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2,483 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10

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2,483 questions

Question 1 of 20 2,483 total questions

Question 1101

jamb 1984

For which of the underlisted quantities is the derived unit \(ML^2T^{-2}\) correct? i. moment of a force ii. work iii. acceleration

Ai only

Bii only

Ciii only

Di and ii

Eii and iii

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Question 1102

jamb 1984

The distance travelled by a particle starting from rest is plotted against the square of the time elapsed from the commencement of motion. The resulting graph is linear, the slope of this graph is a measure of

Ainitial displacement

Binitial velocity

Cacceleration

Dhalf the acceleration

Ehalf the initial velocity

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Question 1103

jamb 1983

The diagram above shows three circuits, the internal resistances of the batteries are negligible. which of the currents is the largest

AI₁

BI₂

CI₃

DI₄

EI₅

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Question 1104

jamb 1983

Which of the following figures gives the correct resultant R of two vectors P and Q?

BII

CIII

DIV

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Question 1105

jamb 1983

Each of the diagrams in Fig 6 represents two current-carrying conductors situated close to each other. In which two diagrams are the forces between the two wires attractive?

AI and V

BI and III

CII and IV

DII and V

EIII and IV

View Explanation & Discuss

Question 1106

jamb 1983

In the Figure above, QR is a vertical conductor and the current I flows from R to Q, P is a point on the horizontal plane and is to the south of the wire. The direction of the magnetic field at P due to the current is

AUpward

BNorth

CSouth

DWest

EEast

View Explanation & Discuss

Question 1107

jamb 1983

Four resistors R\(_1\),R\(_2\),R\(_3\), and R\(_4\) are connected in series as shown above, V\(_1\),V\(_2\),V\(_3\) are voltmeters connected as indicated above. Which of the following relations is correct??

AV1 = V3 =V2/2

BV1 = 2V2 = V3

CV1=1/2V3 =V3

DV2 - V1 = V3

View Explanation & Discuss

Question 1108

jamb 1983

the image above shows an inverted U-tube with the open end, O of one limb below the level, W of water in the tank, in order that water should begin to flow from the tank it is is necessary that

AThe U-tube is completely filled with water and that P should be higher that W

BP should be lower than O and W

CP should be lower than W and O should reach the botton of the table

DThe U-tube is completely filled with water and that P should be lower that W

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Question 1109

jamb 1983

PQ is a thin rod on a horizontal table, RS is a plane mirror inclined at \( 45^{\circ}C\) to the horizontal as shown above. The image of PQ as seen in the mirror by the eye T is

Ahorizontal

Bparallel to the mirror

Cat infinity

Dvertical

Ehighly magnified

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Question 1110

jamb 1983

Which of the following may be used to determine the relative humidity in a physics laboratory

I. Manometer
II. Wet-and-Dry Bulb Hygrometer
III. Hair Hygrometer
IV. A Hydrometer

AI Only

BII and III Only

CII Only

DIII Only

EII,IIIand IV Only

View Explanation & Discuss

Question 1111

jamb 1983

Longitudinal waves do not exhibit

ARefraction

BReflection

CDiffraction

DPolarization

ERarefaction

View Explanation & Discuss

Question 1112

jamb 1983

The specific latent heat of vaporization of a substance is always?

Aless than its specific latent heat of fusion

Bgreater than its specific heat of fusion

Cequal to its specific latent heat of fusion

Dall of the above depending on the nature of the substance

Enone of the above

View Explanation & Discuss

Question 1113

jamb 1983

If the force of a charge of 0.2 coulomb in an electric field is 4N, then the electric field intensity of the field is

A0.8

B0.8N/C

C20.0N/C

D4.2N/C

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Question 1114

jamb 1983

the speed of light in vacuum is 3.0 x 10⁸ms^-1. If the refractive index of a transparent liquid is \(\frac{4}{3}\), then the speed of light in the liquid is

A0.44 x 10 ⁸ms^-1

B2.25 x 10 ⁸ms^-1

C3.0 x 10 ⁸ms^-1

D4.0 x 10 ⁸ms^-1

E4.33 x 10 ⁸ms^-1

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Question 1115

jamb 1983

Which of the following best describes the energy changes which take place when a steam engine drives a generator which lights a lamp?

Aheat \( \to \) light \( \to \) sound \( \to \) kinetic

Bkinetic \( \to \) light \( \to \) heat \( \to \) electricity

Cheat \( \to \) kinetic\( \to \) electricity \( \to \) heat \( \to \) light

Delectricity \( \to \) kinetic \( \to \) heat v light

Eheat \(\ to \) sound \( \to \) kninetic v electricity

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Question 1116

jamb 1983

The difference of potential between the terminals of cells is 2.2 volts. When a 4ohm resistor is connected across the terminals of this cells, the potential difference is 2 volts. What is the internal resistance of the cell?

A0.10 ohms

B0.25ohms

C0.40ohms

D2.50ohms

E4.00ohms

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Question 1117

jamb 1983

An electric current of 3Aflowing through an electric heating elements of resistance 20 embedded in 1,000g of an oil raises the temperature of the oil by 10oC in 10 seconds then the specific heat capacity of the oil is

A1.8Jg^-1^oC

B0.6Jg^-1^oC

C0.18Jg^-1^oC

D18Jg^-1^oC

E0.06Jg^-1^oC

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Question 1118

jamb 1983

If the normal atmospheric pressure in a laboratory supports a column of mercury 0.76m high and the relative density of mercury is 13.8, then the height of water column which atmospheric pressure will support in the same laboratory at the same time is

A0m

B10m

C13m

D14m

E18m

View Explanation & Discuss

Question 1119

jamb 1983

A machine has a velocity ratio of 5. It requires a 50kg weight to overcome a 200kg weight. The efficiency is

A4%

B5%

C40%

D50%

E80%

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Question 1120

jamb 1983

A short response to time is obtained in liquid-in-glass thermometer when the

Abulb is large and thick-walled

Bstem is long and thin

Cbulb is small and thicked-walled

Dliquid is of high density and the bore is large

Ebulb is thin-walled and the liquid is a good conductor of heat

View Explanation & Discuss

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