Optics laboratory manual

This Optics Laboratory Manual has been prepared to meet the requirements of the M.Sc. Physics curriculum, with a focus on developing both conceptual understanding and experimental skills in optics. The manual presents a carefully curated set of experiments covering key areas such as interference, diffraction, polarization, and spectroscopy. Each experiment has been structured in a systematic manner, including the aim, apparatus, theory, procedure, observations, calculations, result, precautions. This uniform format is intended to help students perform experiments with clarity, maintain accurate records, and develop scientific reasoning. Particular emphasis has been placed on the development of essential experimental skills, including measurement techniques, least count determination, and error analysis. These aspects are fundamental to all careful scientific investigation. The experiments included in this manual are designed not only to reinforce theoretical concepts, but also to provide meaningful hands-on experience with standard optical instruments such as spectrometers, lasers, and polarizers.