Related Questions

Ultrasonic waves are beyond the range of sound a human can hear.
দুটি সুসঙ্গত উৎস থেকে λ দৈর্ঘ্যের দুটি তরঙ্গ সমদশায় বের হয় । একটি বিন্দুতে যেখানে তরঙ্গ দুটি মিলিত হয় সেখানে তাদের দশা পার্থক্য 90° । তরঙ্গ দুটির অতিক্রান্ত পথ পার্থক্য তখন কত ? ( Two coherent sources emit waves of wavelength λ which are in phase. which are in phase. The two waves meet at a point where they have a phase difference of 90°. Which of the following could be the traversed path difference between the waves?)
Sound waves are ------ waves.
Which of the following statements is correct about sound waves and light waves?
Human beings hearing range is ________
The lower and upper cut off frequencies are also called ___________ frequencies
A band-stop filter passes frequencies between its lower and upper critical frequencies and rejects all others.
Frequencies above ___________ kHz are called radio frequencies
audible means
Which organ in the world audible associated with?