GCSE Science - Physics
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Look at the diagram below. The probe emits a pulse of ultrasound into the eye. In order to calculate the length, L, of the eyeball, we need to know the
time taken between emitting the pulse and the detecting its echo. What other value do we need to know?
Utrasound echoes can be used to steals the length () ef an eyeball
fyebel
Exit f
Ultrasound probe