11. The modern theory that explains the nature of light includes the notion of wave particle duality. 12. The observation and study of aurora borealis offer many clues as to the nature of light . 13. Shortly afterwards, the electromagnetic nature of light was demonstrated by the experiments of Heinrich Hertz in Germany. 14. For an artist working in the 15th century, some study of the nature of light was essential. 15. This is because of the wave nature of light , and that red is longer wavelength than blue. 16. These interference results involving a small number of photons are significant for appreciating the quantum nature of light . 17. It has had far-reaching consequences, one of which was the understanding of the nature of light . 18. Feynman also pays homage to Isaac Newton's struggles to come to terms with the nature of light . 19. The photoelectric effect helped to propel the then-emerging concept of wave particle duality in the nature of light . 20. Raman and Suri Bhagavantam discovered the quantum photon spin in 1932, which further confirmed the quantum nature of light .
