Prism Rainbow in Hyderabad Physics Lab

Sunlight pierces a darkened university research room in Hyderabad, striking a glass prism mounted on a metallic stand. The beam refracts into a narrow, distinct spectrum that stretches across heavy black curtains, creating sharp bands of red, orange, yellow, green, blue, and violet. Condensation beads form on the curved surface of a nearby glass beaker, catching the light. The midday sun illuminates the dust motes and the precise angles of the optical bench. Metal clamps hold the equipment steady against the stark darkness. A faint reflection of the red band glimmers on the wet glass rim of the beaker.