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139 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10

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139 questions

Question 1 of 20 139 total questions

Question 41

waec 2009

The period of a simple pendulum of length 80.0cm was found to have doubled when the length of the pendulum was increased by X. Calculate X.

A26.7cm

B40.0cm

C160.0cm

D240.0cm

View Explanation & Discuss

Question 42

waec 2009

Two forces 6N and 8N, act eastwards and northwards respectively on a body. Calculate the magnitude of their equilibrant

A2N

B7N

C10N

D14N

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Question 43

waec 2009

The following properties of a solid are measured on earth i. weight ii. specific heat capacity iii. density. Which of the properties will hav a different value if measured in space?

Ai only

Bii only

Ciii only

Dii and iii only

View Explanation & Discuss

Question 44

waec 2009

A moving body accelerates when it?

Achanges its direction at constant speed

Bmauntains a constant linear speed

Ccovers equal distances in equal times in a straight line

Dis acted upon by balanced forces

Enone of the above

View Explanation & Discuss

Question 45

waec 2009

A body moving in a circle at constant speed has i. a velocity tangent to the circle ii. a constant kinetic energy iii. an acceleration directed towards the circumference of the circle. Which of the statements above are correct?

Ai and ii only

Bii and iii only

Ci and iii only

Di, ii and iii

View Explanation & Discuss

Question 46

waec 2009

Which of the following types of types of motion will be produced when a pair of equal and opposite non-collinear parallel forces acts on a body?

Avibrational motion

Brandom motion

Ctranslational motion

Drotational motion

View Explanation & Discuss

Question 47

waec 2009

A body of volume 0.046m³ is immersed in a liquid of density 980kgm^-3 with \(\frac{3}{4}\) of its volume submerged. Calculate the upthrust on the body. [g = 10ms^-2]

A11.27N

B33.81N

C112.70N

D338.10N

View Explanation & Discuss

Question 48

waec 2009

In a hydraulic press, a force of 40N is applied to the smaller priston of area 10cm². If the area of the larger piston is 200cm², calculate the force obtained

A800N

B500N

C80N`

D50N

View Explanation & Discuss

Question 49

waec 2009

Which of the following properties of a steel bar can be measured in terms of the dimension of length only?

Aweight

Bdensity

Cpressure

Dvolume

View Explanation & Discuss

Question 50

waec 2009

In which of the following states of matter do the molecules vibrate about their mean positions?

Aliquids only

Bsolids only

Cliquids and gasses only

Dsolids, liquids and gases

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Question 51

jamb 2009

The process of energy production in the sun is?

Anuclear fission

Bnuclear fusion

Celectron collision

Dradioactive decay

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Question 52

jamb 2009

which of the diagrams above shows the position at which a small ball-bearing is in neutral equilibrium?

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Question 53

jamb 2009

A progressive wave is represented by \( y = 10 \text{Sin} (1000\pi t - \frac{\pi x}{34}) \) . two layers of the wave separated by 153cm have a phase difference of?

A270⁰

B45⁰

C90⁰

D180⁰

ENo Correct Option

View Explanation & Discuss

Question 54

jamb 2009

From the diagram above, if the potential difference across the resistor, capacitor and inductor are 80 v, 110 v, 40 v respectively, the effective potential difference is?

A116.3 V

B50.0 V

C230.0 V

D106.3 V

View Explanation & Discuss

Question 55

jamb 2009

Calculate the e.m.f of the cell in the above circuit if its internal resistance is negligible

A12 V

B8 V

C2 V

D36 V

View Explanation & Discuss

Question 56

jamb 2009

If a light wave has a wavelength of 500nm in air what is the frequency of the wave?
[c = 3 x 10\(^8\) ms-1]

A3.0 x 10¹⁴ Hz

B6.0 x 10¹⁴ Hz

C6.0 x 10¹² Hz

D2.5 x 10¹⁴ Hz

View Explanation & Discuss

Question 57

jamb 2009

The diagram above represents the graph of the force F applied in stretching a spiral spring against the corresponding extension (X). The force constant of the spring is?

A20 Nm^-1

B40 Nm^-1

C30 Nm^-1

D10 Nm^-1

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Question 58

jamb 2009

The wave phenomenon demonstrated in the diagram above is?

Areflection

Bdeflection

Cdiffraction

Drefraction

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Question 59

jamb 2009

The pressure of two moles of an ideal gas at a temperature of 27 °C and volume 10\(^-2\)m\(^3\) is?
[R = 8.313 J mol\(^{-1}\)K\(^{-1}\)]

A4.99 x 10⁵ Nm^-2

B9.80 x 10³ Nm^-2

C4.98 x 10³ Nm^-2

D9.80 x 10⁵ Nm^-2

View Explanation & Discuss

Question 60

jamb 2009

The terminal velocity of a ball-bearing falling through a viscous fluid is reached when the?

Aupthrust is equal to the weight of the ball

Bball accelerate uniformly

Cupthrust is equal to the velocity of the ball

Dvelocity is uniform

View Explanation & Discuss

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