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65 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10

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65 questions

Question 1 of 20 65 total questions

Question 21

jamb 2015

At what respective value of a, b, and c would the unit of work, the joule, be dimensionally similar to M^a L^b T^c?

A1, – 2, 1

B1, 2, – 2

C1, 1, –2

D2, 2, 1

View Explanation & Discuss

Question 22

jamb 2015

The compressed regions and the space-out regions in longitude wave are refers to as

ACompression and Rarefaction

BComparison and Explosion

CReflection only

DRefraction only

View Explanation & Discuss

Question 23

jamb 2015

Radio waves belong to the class of wave whose velocity is about

A34m/s

B3 ×10⁶m/s

C3 ×10⁸m/s

D3 × 10^-8m/s

View Explanation & Discuss

Question 24

jamb 2015

A member of the crew of a SPACESHIP experiences weightlessness in a space when they

AFall freely from the earth’s gravitational field

BIs walking on the planet

CIn between the sun and the earth

DHolding anything in space is negative

View Explanation & Discuss

Question 25

jamb 2015

Convert 45°C to kelvin

A318K

B250K

C184K

D120K

View Explanation & Discuss

Question 26

jamb 2015

The external parts of an object can be measure accurately through the use of which scientific instrument?

AMicrometer screw gauge

BVernier Caliper

CMeter rule

DNone of the instrument

View Explanation & Discuss

Question 27

jamb 2015

What is the relationship mechanical advantage (MA) velocity Ratio (V.R) and efficiency with percentage?

Ae = M.A/V.R × 100 %

BM.A = E.V.R

CV.R = 1 ÷ sin θ M.A

DM.A = 1/E × 100%

View Explanation & Discuss

Question 28

jamb 2015

Electrons were discovered by

AJames Chadwick B.

BJ.J Thompson

CSir Isaac Newton

DCharles Newton

View Explanation & Discuss

Question 29

jamb 2015

Primary colours of light are

ARed, blue and green

BCyan, magneta and yellow

CBlack, blue and green

DNone of these colours

View Explanation & Discuss

Question 30

jamb 2015

Mr. F. Abioye observed his image through a plane mirror, kept at a distance 4.7m away from him in his room. At what distance is the image found from Abioye's eye?

A9.4m

B7.5m

C5.7m

D6.9m

View Explanation & Discuss

Question 31

jamb 2015

Calculate the gravitation force of attraction between two planets of \(10^{24}\)kg and \(10^{27}\)kg separated by a distance of \(10^{20}\)meters

A6.67N

B6.56N

C7.5N

D8.6N

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Question 32

jamb 2015

If an object is placed at a height of tem above the ground at a stationary point. It posses what types of energy?

AMechanical energy

BStationary energy

CPotential energy

DVibrational energy

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Question 33

jamb 2015

In which of the following device is the expansion of solid not required?

I. Simple pendulum
II. Fire alarms
III. Thermostat
IV. Bimetallic thermometer

AIII only

BII & III only

CI only

DII, III & IV only

View Explanation & Discuss

Question 34

jamb 2015

A vector quantity can only be completely described when ……… and …………are mentioned.

AMagnitude and motion

BMagnitude and direction

CDistance and specified displacement

DMoment and momentum

View Explanation & Discuss

Question 35

jamb 2015

The resultant force of a couple is ………?

AInfinity

BZero

COne

DHalf

View Explanation & Discuss

Question 36

jamb 2015

Which of the following is not luminous object?

AThe sun

BThe moon

Clight candle

DStar

View Explanation & Discuss

Question 37

jamb 2015

A motor boy of a driver saw what seems to appear to be a pool of water a head of him, while his driver drives a new truck on a sunny day. Which of the following explains his observation?

AHe saw a flying objects

BHe must be thinking of water and food

CHe was seeing the shadow of the car

DThe sun ray from the sky were passing from a hot air (layer) to cold layer

View Explanation & Discuss

Question 38

jamb 2015

The general gas law can be written as

APV ÷ T = a constant

BPV = a constant

Cv/t = a constant

Dp/T = a constant

View Explanation & Discuss

Question 39

jamb 2015

Body floats in fluid when its …………………

ADisplaces its own volume of the liquid (fluid)

BDisplaces its own weight of the fluid

CDisplace its own density of the fluid

DIs no longer subjected to gravity

View Explanation & Discuss

Question 40

jamb 2015

In an elastic collision

I. Energy is conserved
II. Energy is decreased
III. Energy is increased
IV. Linear momentum conserved

AI only

BI and IV only

CII only

DIII only

View Explanation & Discuss

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