Lab Ripple Tank.docx

# Lab Ripple Tank.docx - Experiment of Reflection Equipments...

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Experiment of Reflection Equipments Needed • Ripple Tank • Long Barrier • Curved Barrier • Ripple Generator and Light Source • Plane Wave Dipper • Ruler • Large Rod Stand (ME-8735) • 90-cm Rod (ME-8735) • A3 Paper • Protractor • Drawing Compass The purpose of the experiments is to study the reflection of plane water waves from different shaped barriers, a long barrier and a curved barrier Section 1 – Theory When a ray of water waves approaches a barrier, it reflects from the surface. Ray actually symbolizes the direction of the wave fronts. The angle formed between the incident ray and the normal to the reflected surface is called ‘Angle of Incidence’. The reflected ray also forms an angle with the normal and this angle is called ‘Angle of Reflection’. In case of reflection, the fundamental theory is that the angle of incidence is always equal to angle of reflection. Part 1 – Reflection using straight barrier

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. The focus of this experiment was to prove the relation between angle of incidence(<i) and angle of reflection (<r) I.e. angle of reflection is equal to angle of reflection. Formula for percentage error: (< r 0 - <i 0 )/<i 0 x 100(add your own symbols) NOW DATA ANALYSIS EXP 2 – Reflection using curved barrier
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