What is the dimension of frequency?
Correct Answer: [M^0L^0T^-1]
- Step 1: Understand what frequency means. Frequency is how often something happens in a certain amount of time.
- Step 2: Identify the unit of frequency. The unit of frequency is Hertz (Hz), which means cycles per second.
- Step 3: Break down the definition of frequency. Frequency = Number of cycles / Time.
- Step 4: Recognize that 'Number of cycles' is a count and has no dimension (it's dimensionless). So, its dimension is [M^0L^0T^0].
- Step 5: The 'Time' in the denominator has a dimension. Time has the dimension [T^1].
- Step 6: Combine the dimensions. Since frequency is cycles divided by time, we write it as [M^0L^0T^0] / [T^1].
- Step 7: Simplify the dimensions. This gives us [M^0L^0T^-1].
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