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115 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10

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115 questions

Question 1 of 20 115 total questions

Question 31

jamb 2015

The eyeball consists of a round tough white skin called

ASclerotic

BChoroid coal

COptical fiber

DAccommodation

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Question 32

jamb 2015

The net movement of solvent molecules from a region of high solvent potential to a region of lower solvent potential through a partially or semi permeable membrane is refer to as

ADiffusion

BOsmosis

CSurface tension

DCohesion

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Question 33

jamb 2015

A regular spacing or arrangement of atoms in a crystalline material is called

AOrbit

BLattice

CAtomic structure

DEnergy level

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Question 34

jamb 2015

Heat transfer by convection will take place in one the following substance.

AStone

BWood

CMercury

DWater

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Question 35

jamb 2015

The r.m.s value of a supply voltage is quoted at 200v. What is the approximate peak value of the voltage?

A200volts

B300volts

C283volts

D250volts

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Question 36

jamb 2015

A good electric cell should have the following except

AA minimum of polarization effect

BA long life

CA cheap and safe electrolytes

DCost and dangerous of the cell

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Question 37

jamb 2015

The dimension of universal gravitational constant is……….?

A\( M^{–1}L^3 T^{–2} \)

BML³T²

CML³

DMLT^-2

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Question 38

jamb 2015

What is the S.I unit of relative density?

Akg m^-2

Bkg m²

Ckg cm³

Dhas no S.I unit

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Question 39

jamb 2015

If a projectile has maximum range of 36m, find the speed of projection (Take g = 9.8m/s2)

A19m/s

B2m/s

C4m/s²

D7m/s²

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Question 40

jamb 2015

Neutron were discovered by

AJ.J. Thompson

BJames Chadwick

CMichael faraday

DDalton

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Question 41

jamb 2015

The two liquids which are often used in thermometer on experiment basic is known as

AMercury only

BAlcohol and Water

CMercury and Alcohol

DAlcohol only

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Question 42

jamb 2015

Transformers are designed so that energy losses are reduced to a minimum. This is achieved through which of these process?

I. Using a soft iron ore
II. Laminating the iron core to reduce energy loses due to eddy current
III. Designing an efficient iron core

AI & II only

BII only

CI, II, & III only

DIII only

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Question 43

jamb 2015

Which of the following will increase the boiling point of water?

I. Taking it to a high altitude
II. Dissolving a salt into it
III. Heating it in a sealed flask
IV. Increasing the rate of heat supply

.

AI only

BIII & IV only

CII & III only

DII only

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Question 44

jamb 2015

The strength of an electromagnet increases with

AIncreases in the number of turn of the coil

BDecreases in current with the coil

CIncreases in the distance between the pole

DIncreases in current without the coil

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Question 45

jamb 2015

A radioactive source emits X–rays of very short wavelength (10\(^{-13}\)m ). What is the frequency of these rays?

A2 × 10¹⁸HZ

B3 × 10 ¹⁹HZ

C3 × 10²¹HZ

D3 × 10^-19HZ

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Question 46

jamb 2015

The symbol ₋₁⁰X used to represent which of the particles?

AProton

BNeutron

CElectrons

DAtoms

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Question 47

jamb 2015

The optical instrument which is suitable for viewing a nearby objects is ………..?

ATelescope

Bsextant

Cmicroscope

Dperiscope

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Question 48

jamb 2015

If an object whose mass is 3kg moves in a circular path of a radius 0.7m, records a speed at 2m/s. What is the result of the angular velocity?

A4 rads^–1

B1rads–1^–1

C3^–1rads–1

D4rads–1^–1

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Question 49

jamb 2015

A structural engineer stood on a top of a building releasing a light and heavy object to the ground which of the following statement is true?(Neglect Air Resistance)

ABoth the light and heavy subject reach the ground at the same time

BThe light object get to the ground first before the heavy object

CThe heavy object to the ground first before the light object

DNone get to the ground first

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Question 50

jamb 2015

For a best result using temperature to achieve an accurate measurement, it is best to use

AMercury thermometer

Bgas thermometer

Cclinical thermometer

Dalcohol thermometer

View Explanation & Discuss

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