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Physics Past Questions

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48 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10

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Past Questions

48 questions

Question 1 of 20 48 total questions

Question 1

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 2

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 3

jamb 2022

One of the following is a scalar quantity?

Aweight

Bmomentum

Cpotential energy

Ddisplacement

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Question 4

jamb 2022

A semiconductor is formed by?

Aco-ordinate bonds

Belectrovalent bonds

Ca substance free of bonds

Dcovalent bonds

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Question 5

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 6

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 7

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 8

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 9

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 10

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 11

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 12

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 13

jamb 2022

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

Ahelioscope

Btelescope

Cstroboscope

Dsun meter

View Explanation & Discuss

Question 14

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 15

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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Question 16

jamb 2022

Which of these is a second-class lever?

Asugar tongs

Bclaw hammer

Cplier

Dwheelbarrow

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Question 17

jamb 2022

Water is not a good thermometric liquid because it?

Aexpands unevenly between 0 ºC and 4 ºC

Bmaintains fixed density

Chas low freezing point

Dwets glass

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Question 18

jamb 2022

A reservoir is filled with liquid of density 2000 kgm\(^{-1}\). Calculate the depth at which the pressure in the liquid will be equal to 9100 Nm\(^{-2}\) (g = 10 ms\(^{-2}\))

A0.262 m

B0.664 m

C0.819 m

D0.455 m

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Question 19

jamb 2022

The potential energy in an elastic string of force constant k, which has an extension X is?

AkX

BKX\(^{2}\)

C½KX\(^{2}\)

D½K

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Question 20

jamb 2022

The vapour pressure?

Aincreases non-linearly with measuring temperature

Bincreases linearly with increasing temperature

Cdecreases linearly with increasing temperature

Ddecreases non-linearly ith measuring temperature

View Explanation & Discuss

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