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CBSE Class 11-science Answered

Why is sound heard in co2 more intense than the sound heard in air?
Asked by Avijit Gupta | 18 Feb, 2012, 10:31: PM
answered-by-expert Expert Answer
The intensity of sound wave is directly proportional to the density of the medium. Since the density of CO2 is more than that of air, the same sound is heard more intensely in CO2.
Answered by | 18 Feb, 2012, 10:39: PM

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CBSE 11-science - Physics
The second overtone of a pipe closed at one end has the same frequency as the third overtone of a pipe open at both ends. Compare the length of the pipes
Asked by emad.amd | 21 Mar, 2024, 12:00: PM
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CBSE 11-science - Physics
Help
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Asked by sherry.sharma771 | 08 Feb, 2023, 08:25: AM
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CBSE 11-science - Physics
Please refer to the uploaded image for the doubt. [In the image, length of the open pipe=0..6m] // *SORRY FOR BAD QUALITY* //
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Asked by arjunsah797 | 17 May, 2022, 01:19: PM
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CBSE 11-science - Physics
how to prove that the frequencies produced in the string are in the ratio 1:2:3
Asked by lakshmiks703 | 17 Apr, 2022, 07:23: PM
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CBSE 11-science - Physics
The frequency is directly proportional to length multiplied by tension and mass in the length of string .derive the formula of frequency
Asked by Umeshlochab80 | 12 May, 2021, 09:24: PM
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CBSE 11-science - Physics
The velocity of the wave in of sound depends on bulk modulus and density of the medium derive the formula of velocity
Asked by umeshlochab887 | 12 May, 2021, 06:17: PM
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CBSE 11-science - Physics
show that in the case of closed organ pipe, the ratio of the frequencies of the harmonics is 1:3:5:7.​
Asked by ks076345 | 22 Mar, 2021, 09:20: AM
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CBSE 11-science - Physics
A photograph of a house occupied an area of 1.75 sq.cm on a 35mm slide.The slide is projected on to a screen and the area of the house on the screen is 1.55 sq.m.What is the linear magnification of the projector-screen system?
Asked by pb_ckt | 22 May, 2019, 10:19: AM
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CBSE 11-science - Physics
Pls solve.
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Asked by pb_ckt | 21 May, 2019, 02:59: PM
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CBSE 11-science - Physics
The diameter of an iron wire is 1.20mm. If the speed of the transverse wave in the wire be 50.0m/s , what is the tension in the wire ? The density of iron os 7.7 × 10 raise to 3 k/ m cube
Asked by drbharatkaila | 13 Feb, 2019, 07:38: PM
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