Question

in longitudinal waves, the particles of the medium oscillate about their central or mean positions,in a direction parallel to the propagation of the wave.
state true or false​

Answer 1

Explanation:

Enter first number: 15

Enter second number:20

Press 1. For SUM

Press 2. For PRODUCT

Press 3. For DIFFERENCE

Press 4. For QUOTIENT

Enter your choice (1-4): 2

The Product=300

Answer 2

the answer of the question is: true

I think it is the right answer