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The dimensional formula of pressure is

1. [ML⁻¹T⁻²]
2. [ML⁻¹T²]
3. [ML⁻¹T⁻²]
4. [MLT⁻²]

Correct answer: [ML⁻¹T⁻²]

Solution

Pressure is defined as force per unit area. The dimensional formula of force is [MLT⁻²], and area is [L²]. Dividing these gives [ML⁻¹T⁻²].

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