Advertisements
Advertisements
Question
What is a bulb horn ? Name the principle on which a bulb horn works.
Solution
A bullhorn is a cone-shaped wind instrument that is used for signaling in bicycles, cars, buses, trucks, boats, etc. A bullhorn works on the principle of multiple reflections of sound.
APPEARS IN
RELATED QUESTIONS
Name two sound absorbing materials (or objects) which can make our big room less echoey.
Explain how the principle of echo is used by
The dolphin to locate small fish as its prey
What are mechanical waves?
Write the approximate value of the speed of sound in water.
A type of electromagnetic wave has a wavelength of 50 Å. Name the wave and state one use of this type of wave.
When a sound is made from a distance of 18 m, in front of a tall building, it is found to get repeated again. Which phenomenon is associated with this observation? Give a brief explanation of this phenomenon?
In what respect does waveforms of noise and a musical note differ. Draw diagrams to illustrate your answer.
Explain Reflection at curved surfaces.
