differentiate between wavelength and frequency? write three uses of multiple reflection
Answers
Answer:
Reflection, Refraction, and Diffraction
Interference and Beats .
Answer:
*Frequency:
Frequency is the number of occurrences of a repeating event per unit of time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency. Frequency is measured in units of hertz which is equal to one occurrence of a repeating event per second.
SI unit: Hertz.
*Wavelength:
Wavelength can be defined as the distance between two successive crests or troughs of a wave. Wavelength is inversely proportional to frequency. This means the longer the wavelength, lower the frequency. In the same manner, shorter the wavelength, higher will be the frequency.
SI unit : Metre.
The uses of multiple reflection of sound is :
In measuring the depth of sea /ocean. For the detection of the positions of any objects such as shipwrecks, sea rocks, hidden ice berg in the sea and ocean. Investigating any problem inside the human body.