Exploring a periscope made with prisms

This is a periscope made by students with two right angled prisms in a course on Optics taught by Physics faculty, Rema Krishnaswamy. (These kind of setups are often used in optics research to manipulate or displace a beam of light. Also look up 'Dove prism') What phenomena/concepts is this setup based on? We wish… Continue reading Exploring a periscope made with prisms

Physics at home

glass with refraction pattern in darkness
This entry is part 2 of 7 in the series Workshop for Physics Teachers 2021

What is this session about Scientifically rigorous experiments at home How could we do quantitative school science experiments at home with commonly available material? Connect everyday phenomena to school Physics Can we recognise and appreciate Physics phenomena at home? Can we pedagogize these, i.e. connect them to formal Physics? What do we discuss in this… Continue reading Physics at home

Construction of a spectroscope

A spectroscope decomposes light. It works by taking light and splitting it into the wavelengths thatmake it up which is known as a spectrum. Its many uses are found in the fields of physics, chemistryand biology to determine the composition of different substances. Different elements make differentcolors when they glow. We can make objects and… Continue reading Construction of a spectroscope

Smartphone Spectroscopy

The reason we see color is because everything around us absorbs different wavelengths of light.The change in color of a colored solution with change in concentration is something that we can see. But it is difficult for us to identify the concentration just by looking at the color of a solution with our naked eyes… Continue reading Smartphone Spectroscopy