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HELP ME PLEASE 2 The diagram shows an incident ray being refracted after hitting a boundary. a Describe an).r changes in the velocity and frequency

HELP ME PLEASE

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2 The diagram shows an incident ray being refracted after hitting a boundary. a Describe an).r changes in the velocity and frequency of the wave as it enters the new medium [2 marks) in As well as refraction, what else can happen to a wave when it meets a boundary? Name one. {1 manic)

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