Which of the following is a true statement? a) 390 nm blue light is higher in energy than 610 nm yellow light. b) visible light is higher in energy than ultraviolet light. c) light at a frequency of 1014/s is lower in energy than light at a frequency of 1010/s. d) all of these are true.

a.   mass number from atomic number

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.