What are periodic signals?

The signal that repeats itself in time

The signals which change with time

The signals which change with frequency

The signals that repeat itself over a fixed frequency

What is a fundamental period?

The first interval of a periodic signal

Every interval of a periodic signal

Every interval of an aperiodic signal

The last interval of a periodic signal

It is same as the area in the previous interval

It is different in different situations

It is the square of the fundamental period

The dimensional formula of Time Period is given by,

[M⁰ L⁰ T¹]

Where,

Time Period (T) = 2× π × √(L/g) . . . . . (1)

Where, L = length of string and g = Acceleration due to gravity

The dimensional formula of length = [M⁰ L¹ T⁰] . . . . (2)

And, the dimensional formula of accleration due to gravity = [M⁰ L¹ T^-2] . . . . (3)

On substituting equation (2) and (3) in equation (1) we get,

Time Period (T) = 2× π × √(L/g)

Or, T = √[M⁰ L¹ T⁰] × [M⁰ L¹ T^-2]^-1 = √[T²] = [M⁰ L⁰ T¹].

Therefore, the time period is dimensionally represented as [M⁰ L⁰ T¹].

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