SPECIFICATIONS: • Optical bench is used in physics & this bench consists of a rectangular, wooden base with a 100-cm, wooden scale. • Five riders are fixed on the base. • With index marks on one side and provision for adjusting the vertical positions of the accessories. ACCESSORIES OF OPTICAL BENCH: • Candle Holder • Pin hole Screen • Graduated milky white plastic scree • Two lens / mirror holders • Plane mirror to replace screen • Mounted needle with safety ring Is avialable in