In a northern latitude an experiment is performed on 3.50- 
sheet of roofing material which is placed in sunlight of intensity 
making normal incidence on its top surface.The ambient temperature surrounding the material on both top and bottom is 275 K.If the material acts as a perfect blackbody and sheds half of the incident radiation by thermal radiation,what equilibrium temperature does is reach?
Definitions:
Separation Of Chromosomes
A process during cell division where replicated chromosomes are separated into two new nuclei.
Mitosis
A type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
Replication Of DNA
The process by which a cell duplicates its DNA before it divides, ensuring each new cell receives a complete set of genetic instructions.
Cell Life Cycle
The series of stages through which a cell passes from one division to the next, including phases such as growth, DNA replication, and mitosis.
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