Answer:
[tex] \fbox{ \sf{ \: Below \: in \: bold}}[/tex]
Explanation:
[tex] \star{ \: \: \underline{ \sf{Amplitude}}} : [/tex] The maximum displacement of a particle from its mean position in a wave is called amplitude of a wave. It occurs at crest and trough in a transverse wave and at compression and rarefaction in a longitudinal wave. It's SI unit is ' m '.
[tex] \star{ \underline{ \: \sf{ \: Time \: period}}} : [/tex] The time taken by a wave to travel complete one cycle of a complete wave is called time period. It's unit is second. For example : if a sound wave takes two seconds to complete one cycle , it's time period is two seconds.
[tex] \star{ \underline{ \sf{ \: \: Frequency}}} : [/tex] The number of complete waves , set up in a medium in one second is called frequency of the wave. The SI unit of frequency is hertz ( Hz ). For example , if a sound wave completes 15 compressions and 15 rarefactions in one second , it's frequency is 15 Hz. Kilohertz ( KHz ) and megahertz ( MHz ) are the higher units of frequency.
Hope I helped!
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~[tex] \sf{TheAnimeGirl}[/tex]
