WAEC Past Questions and Answers - Page 4124

20,616.

The diagram above represents a portion of a micrometer screw gauge in which the horizontal scale is in millimetres. What is the reading on the instrument?

A.

3.72mm

B.

3.50mm

C.

3.30mm

D.

3.28mm

E.

3.22mm

View answer & explanation

Correct answer is E

No explanation has been provided for this answer.

20,617.

Which of the following is used for shielding radioactive fall-outs?

A.

Plastic

B.

Wood

C.

Textile

D.

Aluminium

E.

Lead

View answer & explanation

Correct answer is E

No explanation has been provided for this answer.

20,618.

Which of the following cannot be explained by the molecular theory of matter?

A.

Conduction

B.

Radiation

C.

Convection

D.

Evaporation

E.

Expansion

View answer & explanation

Correct answer is B

No explanation has been provided for this answer.

20,619.

Which of the following is not a product of nuclear fission?

A.

Alpha particle

B.

Beta particle

C.

Gamma ray

D.

X-ray

E.

Neutron

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

20,620.

A moving-coil meter with an internal resistance of 100Ω has a full-scale deflection when a current of 10m2 flows through it. What value of resistance would convert it to read 10V at full- scale deflection?

A.

20

B.

100

C.

600

D.

900

E.

1000

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

WAEC Subjects

English Language

Agricultural Science

Physical Education

Further Mathematics

Literature in English

Islamic Religious Knowledge

Christian Religious Knowledge

Office Practice

Civic Education

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