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Physics Past Questions

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4,719 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10
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Past Questions

4,719 questions
All JAMB WAEC NECO CUSTOM
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Question 1 of 20 4,719 total questions
Question 2301
jamb 1980

A milliameter of resistance 5\(\Omega\) and full scale deflection of 50m A is to used to measure a potential difference of 50 V. The resistance of the multiplier should be

A95\(\Omega\)
B110\(\Omega\)
C595\(\Omega\)
D995\(\Omega\)
E1005\(\Omega\)
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Question 2302
jamb 1980

A tugboat is travelling from Asaba to Onitsha across the River Niger with a resultant velocity of 20 knots. If the river flows at 12 knots, the direction of motion of the boat relative to the direction of water flow is?

A36.87o
B53.13o
C90o
D136o
E143.13o
View Explanation & Discuss
Question 2303
jamb 1980
A stand-by generator is connected to fifteen 40 W lamps and musician's 600 W amplifying system. How much energy is used if the generator runs for 6 hours?
A3.84k Wh
B7.20k Wh
C8.40k Wh
D12.00k Wh
E14.56k Wh
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Question 2304
jamb 1980
A quantity of sungas at -133 occupies 1/3m3 under pressure 1.4 x 105 Nm-2. if the gas occupies 31 m-2 at 37oC, its pressure will be
A1.26 x 103Nm-2
B3.3 x104Nm-2
C1.35 x 104Nm-2
D2.2 x 104Nm-2
E105Nm-2
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Question 2305
jamb 1980
If the magnification of a virtual image formed of an object 10cm from a convex lens is 3, then the focal length of the lens is
A10cm
B15cm
C16cm
D19cm
E20cm
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Question 2306
jamb 1980
What is the relative permitivity of a capacitor if its capacitance with a medium as dielectric is 16 farads and its capacitance with vacuum as dielectric is 2 farads?
Ao
B\(\frac{1}{2}\)
C2
D8
E32
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Question 2307
jamb 1980

Which of the following statements on the use of X-rays is incorrect? X-rays are used

Ain hospitals to obtain photogaphs of tissues and bones in the body
Bfor the treatment of malignant growths like cancer cells
Cin detecting fingerprints
Dto reveal hidden flaws in metal castings and welded joints
Eto detect alternations which have been made to works of art
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Question 2308
jamb 1980

The name given to the characteristics behavior of substances which set their length perpendicular to a strong magnetic field instead of in line with it is

Amagnetization
Bparamagnetism
Cdiamagnetism
Ddemagnetization
Eferromagnetism
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Question 2309
jamb 1980

Any line or section through an advancing wave in which all the particles are in the same phase is called the

Awave lenght
Bwave crest
Cwave trough
Dwave amplitude
Ewave front
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Question 2310
jamb 1980

Which of the following statements is NOT true of the image in a plane mirror? The image is

Athe same size as the object
Blaterally inverted
Cvirtual
Dmagnified
Ethe same distance behind the mirror as the object is in front
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Question 2311
jamb 1980

a pressure cooker saves both time and fuel in cooking because inside the cooker, the

Aboiling point of water is raised
Bpressure is constant
Cheat is completely trapped
Dtemperature is evenly distributed
Evolume of steam varies
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Question 2312
jamb 1980

The water at the bottom of a waterfall is slightly warmer than that at the top because part of the

Apotential energy raises the water temperature
Bwater absorbs latent heat from the atmosphere
Ckinetic energy is changed intyo internal energy
Ddropping mass of water increases the heat capacity
EA and C above
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Question 2313
jamb 1980
which of the following does NOT cause a reduction of the surface tension of water?
Asoap solution
Bdetergent
Calcohol
Dcamphor
Egrease
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Question 2314
jamb 1980

The motion of the moving skin of a talking drum can rightly be described as

Atranslational
Brandom
Crotational
Doscillatory
Etransitory
View Explanation & Discuss
Question 2315
jamb 1980
Which of the following physical quantities is NOT a vector?
Avelocity
Bwork
Cforce
Delectric field intensity
Emagnetic induction
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Question 2316
jamb 1980
A given quantity of heat increases the temperature of 150grams of water from 9oC to 15oC and increases the temperature of oil of 100grams from 9oC to 25oC. The ratio of the specific heat of oil to that of water is
A0.36
B0.46
C0.56
D0.76
E0.86
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Question 2317
jamb 1980

In the study of physics, temperature and heat are often confused with each other. Which of the following statements correctly defines these two element?

Atemperature is a measure of the average kinetic energy of the molecules of a substance
Bheat is a measure of the total kinetic energy of the molecules in a system
Cdifferent materials require different amounts of heat to cause a given change in temperature
Dall of the above
EA and B only
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Question 2318
jamb 1980

A magnet is similar to a bipolar charged system in that

Ait consists of two opposite poles - the north and south poles
Bthe earth's magnetic field has a south pole near the geographical north pole and a north pole near the geographical south pole
Cthe force of attraction and repulsion between opposite and between like poles obeys a law for electrostatic charges
DA and B only
EA and C only
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Question 2319
jamb 1980

Which of the following are true of atom?

Aatoms are indestructible
Ball atoms of a pure substance, or elements are identical
Catoms of different substance have different weights
Dall of the above
EA and B only
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Question 2320
jamb 1980
Which of the following statements are true in the structure of atoms?
Athe atoms of the differnt element differ only in the number of protons and electrons
Bthe num,ber of protons equals the number of electrons
Catoms are constructed according to the plan of our solar system
Dall of the above
EA and C only
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