Reason (R) : Evening air contains moisture which absorbs the heat and allows the light.
Select the most appropriate option :
The assertion states that the warmth of the sun's rays is advantageous during evening time. This is generally considered true, as the sun's residual warmth can provide comfort as temperatures cool down after sunset, making the evening pleasant.
The reason suggests that evening air contains moisture, which absorbs heat and allows light. Evening air often has higher relative humidity and can contain moisture (like water vapor or dew), which does interact with heat (absorbing and re-radiating it) and light. Moisture in the atmosphere can contribute to trapping heat, similar to a mild greenhouse effect, potentially enhancing the perceived warmth.
Both the assertion and the reason are factually plausible. The presence of atmospheric moisture in the evening can influence temperature regulation and the perception of warmth from the sun's rays. Therefore, the reason provides a possible explanation for why the evening sun's warmth might be considered advantageous.
Based on the analysis:
Therefore, the most appropriate option is that both (A) and (R) are correct.
Absolute humidity in atmosphere at $ 10^\circ $ is $5.0$ g/m$^3$ and maximum amount of water air can hold at same temperature is $ 10$ g m$^3$. What will be the relative humidity at the same temperature?