Question

Define the following. State their symbol and give their SI units. (i) Amplitude (ii) Frequency (iii) Time period

Answer 1

1. Amplitude

The maximum displacement of a wave from its mean position is called Amplitude. It is denoted by the letter A. Its SI unit is Meter (m).

2. Frequency:

Number of cycles per unit time is called Frequency. It is denoted by the Greek alphabet (Nu) υ. Its SI unit is Hertz (Hz).

3. Time period:

Time taken to complete one cycle is called Time Period. It is denoted by T. Its SI unit is Second (s).