A Travelling microscope is used during the experiment to measure theA. focal length of a convex mirrorB. focal length of a convex lensC. refractive index of glass slabD. resistivity of a given
esel Traveling Microscope
Finding Refractive Index Using Travelling Microscope For Glass Slab
Vernier Travelling Microscope with 10x Magnification, Comes with Locking Wooden Storage Case - Walmart.com