Option 1: Satyendra Nath Bose -> Known for quantum mechanics and Bose-Einstein statistics, not radio wave experiments.
Option 2: Jagadish Chandra Bose -> Pioneered research on millimeter waves and their quasi-optical properties in the 1890s, developing improved coherers including the iron-mercury-iron coherer.
Option 3: C.V. Raman -> Famous for discovering the Raman Effect related to light scattering, not radio wave technology.
Option 4: Subrahmanyan Chandrasekhar -> Astrophysicist known for stellar structure and black hole theory, not radio wave experiments.
Hence, Jagadish Chandra Bose -> He conducted groundbreaking experiments on very short radio waves (millimeter waves) demonstrating their quasi-optical properties like reflection, refraction, and polarization. His work led him to develop significant improvements to the coherer, an early radio signal detector, making important contributions to wireless communication technology in the late 19th century. -> correct