) Rahul was studying at home in the evening. But due to improper power supply he could not study properly. a) Which phenomenon of light enables Rahul to see print in the book?
b) How was Rahul able to read the print on the book? Explain.
c) What is the role of light?

The probability that a student graduating from suburban state university has student loans to pay off after graduation is .60. if two students are randomly selected from this university, what is the probability that neither of them has student loans to pay off after graduation?