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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 1341

neco 2002

A short response time is obtained in a liquid-in-glass thermometer when the

Abulb is large and thick-walled

Bbulb is small and thick-walled

Cstem is long and thin

Dliquid is of high density and the bulb is large

Ebulb is thin-walled and the liquid is a good conductor of heat.

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Question 1342

neco 2002

A body is uniformly accelerated from rest. Which of the following quantities vary/varies linearly with the square of the time?

I. Displacement
II. Velocity
III. Momentum

AI only

BII only

CIII only

DI and II only

EII and Ill only

View Explanation & Discuss

Question 1343

neco 2002

An object weighing 0.60N is hung on a spiral spring and caused it to extend by 6.0cm. The object is removed and a black of wood replacing it causes the spring to extend by 10.0cm. What is the weight of the block of wood?

A0.10N

B0.36N

C0.80N

D1.00N

E3.60N

View Explanation & Discuss

Question 1344

neco 2002

When a current of 1 .0A flows in an electrolyte for 3.0h, a mass of 1 .0g is deposited. What mass will be deposited in 10.0h if a current of 3.0A flows through the electrolyte?

A30.0g

B24.0g

C10.0g

D6.0g

E0.4g

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Question 1345

neco 2002

Which process will increase the rate of oscillation of a pendulum?

Adecreasing the amplitude of oscillation of the pendulum

Bdecreasing the length of the pendulum

Cdecreasing the mass of the pendulum

Dincreasing the length of the pendulum

Eincreasing the mass of the pendulum.

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Question 1346

neco 2002

Lenz’s law of electromagnetic induction states that

Ae.m.f. is induced in a circuit whenever there is a change in the magnetic flux linked with the circuit

Bthe induced e.m.f. in a circuit is proportional to the rate of change f the number of lines of force linking the circuit

Cthe induced current in a conductor is in such a direction as to oppose the change producing it

Da force is exerted in a current-carrying conductor in a magnetic field.

Ethe induced e.m.f. is proportional to the current producing the magnetic flux.

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Question 1347

neco 2002

What is stored by a dry Leclanhé cell?

Achemical energy

Bheat energy

Cmechanical energy

Dnuclear energy

Esolar energy

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Question 1348

neco 2002

An object is projected with a velocity of 50ms-1 from ground level at an angle θ to the vertical. If the total time of flight of the projectile is 5s, what is the value of θ? (g = 10ms-2)

A0°

B30°

C45°

D60°

E90°

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Question 1349

neco 2002

Which radiation is emitted when a beam of fast moving cathode rays is stopped by a heavy element?

AAlpha rays

BGamma rays

CPositive rays

DUltraviolet rays

EX-rays

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Question 1350

neco 2002

The use of electrical fuses in domestic wiring is

Ato prevent and electrical shock

Bto supply electricity to all the electrical appliances

Cto allow electricity to flow easily through the mains to all the circuits

Dto cut off the mains supply it too high a current flows

Eto fuse all the circuit into one

View Explanation & Discuss

Question 1351

neco 2002

What does NOT affect the rate of evaporation of a liquid

Aexposed surface area of the liquid

Bhumidity of the surroundings

Cnature of the liquid

Dtemperature the liquid

Evolume of the liquid.

View Explanation & Discuss

Question 1352

neco 2002

If the refractive index of water is 1.33, what is the critical angle for a water-air boundary?

A36.0 °

B40.2 °

C41.8 °

D48.8 °

E62.7 °

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Question 1353

neco 2002

A negatively charged rod is brought near the cap of an electroscope. The cap is earthed momentarily while the charge is near to it. The rod is then removed. Which statement is correct?

AThe cap will be positively charged and the leaf will be negatively charged

BThe cap will be negatively charged and the leaf will be positively changed

CThe cap and the leaf will be positively charged

DThe cap and the leaf will be negatively charged

Enone

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Question 1354

neco 2002

A man stands in front f a high wall and produces a sound. If he receives the echo of the sound four seconds later, what is his distance from the wall? [The speed of sound in air is 330ms^-1]

A1320m

B660m

C400m

D330m

E165m

View Explanation & Discuss

Question 1355

neco 2002

If the size of the hole of a pinhole camera is increased, the image formed becomes

Abrighter and blurred

Bbrighter and larger

Cbrighter and sharper

Dblurred and duller

Eblurred and larger

View Explanation & Discuss

Question 1356

neco 2002

If the temperature of a resistance wire is gradually increased, its resistance will

Adecrease gradually

Bfirst increase and then decrease

Cfirst increase and then remain the same

Dincrease gradually

Eremain the same

View Explanation & Discuss

Question 1357

neco 2002

A body of weight 20N displaces 12N of the liquid in which it is immersed. What is the upthrust of the liquid on the body?

A240N

B32N

C20N

D12N

E8N

View Explanation & Discuss

Question 1358

neco 2002

In which simple machine is the effort applied between the load and the fulcrum?

Aclaw hammer

Bnut crackers

Cpliers

Dsugar tongs

Ewheelbarrow

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Question 1359

neco 2002

A body executing a simple harmonic motion has an angular velocity of 22 radians per second. If it has a maximum displacement of 10cm, what is its linear velocity?

A1100ms^-1

B440 ms^-1

C220 ms^-1

D22 ms^-1

E2.2ms^-1

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Question 1360

neco 2002

A block of ice of mass 10kg at 0°C absorbs heat energy from its surroundings and changes to water at the same temperature. The heat absorbed is referred to as

Aheat capacity

Blatent heat

Cspecific heat

Dspecific heat capacity

Especific latent heat.

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