the Laplace correction in the expression for velocity of sound given by Newton is needed because sound waves
(a) are logitudenal
(b) propagate isothermally
(c) propagate adiabatically
(d) are of long wavelength
Answers
Answer: C is correct.
because according to Laplace's correction, propagation of sound takes place under adiabatic conditions. during the production of compressions and rarefactions , the temperature of surrounding air doesn't remain constant.
Explanation:
Answer:
Option C) propagate adiabatically.
Explanation:
According to Newton, "when sound waves propagate in air, compression and rarefaction are formed". Newtons assumption was also that this was a very slow process and also heat which was produced was transmitted to the surrounding. While Laplace corrected him in that those processes of compression and rarefaction occurs, but they are fast without the production of any heat.
Thus, it is concluded that the process is propagated adiabatically.