The wave produced on the surface of water are of two types; capillary waves and gravity waves. Which of the following statement is incorrect about them?

Question

The wave produced on the surface of water are of two types; capillary waves and gravity waves. Which of the following statement is incorrect about them? (A) Capillary waves are ripples of fairly short wavelength (few centimeter). (B) Gravity waves have wavelength typically ranging from several meter to several hundered meters. (C) The restoring force in gravity waves is surface tension while in capillary waves is the pull of gravity. (D) The particle motion in water waves involves both motion up down and back forth.

Tardigrade Admin · Accepted Answer

Statement given in option (c) is incorrect and it can be corrected as, The restoring force that produces gravity waves is the pull of gravity, which tends to keep the water surface at its lowest level. These waves extends to the very bottom with diminishing amplitude. Rest statements are correct.

Q. The wave produced on the surface of water are of two types; capillary waves and gravity waves. Which of the following statement is incorrect about them?

Capillary waves are ripples of fairly short wavelength (few centimeter).

Gravity waves have wavelength typically ranging from several meter to several hundered meters.

The restoring force in gravity waves is surface tension while in capillary waves is the pull of gravity.

The particle motion in water waves involves both motion up \& down and back \& forth.

Statement given in option (c) is incorrect and it can be corrected as, The restoring force that produces gravity waves is the pull of gravity, which tends to keep the water surface at its lowest level. These waves extends to the very bottom with diminishing amplitude. Rest statements are correct.