Research: Synchronization of oscillators on a network

Birds can fly because they flap their wings in-phase at the same time. We can walk because our legs move out-of-phase at the same time. At a concert, people move to the rhythm, some left to right, some front to back, others in whichever way, but everyone is in "sync" with each other and the… Continue reading Research: Synchronization of oscillators on a network

Visualizing Polarization

Classically, light is an electromagnetic wave-- a wave of oscillating Electric and Magnetic fields instead of oscillating molecules of air or water like in sound or water waves. Electric and Magnetic fields are not something we can "see", but when they oscillate in synchrony, it results in a visual phenomenon called light! Light, a universal… Continue reading Visualizing Polarization

An informal introduction to spin and kets

Subatomic particles have an intrinsic property that is quite strange to us. Called spin, this property has the dimensions of angular momentum. It is a rather strange name because the word spin does not imply that the particle is spinning on its own axis. All we can know is that it's a type of angular… Continue reading An informal introduction to spin and kets

Kit Experiments in Electricity and Magnetism

This entry is part [part not set] of 5 in the series Home kit-based college physics experiments

The Course The electromagnetic force unifying electrical and magnetic forces, is one of the four fundamental forces. With gravitation, it is one of the two manifesting at a macroscopic level. A course on electricity and magnetism finds a place after an introduction to Newtonian mechanics. This course starts with techniques for computing electric and magnetic… Continue reading Kit Experiments in Electricity and Magnetism

Kit Experiments in Mechanics

This entry is part [part not set] of 5 in the series Home kit-based college physics experiments

The Course Mechanics being a first course in physics training, a balance of theory and hands-on activities gets the student ready to undertake a systematic study of other areas of physics. Accordingly they go hand-in-hand in our undergraduate first course taught at our University. On the theoretical side, a basic introduction to standard topics in… Continue reading Kit Experiments in Mechanics

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

Two simple experiments for a Thermal Physics classroom

close up shot of a thermometer
This entry is part [part not set] of 7 in the series Workshop for Physics Teachers 2021

What is this session about Make abstract concepts relatable How do we help students engage with concepts from Heat and Temperature that are often at an abstract level? History of Thermal Physics Understand how people in the 1700s measured specific heat capacities and latent heat accurately and also perform a related experiment on ice calorimetry.… Continue reading Two simple experiments for a Thermal Physics classroom

Making a Sundial/Fun with Shadows

vintage travel time watch
This entry is part [part not set] of 7 in the series Workshop for Physics Teachers 2021

What is this session about Phenomena around the Earth-Sun system Simple measurements/observations with a sundial can tell us a lot about interesting phenomena A common misconception What is the reason for the seasons? Big ideas Measuring the circumference of the Earth What do we discuss in this session? Starting with simple observations, one can build… Continue reading Making a Sundial/Fun with Shadows

An experiment on RC circuits for lockdown times

This entry is part [part not set] of 7 in the series Workshop for Physics Teachers 2021

What is this session about Combining a variety of tools It is now possible to combine a variety of easily available tools to do conventional lab experiments more effectively (even at home) Smartphones, free software and spreadsheets A combination of tools can enable students to record and analyse data accurately and conveniently Transferable skills Once… Continue reading An experiment on RC circuits for lockdown times