Fluorescent lamp of 25W gives more light than the filament lamp of 50W. Why?​

terd muffin is the correct answer

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.

do you have a formula possibly

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.