Water waves have a wavelength of 3.6cm and speed of...
Water waves have a wavelength of 3.6cm and speed of 18cms\(^{-1 }\) in deep water. If the waves enter shallow water with wavelength of 2.0cm, calculate the speed of the waves in the shallow water.
0.4cms\(^{-1}\)
2.5cms\(^{-1}\)
10.0cms\(^{-1}\)
10.8cms\(^{-1}\)
Correct answer is C
Velocity = frequency x wavelength
v = 18cm/s, wavelength = 3.6cm, then F = 5hertz
therefore, the speed of the wave in the shallow water = 5 x 2 = 10cm/s
NOTE; as a general rule, the frequency of a wave remains constant while speed and wavelength change as it travels from one medium to another.
Similar Questions
The motion of smoke particles from a chimney is typical of? ...
Which of the following radiations has the shortest wavelength? ...
A body of mass 100g moving with a velocity of 10ms-1 collides with a wall. If after collision i...
Iron at 30oC feels colder to the hand than wood at 28oC because...
Which of these expresses the relationship between the earth’s magnetic field FE, and the field...