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Jamb 2002 Physics Past QuestionsQuestion 21:a ray of light which strikes a glass slab from air at normal incidence passes through the slab A. Undeviated and undisplaced at a lower speed B. Deviated and undisplaced at a lower speed C. Deviated and displaced at a lower speed D. Undeviated and displaced at a faster speed Question 22:blowing air over a liquid aids evaporation by A. Increasing its surface area B. Decreasing its vapour pressure C. Increasing its temperature D. Decreasing its density Question 23:The phenomenon that makes sound persist when its source has been removed is known as A. Acoustic vibration B. Rarefaction C. Echo D. Reverberation Question 24:the pressure of 3 moles of an ideal gas at a temperature of 27°C having a volume of 10-3m3 is A. 2.49 x 105Nm-2 B. 7.47 x 105Nm-2 C. 2.49 x 106Nm-2 D. 7.47 x 106Nm-2 Question 25:Vibration in a stretched spring cannot be polarized because they are A. Stationary waves B. Transverse waves C. Longitudinal waves D. Mechanical waves |
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