1.7 A student measures the thickness of a human hair by looking at it through a…
PHYSICS · Subjective · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments
Problem
1.7 A student measures the thickness of a human hair by looking at it through a microscope of magnification 100 . He makes 20 observations and finds that the average width of the hair in the field of view of the microscope is 3.5 mm . What is the estimate on the thickness of hair ?