Waec 2023 Physics Question 10

Practice essay / theory question 10 from the 2023 Waec Physics examination. This question covers General .

Waec 2023 Physics Essay / Theory

Topic: General

Question 10 WAEC • 2023 • PHYSICS • essay

Question Parts

( a )

(i) Why are parabolic mirrors suitable for use in headlamps of vehicles?

( a )

(ii) Draw a ray diagram to illustrate the answer in 10a(i).

( b )

(i) State two applications of echoes.

( b )

(ii) An observer standing at a point, P, on the same horizontal ground as the foot, H, of a tower shouts and \( 1.20 s \) later, he hears the echo. He then moved to another point, \( \mathbf{Q}, 40 m \) from \( \mathbf{P} \), and shouts again but the echo was heard after \( 1.45 s \). Calculate the: I. distance between P and H; II. speed of sound in air.

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About This Question

This is Waec 2023 Physics Question 10. It is one of the essay questions from the 2023 Waec Physics examination.

The question covers General .

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