Please select the correct option for the assertion-reason statement. Assertion: The ceiling conference halls are made curved. Reason: Curved ceilings help the sound to spread evenly in the hall.
Assertion Analysis
The statement "The ceiling conference halls are made curved" is examined.
- Conference halls and auditoriums often feature curved ceilings. This design choice is common in architectural acoustics to optimize sound reflection and distribution.
- Therefore, the assertion is true.
Reason Analysis
The statement "Curved ceilings help the sound to spread evenly in the hall" is examined.
- Curved surfaces are known to reflect sound waves. When strategically shaped, they can direct sound energy towards different parts of the audience area, promoting uniform sound distribution and reducing echo or dead spots.
- This principle is fundamental in acoustic engineering for large spaces like conference halls.
- Therefore, the reason is true.
Explanation Check
The relationship between the assertion and reason is evaluated.
- The reason explains the purpose behind the design mentioned in the assertion. Curved ceilings are indeed used specifically because they facilitate even sound distribution.
- Thus, the reason provides a correct explanation for the assertion.
Conclusion
Both the assertion and the reason are factually correct, and the reason accurately explains the assertion.
The correct option is: Both assertion and reason are true and reason is the correct explanation of assertion.
Important Questions from The Speed of Sound
An object is 10.64 km below the sea level. A research team sends down a sonar signal to confirm this depth. After how long can it expect to get the echo? Take speed of sound in sea water = 1520 m/s.
A boy stands 83 m in front of a high wall and then blows a whistle, calculate the time interval when he hears an echo. Speed of sound is 332 m/s.
A man claps his hands in front of a wall and he hears an echo after 1.6s. He walks. 33m towards wall and hears the echo 1.4 s after clapping. Then velocity of sound in air is:
For hearing a distinct sound, the time interval between the original sound and the reflected one must be atleast ______ seconds.
- An echo is heard after 0.6 s when a boy fires a cracker, 99 m away from a tall building then the speed of sound is
