Group 'A
(1) Time period
of oscillation
(2) Frequency
(3) Sound level
(4) Amplitude
Group 'B
(a) Centimetre (cm)
(b) Decibel
(c) Second
(d) Measured in Hz
Answers
Explanation:
Time period of oscillation
Period, T is defined as the time of one full oscillation. In this applet, the small hanging mass always swings from its rightmost position This can be used as a reference point or state for counting the number of oscillations. The time elapsed between every two consecutive states is the period, T.
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 hertz (Hz) which is equal to one event per second.
sound level
Sound level refers to various logarithmic measurements of audible vibrations and may refer to: Sound exposure level, measure of the sound exposure of a sound relative to a reference value. Sound power level, measure of the rate at which sound energy is emitted, reflected, transmitted or received, per unit time.
amplitude
Amplitude, in physics, the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position. It is equal to one-half the length of the vibration path.