Simple Explanation
Density ratio \(\frac{P_1/A_1}{P_2/A_2}\) से निकलेगा। यहां \(\frac{7/14}{5/15}=\frac{1/2}{1/3}=\frac{3}{2}\)। इसलिए density ratio 3:2 है और दूसरा विकल्प सही है। Population ratio 7:5 को सीधे density ratio मानना गलत होगा क्योंकि area ratio भी density को प्रभावित करता है। परीक्षा में density ratio के लिए population ratio को area ratio से divide करना चाहिए। / Density ratio is obtained from \(\frac{P_1/A_1}{P_2/A_2}\). Here \(\frac{7/14}{5/15}=\frac{1/2}{1/3}=\frac{3}{2}\). Therefore, the density ratio is 3:2 and the second option is correct. Using the population ratio 7:5 directly as the density ratio would be wrong because area differences also affect density. In examinations, divide the population ratio by the area ratio to obtain the density ratio.
