Question

A listener x hears a sound level of 50 db when he is at a distance 1 km from the instrument. another listener y at a distance 10 km from the instrument hears a sound level of _____

Answer 1

Answer:

★ A listener x hears a sound level of 50 db when he is at a distance 1 km from the instrument. another listener y at a distance 10 km from the instrument hears a sound level of 0.5 dB.

Step-by-step-explanation:

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As per the given question,

★ Here is the clear explanation about the question, step by step, In the given question the listener 'x' is the first person ans listener 'y' is the second person.

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★ Listener x hears a sound of 50 db whereas at a similar distance of 1 kilometer from the instrument the second listener y at the 10 kilometer from the instrument here the sound, now let's calculate at what level the listener y hears the sound.

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So, from the above data we collected,

• ★ Listener (x) = 1 km.
• ★ Listener (y) = 10 km.

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We know that,

★ Sound intensity/Distance ★

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Calculations:

For listener (x):-

⇢ 50 db km²/1

⇢ 50 db

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For listener (y):-

⇢ 50 db km²/10²

⇢ 50 db km²/100

⇢ 0.5 db

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Therefore, 0.5 db is the required answer.

Answer 2

Answer:

The diagonals of a rhombus bisect each other at right angles (90°). ... In any rhombus, the diagonals (lines linking opposite corners) bisect each other at right angles (90°). That is, each diagonal cuts the other into two equal parts, and the angle where they cross is always 90 degrees.