1.

A microscope is focussed on a mark on a sheet of paper. When a glass slab of 3 cm thicknessis placed over the mark, the microscope had to be raised by 1 cm to bring the mark into focusmark into focusagain. What is the refractive index of the glass?lAns. 1.5]lul hauing 22 cm side. When viewed from

Answer»


Discussion

No Comment Found