Its true hopefully this helps you.
Answer:
1. What type of wave is sound?
2.Does sound need a medium to travel through?
3. What are the properties of sound waves?
Explanation:
1. The type of waves sound are is mechanical waves.
2. Sound needs a solid, liquid or gas (material medium) to travel through.
3. I believe they are wavelength, amplitude, frequency, time period and velocity.
I apologize if it is incorrect-
I hope it helps! Have a great day!
Anygays-
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Answer:
Resistance of the circuit is 820 Ω
Explanation:
Given:
Two galvanometer resistance are given along with its voltages.
Let the resistance is "R" and the values of voltages be 'V' and 'V1' along with 'G' and 'G1'.
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Concept to be used:
Conversion of galvanometer into voltmeter.
Let be the resistance of the galvanometer and the maximum deflection in the galvanometer.
To measure maximum voltage resistance is connected in series .
So,
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We have to find the value of we know that in series circuit current are same.
For For
⇒ equation (i) ⇒ equation (ii)
Equating both the above equations:
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⇒
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⇒ Plugging the values.
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⇒
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⇒
The coil resistance of the circuit is 820 Ω .