# NTNUJAVA Virtual Physics LaboratoryEnjoy the fun of physics with simulations! Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/

## Information about this web site => Question related to Physics or physics related simulation => Topic started by: leeyiren on January 10, 2010, 05:13:23 am

 Title: Question regarding waves. Post by: leeyiren on January 10, 2010, 05:13:23 am When water wave flows from shallow water into deep water, how do the frequency, wavelength and speed change?  ??? ??? Pls include explanation. Thanks. Title: Re: Question regarding waves. Post by: Fu-Kwun Hwang on January 11, 2010, 01:59:17 pm The frequency of the same wave is always the same. However, the speed of wave travel in different material is different. The refraction index of light in a material is defined as speed of light $c$ divide by light speed in that material $v$, i.e. $n=\frac{c}{v}$ Title: Re: Question regarding waves. Post by: leeyiren on January 11, 2010, 06:12:44 pm how do they change? increase or decrease? pls be more clear. thx Title: Re: Question regarding waves. Post by: Fu-Kwun Hwang on January 11, 2010, 08:20:10 pm Are you talking about wave move on the water surface or wave traveling under the water surface (in the depth water)?