Bats use ultrasound to measure how far they are from objects around them. As we have done in class, we suppose that the value of the wavelength gives an estimate of how small on object can be detected using a particular wave. (a) Let suppose we take for a bat emitted sound a frequency of f = 68 kHz, what is the value of the wavelength of the emitted sound? (Use speed of sound = 340 m/s) (b) The value of gives you an idea of the smallest object that the bat can detect. Does your number for makes sense compared to the size of insects that the bat rely on for food?