Vibrations and waves questions | form five Physics

State Huygens`s principle of wave contruction.

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A lens was placed with a convex surface of radius of curveture 50.0cm in contact with the plane surface such that Newton`s rings were observed when the lens was illuminated with monochromic light. If the radius of the 15^th ring was 2.13mm; dettermine the wavelength.

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What do you understand by the terms;

1. Progressive wave
2. Refraction of waves
3. Diffraction of waves
4. Standing wave

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Two progressive waves travelling in the opposite direction in the medium are represented by and . If the two progressive waves form a standing wave, determine the resultant amplitude and phase angle formed.

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The shortest length of the resonance tube closed at one end which resounds to fork of frequency 256Hz is 31.6cm. The corresponding length for a fork of frequency 384Hz is 20.5cm. Determine the end correction for the tube and the velocity of sound in air.

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