when Ca(OH)2 is added to gas jar in which methane is burned ,the solution turns milky. why?write the equation for the reaction.

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Ineed to find the answer of this question because i dont understand it

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.