A sound wave travels through an aluminium block and passes into a pad of silicone rubber. The table gives the speed of sound in each material.
| Material | Speed of sound in m/s\text{m/s}m/s |
|---|---|
| aluminium | 6000 |
| silicone rubber | 1000 |
State how the wavelength of the sound wave in the silicone rubber compares with its wavelength in the aluminium.