7. Water waves strike a break-wall near a beach to calm the water close to shore and make it easier for boats to move around. A small gap in the break-wall started to form due to erosion, and significant diffraction could be observed. As the gap formed and became larger, the diffraction started to decrease until it was barely noticeable when the gap reached 1.75m long. Determine the wavelength of the waves passing through the break-wall. Beach Disintegrating wall Вeach Beach

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A: The given values are, v1=66 cm/s=0.66 m/sλ1=9.88 cm=0.0988 mv2=35 cm/s=0.35 m/s

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A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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A: Required : How does cupping of both hands increase the range of sound.

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A: Required Which type of wave interference will result in a wave with the smallest amplitude.

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A: #3 Given data: The length of wave is λ=6 cm. The frequency of wave per second is f=4.8 s-1.

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A: Note: As per the guidelines, we can only answer a single question. Sorry for the inconvenvenience.…

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A: (1) Luminous intensity, I = 120 cdDistance, r = 0.025 m (2) Luminous intensity, I = 250 cdDistance,…