Science, asked by agarwalhoney734, 13 days ago

4. Sound waves of frequencies above 20,000 Hz are called.
. waves.
a. Ultrasonic
b. Supersonic
c. Infrasonic
d. Panasonic​

Answers

Answered by Kahan9902
0

Answer:

Here is your answer

Explanation:

a. ultrasonic sound

Answered by gamerstrike2020
0

ultrasonic

Explanation:

The units of frequency are called hertz (Hz). Humans with normal hearing can hear sounds between 20 Hz and 20,000 Hz. Frequencies above 20,000 Hz are known as ultrasound

Previous Question
Next Question
Similar questions
Physics, 6 days ago
if a conductor of length 1m is moved with velocity v across a magnetic field B at an angle of 30 °with B, then the motional emf will be (A) vBl (B) 1÷2vBl (C) 1÷2vB (D) 0.866vB​...
Math, 6 days ago
Cyclist A moves at a speed ot x km/h from a place in the eastern direction. Cyclist B moves at (x+3) km/h from the same place towards the northern direction. If after 2 hours the distance between them is 30 km, find the value of x.​
English, 6 days ago
It's a wrong idea that completing sentence...
Political Science, 13 days ago
Schelling’s concepts of ‘mixed — motive game’ richly embodies: (A) political and economic points of view (B) cultural and ideological points of view (C) psychological and sociological points of view (D) strategic and military points of view​...
Chemistry, 13 days ago
what is the role of earth worm in agriculture​...
World Languages, 7 months ago
The judgement vindicated that he was innocent in simple sentence...
Math, 7 months ago
Q13)Simplify the following: (a) 120÷[18 – {20 – 3(9-5)}]...
Math, 7 months ago
What is 1234 × 45 plzzzz tell...