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Assertion : In the experiment of finding...

Assertion : In the experiment of finding speed of sound by resonance tube method, as the level of water is lowered, wavelength increases.
Reason : By lowering the water level number of loops increases.

A

If both Asseration and Reason are true an dthe Reason is correct explanation of the Asseration.

B

If both Asseration and Reason are true but Reason is not the correct explanation of Asseration.

C

If Asseration is true , but the Reason is false.

D

If Asseration is false but the Reason is true.

Text Solution

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The correct Answer is:
To solve the assertion and reason question regarding the resonance tube method for finding the speed of sound, we will analyze both statements step by step. ### Step 1: Understanding the Assertion The assertion states: "In the experiment of finding speed of sound by resonance tube method, as the level of water is lowered, wavelength increases." - **Analysis**: In the resonance tube method, the wavelength of the sound wave is determined by the frequency of the tuning fork and the speed of sound in the air column. Lowering the water level does not change the frequency of the tuning fork or the speed of sound in air. Therefore, the wavelength remains constant despite the change in water level. ### Step 2: Understanding the Reason The reason states: "By lowering the water level, the number of loops increases." - **Analysis**: In the resonance tube experiment, as the water level is lowered, the length of the air column increases. This allows for more standing waves (loops) to form within the tube. Thus, the number of loops indeed increases as the water level is lowered. ### Step 3: Conclusion Now, we can conclude the validity of both statements: - The assertion is **false** because the wavelength does not increase when the water level is lowered. - The reason is **true** because lowering the water level does increase the number of loops formed in the air column. ### Final Answer The correct conclusion is that the assertion is false, but the reason is true. Therefore, the correct option is that the assertion is false and the reason is true. ---
To solve the assertion and reason question regarding the resonance tube method for finding the speed of sound, we will analyze both statements step by step. ### Step 1: Understanding the Assertion The assertion states: "In the experiment of finding speed of sound by resonance tube method, as the level of water is lowered, wavelength increases." - **Analysis**: In the resonance tube method, the wavelength of the sound wave is determined by the frequency of the tuning fork and the speed of sound in the air column. Lowering the water level does not change the frequency of the tuning fork or the speed of sound in air. Therefore, the wavelength remains constant despite the change in water level. ### Step 2: Understanding the Reason ...
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