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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 151

jamb 2023

What happens to the resistance of a wire when its length is doubled?

Adoubles

Bhalves

Cquadruples

Dstays same

Question 152

jamb 2023

The formula for work done is:

AForce ?? Distance

BForce ?? Time

CMass ?? Velocity

DPower ?? Time

Question 153

jamb 2023

Which of the following is a vector quantity?

Aspeed

Bmass

Cacceleration

Denergy

Question 154

jamb 2023

Speed is a measure of distance divided by:

Atime

Bforce

Cmass

Dpower

Question 155

jamb 2023

The SI unit of force is the:

AJoule

BNewton

CWatt

DPascal

Question 156

jamb 2022

If an object just begins to slide on a surface inclined at 30º to the horizontal,the coefficient of friction is?

A√3

B\(\frac{√3}{2}\)

C\(\frac{1}{√2}\)

D\(\frac{1}{√3}\)

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Question 157

jamb 2022

The mercury column in the barometer at notational atmospheric pressure has a height of?

A0.76 cm at see level

B760 cm at sea level

C7.6 cm at sea level

D76 cm at sea level

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Question 158

jamb 2022

One of the following is a scalar quantity?

Aweight

Bmomentum

Cpotential energy

Ddisplacement

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Question 159

jamb 2022

A semiconductor is formed by?

Aco-ordinate bonds

Belectrovalent bonds

Ca substance free of bonds

Dcovalent bonds

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Question 160

jamb 2022

The main factor which affects the speed of sound wave is the?

Aproperties of the medium

Bamplitude of the sound wave

Cintensity of the sound wave

Dloudness of the sound wave

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Question 161

jamb 2022

A train of mass 1600 kg attains a speed of 25 ms\(^{-1}\) in 20 seconds. The power developed in the engine is?

A2.5 KW

B80 KW

C25 KW

D50 KW

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Question 162

jamb 2022

What quantity of heat is required to convert 20 g of ice at 0 ºC to water at the same temperature? (Specific latent heat of ice = 336 Jg\(^{-1}\))

A7.06 x 10\(^{3}\)J

B5.38 x 10\(^{3}\)J

C6.72 x 10\(^{3}\)J

D1.35 x 10\(^{3}\)J

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Question 163

jamb 2022

The graph of pressure (P) against the reciprocal of the volume (I/V) in Boyles's law is a?

Ahyperbola

Bparabola

Ccurve

Dstraight line

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Question 164

jamb 2022

Which expression gives magnetic flux?

AqVB sin\(\theta\)

B\(\frac{\mu \phi I}{2 \pi r}\)

CBA cos \(\theta\)

D-N \(\frac{d \phi}{dt}\)

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Question 165

jamb 2022

The amount of energy required to change a kilogram of ice block into water without a change in temperature is?

Aspecific latent heat of fusion of ice

Bspecific heat capacity of ice

Cheat capacity of ice

Dspecific heat of vaporization of ice

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Question 166

jamb 2022

The gravitational pull on the moon is \(\frac{1}{6}\) that of the earth. If a body weighs 6.0 N on the moon, what will be the weight on the earth?

A6.0 N

B5.0 N

C12.0 N

D36.0 N

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Question 167

jamb 2022

The eclipse of the moon occurs when?

Athe moon reflects the rays from the sun to the earth

Bthe moon comes exactly between the earth and the sun

Cthe earth comes exactly between the moon and the sun

Dthe sun comes exactly between the earth and the moon

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Question 168

jamb 2022

In order to view the sun, the most suitable instrument to use is?

Ahelioscope

Btelescope

Cstroboscope

Dsun meter

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Question 169

jamb 2022

Which component of fiber-optic connector has a provision of entry for the fibre along with the fixation to connector housing?

Acoupling device

Bcable

Cferrule

Dconnector housing

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Question 170

jamb 2022

In the formation of sea breeze, wind blows from?

Asky to land

Bsea to sky

Cland to sea

Dsea to land

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