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JAMB Physics 2024 Paper

Question : 15

Total: 125

Solution:

Concept:

Relative humidity compares the saturated vapour pressure at the dew point with the saturated vapour pressure at the air temperature.

Explanation:

Relative humidity is given by:

R.H = \frac{\text{S.V.P at dew point}}{\text{S.V.P at air temperature}} \times 100\%

S.V.P at dew point

= 7.3\,\text{mmHg}

S.V.P at air temperature

= 13.5\,\text{mmHg}

Substitute the values:

R.H = \frac{7.3}{13.5} \times 100\%

R.H = 0.5407 \times 100\%

R.H \approx 54\%

Answer:

Option C:

54\%

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