Study the following graph carefully and answer the questions that follow :
Aspect | Stage I (High Fluctuating) | Stage III (Low Fluctuating) |
---|---|---|
Characteristics | High birth rates and high death rates, resulting in low population growth. | Low birth rates and low death rates, resulting in very low population growth or decline. |
Causes | Poor healthcare, high infant mortality, limited food/resources, frequent epidemics. | Advanced healthcare, contraception use, higher education, economic development. |
Examples | Rainforest tribes, remote communities. | Developed countries like Canada, Japan, USA. |
Birth Rate | High | Low |
Death Rate | High | Low |
Population Growth | Low | Very low or stable |
Socio-economic Conditions | Primitive or underdeveloped | Highly developed |
Two batteries of emf's \(3V \& 6V\) and internal resistances 0.2 Ω \(\&\) 0.4 Ω are connected in parallel. This combination is connected to a 4 Ω resistor. Find:
(i) the equivalent emf of the combination
(ii) the equivalent internal resistance of the combination
(iii) the current drawn from the combination
Four students of class XII are given a problem to solve independently. Their respective chances of solving the problem are: \[ \frac{1}{2},\quad \frac{1}{3},\quad \frac{2}{3},\quad \frac{1}{5} \] Find the probability that at most one of them will solve the problem.