To achieve a net reproduction rate of 1, the couple protection rate should be: (RRB Feb 2012) a. 50% b. 65% c. 55% d. 60%.

The net reproduction rate (NRR) is a measure of the average number of daughters that would be born to a woman over her lifetime, taking into account the current age-specific fertility rates. It indicates whether a population is growing or declining.

To achieve a net reproduction rate of 1, the couple protection rate refers to the percentage of couples who are effectively practicing contraception. Couples who use effective contraception can control the timing and number of children they have, which affects the population growth rate.

To determine the required couple protection rate, we need to consider the current age-specific fertility rates and the overall goal of maintaining a stable population. Since the question does not provide specific data, we can't calculate the exact couple protection rate required for an NRR of 1.

Understanding the net reproduction rate is important because it helps us analyze the population dynamics of a country. If the NRR is below 1, it indicates that the population is shrinking as the number of daughters being born is less than the number of reproductive-aged women. Conversely, if the NRR is above 1, the population is growing as each generation is producing more daughters than the preceding generation.

Determining the required couple protection rate is a complex task that involves considering various factors such as fertility rates, contraception methods, and the desired population growth or stability. Government policies, healthcare initiatives, and education programs play a crucial role in promoting contraception and family planning, which can impact the couple protection rate and ultimately the net reproduction rate.