grating spectroscope वाक्य
"grating spectroscope" हिंदी में grating spectroscope in a sentenceउदाहरण वाक्य
- In 1877 he moved to Rusthall House, Tunbridge Wells, fitted his polar heliostat to the roof of his house, and with a grating spectroscope and electrical equipment began his studies of the solar and metallic spectra.