2. A student is calculating the thickness of a single sheet of paper. She measures the thickness of a stack of 80 sheets with vernier calipers, and finds the thickness to be L=1.27 cm. Which of the following answers has the correct number of significant digits? nmm):(12780=0.015875) A)0.15875B)0.159c0.16D)02 Correct answer is B)2. A student is calculating the thickness of a single sheet of paper. She measures the thickness of a stack of 80 sheets with vernier calipers, and finds the thickness to be L= 1.27 cm. Which of the following answers has the correct number of significant digits? (in mm): A) 0.15875 B) 0.159 C) 0.16 D) 0.2 Correct answer is B). (1.27/80 = 0.015875)