WAEC Past Questions and Answers - Page 4129

20,641.

A sound note of frequency 250 Hz and wavelength 1.3m is produced at a point near a hill. If the echo of the sound is received 1 second later at the point, how far away is the hill from the point?

A.

131.3m

B.

162.5m

C.

248.7m

D.

251.3m

E.

325.0m

View answer & explanation

Correct answer is B

No explanation has been provided for this answer.

20,642.

Which of the following wave characteristics can be used to distinguish a transverse wave from a longitudinal wave?

A.

Reflection

B.

Refraction

C.

Diffraction

D.

Polarization

E.

Interference

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

20,643.

Which of the following media allow(s) the transmission of sound wave through them?

I. Air
II. Liquid
III. Solid.

A.

I only

B.

II only

C.

III only

D.

I and II only

E.

I, II and III.

View answer & explanation

Correct answer is E

No explanation has been provided for this answer.

20,644.

A wire is stretched between two points, 1m apart. If the speed of the wave generated on plucking the wire is 200ms^-1, what is the minimum frequency which will resonate with the wire?

A.

50 Hz

B.

75 Hz

C.

100 Hz

D.

150 Hz

E.

200 Hz

View answer & explanation

Correct answer is E

No explanation has been provided for this answer.

20,645.

An object is placed on the principal axis at the centre of curvature of a concave mirror. The image of the object formed by the mirror is

A.

real, inverted and magnified

B.

at the principal focus

C.

real and diminished

D.

erect and virtual

E.

at the centre of curvature

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

Civic Education

Aptitude Tests

Spatial Reasoning Questions and Answers

Puzzles Questions and Answers

Nigeria General Knowledge Questions and Answers

Quantitative Reasoning Questions and Answers

Data Interpretation Questions and Answers

Verbal Reasoning Questions and Answers

Situational Judgement Questions and Answers

Abstract Reasoning Questions and Answers

Numerical Reasoning Questions and Answers

Microsoft Office Questions and Answers

Personality Test

Logical Reasoning Questions and Answers

Typing Speed and Accuracy Test

View latest jobs in Nigeria today