WAEC Past Questions and Answers - Page 4194

20,966.

A simple microscope forms an image twice the size of the object. If the focal length of the lens of the microscope is 20m, how far is the object from the lens?

A.

10m

B.

20m

C.

30m

D.

40m

E.

60m

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

20,967.

Which of the following about a rhombus may not be true?

A.

The diagonals are equal

B.

The diagonals bisect the angles through which they pass

C.

The diagonals bisect each other

D.

The adjacent sides are equal

E.

Opposite angles are equal

View answer & explanation

Correct answer is A

No explanation has been provided for this answer.

20,968.

The eye defect illustrated by the diagram above is

A.

astigmatism

B.

long sightedness

C.

loss accommodation

D.

short sightedness

E.

colour blindness

View answer & explanation

Correct answer is B

No explanation has been provided for this answer.

20,969.

Mrs. Jones is expecting a baby. The probability that it will be a boy is 1/2 and probability that the baby will have blue eyes is 1/4. What is the probability that she will have a blue-eyed boy?

A.

1/8

B.

¹/₄

C.

3/8

D.

¹/₂

E.

3/4

View answer & explanation

Correct answer is A

(1/2)(1/4) = 1/8

20,970.

The diagram above shows an incident ray A, inclined at angle of 50^o to the interface CB. The ray OB is found to lie along the surface. What is the refractive index of the medium X with respect to air?

A.

sin50^o/sin40^o

B.

sin40^osin50^o

C.

sin90^o/sin50^o

D.

sin40^o/sin90^o

E.

sin90^o/sin40^o

View answer & explanation

Correct answer is E

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

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