WAEC Past Questions and Answers - Page 4130

20,646.

Which of the following is not self-luminous?

A.

Incandescent electric bulb

B.

Incandescent fluorescent tube

C.

Lighted candle

D.

The moon

E.

The sun

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

20,647.

The image of any real object formed by a diverging lens is always

A.

inverted

B.

magnified

C.

erect

D.

real

E.

the same size as the object

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

20,648.

Light travels in straight lines. In which of the following is this principle manifested?

I. Pinhole camera
II Formation of shadows
III. Diffraction of light
IV. Occurrence of eclipse

A.

I and III only

B.

II and III only

C.

I, II and III only

D.

I, II and IV only

E.

I, II, III and IV

View answer & explanation

Correct answer is E

No explanation has been provided for this answer.

20,649.

A ray of light is incident on a body x as shown in the diagram above. What is the refractive index of the body?

A.

1.63

B.

1.50

C.

1.49

D.

1.33

E.

1.02

View answer & explanation

Correct answer is A

No explanation has been provided for this answer.

20,650.

A ray of light is incident on mirror m1 and after reflection is incident on mirror m₂ as shown in the diagram, calculate the angle of reflection of the ray at mirror m₂

A.

120^o

B.

90^o

C.

60^o

D.

45^o

E.

30^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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