journal of science education

Back Issues

In this section of Resonance, we invite readers to pose questions likely to be raised in a classroom situation. We may suggest strategies for dealing with them, or invite responses, or both. "Classroom" is equally a forum for raising broader issues and sharing personal experiences and viewpoints on matters related to teaching and learning science.

A W Joshi, Umapati Pattar and F I Surve

We use a steel scale and a broken piece of a long-playing record as plane reflection gratings. These are placed at grazing incidence with the incident laser beam. A beautiful diffraction pattern is seen on the opposite wall. This article describes the necessary theory, measurements and results.

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