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

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4,719 questions

Question 1 of 20 4,719 total questions

Question 821

waec 2011

A coin is pushed from the edge of a laboratory bench with a horizontal velocity of 15.0 ms^-1. If the height of the bench from the floor is 1.5m, calculate the distance from the foot of the bench to the point of impact with the floor [g = 10ms^-2]

A0.75m

B2.25m

C8.22m

D15.00m

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Question 822

waec 2011

An object of mass 5.0 kg moves with a velocity of 10ms^-1. Calculate its momentum.

A50.0 kgms^-1

B15.0 kgms^-1

C2.0 kgms^-1

D0.5 kgms^-1

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Question 823

waec 2011

Two simple pendulum A and B of equal lengths and of masses 5g and 20g respectively are located in the same environment. The periods TA and TB of their respective oscillations are related by the equations

AT_A = 4T_B

BT_A = \(\frac{1}{4} T_B\)

CT_A = T_B

DT_A = 5T_B

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Question 824

waec 2011

A body of mass 120g placed at the 10cm mark on a uniform metre rule makes the rule settle horizontally on a fulcrum places at 35cm mark. Calculate the mass of the rule

A60g

B80g

C120g

D200g

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Question 825

waec 2011

A stone of mass 300g is released from rest from the top of a bulding of height 100m. Determine the kinetic energy gained by the stone when it is a quarter way down from the point of release.[g = 10 ms^-2]

A750.0J

B225.0J

C75.0J

D22.5J

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Question 826

waec 2011

Which of the following propeties is not considered in choosing mercury as a thermomemetric liquid?

Adensity

Bexpansivity

Cconductivity

Dopacity

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Question 827

waec 2011

In the absence of gravitational force, the weight of the body is

Aits mass

Bzero

Cits density

Dits volume

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Question 828

waec 2011

The area under a velocity-time graph represents

Afinal velocity attained

Bdistance covered

Cacceleration

Dworkdone

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Question 829

waec 2011

The property of a fluid that is used to determine its suitability as a lubricant is its

Acapillarity

Bviscocity

Csurface tension

Drelative density

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Question 830

waec 2011

The pressure in a liquid

Ais the same at all points in the liquid

Bdecreases with depth

Cis the same in all directions at a given point

Dis equal to the atmospheric pressure

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Question 831

waec 2011

A metal rod of density 7000 kgm^-3 and cross-sectional area of 0.001257m² has a mass of 1.76kg. Calculate its length.

A0.20m

B0.25m

C0.40m

D0.50m

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Question 832

waec 2011

The density P of a spherical ball of diameter d and mass m is given by

AP = \(\frac{3m}{4 \pi d^3}\)

Bp = 4\(\pi md^3\)

Cp = \(\frac{6m}{\pi d^3}\)

Dp = \(\frac{3m}{2 \pi d^3}\)

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Question 833

waec 2011

Which of the following statements is not correct?

Amolecules of ice, water and water vapour have equal intermolecular distances

Bmolecules of ice, water and water vapour do not differ in the structure of their molecules

Cmolecules of water vapour attract each other with forces far less than the forces of attraction between water molecules

Dwater is less compressible than water vapour

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Question 834

jamb 2011

Two resistors 5Ω and 10Ω are arranged first in series and later in parallel to a 24V source, the ratio of total power dissipated in the series and parallel arrangements respectively is

A5:3

B1:50

C50:1

D3:5

ENo Correct Option

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Question 835

jamb 2011

In an A.C circuit, the ratio of r.m.s value to peak value of current is

B\( \frac{1}{2} \)

C\( \frac{1}{\sqrt{2}} \)

D\( \sqrt{2} \)

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Question 836

jamb 2011

In Homes, electrical appliances and lamps are connected in parallel because

AParallel connections do not heat up the wires

Bindependence switches can be used

Cless current will be used

Dless voltage will be used

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Question 837

jamb 2011

If the volume of a gas increases steadily as the temperature decreases at constant pressure, the gas obeys

AGraham's Law

BBoyle's Law

CPressure law

DCharles Law

ENo Correct Option

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Question 838

jamb 2011

In the circuit above, three resistors, 2Ω, 4Ω and 12Ω are connected in parallel and a 12V battery is connected across the combination. The current flowing through the 12Ω resistors is

A14.4 A

B1.0 A

C3.2 A

D9.6 A

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Question 839

jamb 2011

A length of wire has a frequency of 225Hz when stretched by a force of 225N. If the force increased to 324N, what is the new frequency of vibration?

A270 Hz

B512 Hz

C488 Hz

D356 Hz

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Question 840

jamb 2011

An image in a convex lens is upright and magnified 3 times. If the focal length of the lens is 15 cm, what is the object distance?

A10 cm

B25 cm

C16 cm

D14 cm

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