Question

# When it is raining, the dew point isA. ${{0}^{\circ }}$ B. ${{60}^{\circ }}$ C. ${{100}^{\circ }}$ D. Room temperature

Hint: The dew point is the atmospheric temperature which is varying according to the humidity in the surrounding and pressure and below which water droplets start to become condense and dew can form. Or this is the temperature that air needs to be cooled in order to achieve a relative humidity of $100\%$.

Formula used:
To calculate the dew point temperature is:
${{T}_{d}}=T-\dfrac{100-RH}{5}$
Where ${{T}_{d}}$ - dew point temperature (in degree Celsius)
$T$ - Observed temperature (in degree Celsius)
$RH$ - Relative humidity (in percent)