 60oC. Given that the specific heat capacity of L2is half that of L1, find x

#28. Heat is supplied to a test tube containing 100g of ice at its melting point. The ice melts completely in 1 min.What is the power rating of the source of heat? [Latent heat of fusion of ice = 336Jg-1]

#29. If a room is saturated with water vapour, the temperature of the room must be

#30. The equation of transverse wave traveling along a string is given by Y = 0.3 sin(0.5x - 50t) where Y and X are in cm and t is in seconds.Find the maximum displacement of the particles from the equilibrium position

#31. Which of these statements are TRUE of pressure in liquids? i. pressure acts equally in all direction. ii. pressure decreases with depth. iii. pressure at the same level of a liquid is the same. iv pressure is dependent on the cross-sectional area of the barometer tube

#32. The mass of a specific gravity bottle is 15.2g when it is empty. it is 24.8g when filled with kerosene and 27.2g when filled with distilled water. Calculate the relative density of kerosene

#33. If a solid X floats in liquids P of relative density 2.0 and in liquid Q of relative density 1.5, it can be inferred that the

#34. The melting point of naphthalene is 78oC. What is this temperature in kelvin

#35. A Motor Tyre is inflated to pressure of 2.0 x 105Nm-2 when the temperature of air is 27oC. What will be the pressure in it at 87oC assuming that the volume of the Tyre does not change?

#36. An object of mass 50kg is released from a height of 2m.Find the kinetic energy just before it strikes the ground

#37. A cone in an unstable equilibrium has its potential energy

#38. Calculate the magnitude of the force required to just move a 20kg object along a horizontal surface if the coefficient of friction is 0.2. [g = 10ms-2]

#39. If it takes 5.0 hrs to drain a container of 540.0cm3 of water, what is the flow rate of water from the container in kg-1? [Density of water = 1000kgm-3]

#40. A boat travels due east at a speed 40ms-1s across a river flow due south at 30ms-1s. What is the resultant speed of the boat?

#41. An object is projected with a velocity of 80ms-1 at an angle of 30o to the horizontal.The maximum height reached is

#42. A motor vehicle is brought to rest from a speed of 15ms-1 in 20 seconds. Calculate the retardation.

#43. Which of the following is TRUE of a particle moving in a horizontal circle with constant angular velocity?

#44. Beta particles are

#45. Which of the following substances is not an insulator?

#46. When an atom loses or gains a charge, it becomes an

#47. In 24 days a radioactive isotope decreases in mass from 64g to 2g. What is the half life of the radioactive material

#48. A car fuse is marked 15A and operates normally on a 12V battery. Calculate the resistance of the fuse wire

#49. A particle of charge q and mass m moving with a velocity v enters a uniform magnetic field of strength B in the direction of the field. The force on the particle is

#50. A lamp marked 100W, 250V is lit for 10 hours. If it operates normally and 1KWh of electrical energy costs 2k, what is the cost of lighting the lamp?

#51. A transformer with 5500 turns in its primary winding is used between a 240V a.c supply and 120V kettle. Calculate the number of turns in the secondary winding

#52. The electrical energy supplied by a Leclanche cell is obtained from the

#53. Which of the following scientists postulated that moving particles exhibit wave properties?

#54. A battery of e.m.f 10V an internal resistance 2Ω is connected to a resistance of 6Ω. Calculate the p.d

#56. The image of an object placed at the center of the curvature of a concave mirror is

#57. simple magnifying glass is used to view an object. At what distance from the lens must the object be placed so that an image 5 times the size of the object is produced 20cm from the lens?

#58. The inability of the eye to focus near objects is known as

#59. Which of the following has the shortest wavelength?

#60. When two objects P and Q are supplied with the same quantity of heat,the temperature change in P is observed to be twice that in Q. If the masses of P and Q are the same,calculate the ratio of the specific heat capacities of P and Q

#61. The instrument used in the measurement of atmospheric pressure is?

#62. A tap supplies water at 30°C while another supplies at 86°C. If a man wishes to bath with water at 44°C, calculate the ratio of mass of hot water to that of cold water required

#63. A steam trap is a component of apparatus used in determining the specific latent heat of vaporization of steam. In the steady state, the steam trap

#64. A hygrometer is an instrument used to measure

#65. Which of the following is a scalar quantity?

#66. In which of the following simple machines is the effort applied between the load and the fulcrum?

#67. The ice and steam points on a mercury in glass thermometer are found to be 90mm apart. What temperature is recorded in degree Celsius when the length of the mercury thread is 33.6mm above the ice point mark?

#68. A gas occupies a certain volume at 27°C. At what temperature will its volume be three times the original volume assuming that its pressure remains constant?

#69. A cell of e.m.f 1.5V and internal resistance 2.552 is connected in series with an ammeter resistance 0.50 and a load of resistance 7.00. Calculate the current in the circuit

#70. The nucleon number and the proton number of a neutral atom of an element are 238 and 92 respectively. What is the number of neutrons in the atom?

#71. Which of the following is a stringed instrument?

#72. In the figure above, XY is of length 1m, The value of R at balance point Z is

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