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

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4,719 questions

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Question 1091

waec 2006

A solid body will float in a liquid if its

Adensity is less than that of a liquid

Bmass is equal to that of the liquid

Cdensity is greater than that of the liquid

Dmass is less than that of the liquid

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Question 1092

waec 2006

A block of volume 3 x 10⁵m³ and density 2.5 x 10³ kg m^-3 is suspended from a spring balance with \(\frac{2}{3}\) of its volume immersed in a liquid of density 900 kg m^-3. Determine the reading of the spring balance [g = 10ms^-2]

A0.18N

B0.57N

C0.75n

D0.93N

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Question 1093

waec 2006

Which of the following physical quantities are derived? i. Area ii. Thrust iii. Pressure iv. Mass

Ai, ii, iii and iv

Bi, ii and iii only

Ci, ii and iv only

Di and iii only

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Question 1094

waec 2006

Which of the following phenomena causes capillary of liquids in tubes of narrow bore?

Aviscosity

Bsurface tension

Cosmosis

Dbrownian motion

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Question 1095

jamb 2006

When the base current of a common-emitter transistor is kept at zero, it operates in the

Aactive-on region

Bbreakdown region

Csaturation region

Dcut-off region.

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Question 1096

jamb 2006

Use the figures above to answer the question below

Which of the following diagrams represents correctly an n-p-n transistor?

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Question 1097

jamb 2006

Use the diagram above to answer the question below.

Which of the following diagrams represents the magnetic field of two isolated unlike poles

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Question 1098

jamb 2006

The frequency of the wave in the diagram above is

A0.17 Hz

B0.25 Hz

C1.57 Hz

D1.05 Hz

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Question 1099

jamb 2006

A progressive wave equation is represented by y = a sin(150 πt - \(\frac{πx}{4}\)). if the phase difference of a progressive wave is 45°, the value of x in the equation is

A3 cm

B4 cm

C1 cm

D2 cm

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Question 1100

jamb 2006

An engine of a car of power 80 kW moves on a rough road with a velocity of 32 m\(s^-1\). The forces required to bring it to rest is

A2.56 x 10⁶N

B2.50 x 10⁶N

C2.80 x 10³N

D2.50 x 10³N

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Question 1101

jamb 2006

A shooter wants to fire a bullet in such a way that its horizontal range is equal to three times its maximum height. At the what angle should he fire the bullet to achieve this?

A68^o

B53^o

C30^o

D45^o

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Question 1102

jamb 2006

In a gas experiment, if the volume of the gas is plotted against the reciprocal of the pressure, the unit of the slope of the resulting curve is

Aforce

Btemperature

Cpower

Dwork

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Question 1103

jamb 2006

A mirror of weight 75N is hung by a cord from a hook on the wall. If the cord makes an angle of 30o with horizontal, the tension in the cord is

A100N

B1500N

C250N

D150N

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Question 1104

jamb 2006

In the diagram above, the pressure of the gas is

A86 cm of mercury

B66 cm of mercury

C96 cm of mercury

D76 cm mercury

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Question 1105

jamb 2006

The diagram above represents the stress-strain graph for a typical metal rod. What does the X represent?

ABreaking point

BYield point

CElastic limit

DProportional limit

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Question 1106

jamb 2006

A conductor has a diameter of 1.00 mm and length 2.00m. if the resistance of the material is 0.1Ω, its resistivity is?

A2.55 x 10⁵ Ωm

B2.55 x 10² Ωm

C3.93 x 10^-6 Ωm

D3.93 x 10^-8 Ωm

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Question 1107

jamb 2006

A person can focus objects when they lie beyond 75 cm from his eyes. The focal length of the lens required to reduce his least distance of distinct vision to 25 cm is?

A37.50 cm

B75.00 cm

C18.75

D25.00 cm

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Question 1108

jamb 2006

The wavelength of the first overtone of a note in a closed pipe of length 33 cm is?

A33 cm

B44 cm

C22 cm

D17 cm

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Question 1109

jamb 2006

Non-luminous object can be seen because they

Areflect light

Bare near

Care polished

Demit light

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Question 1110

jamb 2006

A submarine is observed to rise from a real depth of 80 m to 60 m in water. Calculate the change in apparent depth.
[Refraction index of water \(\frac{4}{3}\)]

A45 m

B80 m

C15 m

D60 m

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