Physics Journal of the Indonesian Physical Society
DIRECT-VISION SPECTROSCOPE USING WATER-PRISM
H. Kurniawan1, T. J. Lie1, M.O. Tjia2, Y.I. Lee3 and K. Kagawa4
1Graduate Programe for Optoelectronics, Faculty of Engineering, Indonesia University, Jl. Salemba Raya, Jakarta, Indonesia
2Department of Physics. Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology
3Department of Physics, Chonbuk National University, Jeonju, Chonbuk, Korea
1Department of Physics, Faculty of Education and Regional Studies, Fukui University, Japan
A liquid prism containing water as the medium is both theoretically and experimentally ``investigated. It is confirmed that the dispersion power of the prism with an apex angle``of 950 is about 5 times higher compared to that of the prism with 60o apex. Using the ``950 prism, a simple direct-vision spectroscope was constructed having a fairly high s``pectrum resolution. This model offers an extremely low price spectroscope of high ``quality suitable for physics education especially in less privileged countries.