Both the Fresnel biprism experiment and Young's double-slit experiment are important demonstrations of the wave nature of light and have their own advantages and applications. It is difficult to definitively say that one is "better" than the other, as it depends on the specific context and the goals of the experiment.
The Young's double-slit experiment involves passing light through two narrow slits and observing the resulting interference pattern on a screen. This setup provides a clear demonstration of interference and is often used to study the properties of light waves, such as wavelength and intensity. It has been widely used to investigate the wave-particle duality of light and has contributed significantly to our understanding of quantum mechanics.
On the other hand, the Fresnel biprism experiment also demonstrates interference but in a different way. It involves placing a prism-like structure, called a biprism, in the path of a light beam. The biprism splits the beam into two parts that interfere with each other, creating an interference pattern. This setup has been used to measure the wavelength of light and study the phenomenon of diffraction. It can be advantageous in situations where a compact setup or precise wavelength measurements are required.
Ultimately, the choice between the Fresnel biprism experiment and Young's double-slit experiment depends on the specific goals and requirements of the experiment. Both experiments provide valuable insights into the wave nature of light and have contributed significantly to the field of optics.