Waec 2022 Physics Question 10

Practice essay / theory question 10 from the 2022 Waec Physics examination. This question covers Quadratic Functions, Construction / Geometry .

Waec 2022 Physics Essay / Theory
Topics: Quadratic Functions Construction / Geometry
Question 10 WAEC • 2022 • PHYSICS • essay

10(a) State one condition each necessary for each of the following occurrences (i) constructive interference of waves; (ii) total internal reflection; (iii) production of beats (b) In a resonance tube experiment using a tuning fork of frequency 256 Hz , the first position of resonance was \( 35 c m \), the next position was \( 100 c m \). Calculate the velocity of sound in air from the experiment. (c)(i) State the three classifications of musical instruments. (ii) Give one example each of the classifications stated in 10c(i). (d) Calculate the critical angle for light travelling from glass to air. [refractive index of glass = 1.5] (e) The speed of sound in a medium at a temperature of 102 °C is \( 240 \mathrm{~ms}{ }^{-1} \). If the speed of sound in the medium is \( 310 m s^{-1} \). Calculate its temperature.

Question Parts

( a )
(i) State one condition necessary for constructive interference of waves.
( a )
(ii) State one condition necessary for total internal reflection.
( a )
(iii) State one condition necessary for production of beats.
( b )
In a resonance tube experiment using a tuning fork of frequency 256 Hz , the first position of resonance was \( 35 c m \), the next position was \( 100 c m \). Calculate the velocity of sound in air from the experiment.
( c )
(i) State the three classifications of musical instruments.
( c )
(ii) Give one example each of the classifications stated in 10c(i).
( d )
Calculate the critical angle for light travelling from glass to air. [refractive index of glass = 1.5]
( e )
The speed of sound in a medium at a temperature of 102 °C is \( 240 \mathrm{~ms}{ }^{-1} \). If the speed of sound in the medium is \( 310 m s^{-1} \). Calculate its temperature.

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About This Question

This is Waec 2022 Physics Question 10. It is one of the essay questions from the 2022 Waec Physics examination.

The question covers Quadratic Functions, Construction / Geometry .

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