10. The definition of absorption is
a. The passage of light through an object
b. The energy that is transferred by a wave to the medium it travels
C. The bouncing of a wave off a surface
d. The overlap of waves that combine to make a new wave.

H tricky one let me think and get back to u

50? i have no !

Answerchemical;

Reaction involved in present system is :   c12h22o11 + h2o → 2 c6h12o6the reaction system is obeying following rate law:   rate = k[c12h22o11]thus, it is a first order reaction.now, for 1st order reactionrate constant (k) =  given: initial conc. = 3.0 g, final conc. = 2.7 g, t = 2.5 h∴rate constant (k) =  ∴ k = 0.04215 h-1now, for 1st order reaction, half life = 0.693/k = 0.693/0.04215 = 16.4 hthus correct answer is option b