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Physics Past Questions

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95 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10

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95 questions

Question 1 of 15 95 total questions

Question 41

jamb 2016

A boy in a barber's shop sits between two parallel mirrors. The number of images observed by him will be

AInfinite

BTen

CEight

DForty

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Question 42

jamb 2016

The heat required to raise a mass of a substance through 1K is known as

ASpecific heat capacity

BSpecific latent heat of vaporization

CCapacity latent heat of fusion

DHeat capacity

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Question 43

jamb 2016

The rate of cooling of a heated quantity of liquid in an enclosure depends on the

APressure of the liquid

BTemperature in the enclosure

CPressure of the enclosure

DVolume of the liquid

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Question 44

jamb 2016

When an athlete perspires after running, he loses heat through

AEvaporation

BConduction

CRadiation

DConvection

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Question 45

jamb 2016

A wire of length 10m is cooled from 50oC to 10oC. Calculate the decrease in the length of the wire. [c = 3 x 10-5K-1]

A1.8 x 10^-4m

B1.5 x 10^-4m

C1.2 x 10^-2m

D1.8 x 10^-3m

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Question 46

jamb 2016

What is the angular magnification of a telescope having objective and eyepiece lenses of a focal lengths 30cm and 3cm respectively?

A60

B10

C30

D90

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Question 47

jamb 2016

The instrument used to view stars is the

APrism binoculars

BTelescope

CFilm projector

DMicroscope

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Question 48

jamb 2016

Which of the following statements is correct about a machine?

AEfficiency of a machine is always greater than I

BEfficiency decreases with an increase in friction

CVelocity ratio depends on friction

DMechanical advantage increases with an increase in friction

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Question 49

jamb 2016

An object is placed 15cm in front of a plane mirror. If the mirror is moved further 5cm away from the object and the image is

A80cm

B40cm

C50cm

D70cm

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Question 50

jamb 2016

If the distance between the object and the pinhole of a pinhole camera is reduced by half the size of the image of the object

AIs quadrupled

BIs halved

CRemains the same

DIs double

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Question 51

jamb 2016

I.Chemical II.Sound III.Electricity

Which of the above forms of energy can directly be converted to light energy?

AI and II only

BII and III only

CI, II and III

DI and III only

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Question 52

jamb 2016

A satellite moves in a circular orbit of radius 4R round the earth. The acceleration of the satellite in terms of g is

A\(\frac{g}{16}\)

B\(\frac{g}{4}\)

C\(\frac{4}{g}\)

D\(\frac{16}{g}\)

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Question 53

jamb 2016

What happens to a water pool on a day when the humidity of the air is very low?

ATemperature decreases

BSlow evaporation

CTemperature increases

DRapid evaporation

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Question 54

jamb 2016

A charged particle is moving in a uniform magnetic field. if the direction of motion of the charged particle is parallel to the magnetic field, the path of the charge will

ABe a straight line

BCurve inwards

CBe a parabola

DCurve outwards

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Question 55

jamb 2016

Myopic defects in the human eye can be corrected through the use of a

AConcave Mirror

BConcave lens

CPrism

DConvex lens

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