Physics
Physics Practical Exam and Viva Tips for Class 12
By Dr. Sandhya Classes Editorial Team · Published 2026-10-03 · Updated 2026-10-03 · 3 min read
How to prepare for CBSE Physics practicals, record files and viva questions.
Physics at Dr. Sandhya Classes is taught personally by Dr. Sandhya, Ph.D. in Physics, teaching since 2015 — offline in Zirakpur (Highland Marg & Lohgarh Road) and online across India. About Dr. Sandhya
Understand the aim
Know why each experiment is done and which principle it tests.
Record observations honestly
Neat tables with units and correct significant figures matter.
Know sources of error
Viva questions often ask about errors and precautions.
Connect to theory
Link experiments like the meter bridge or concave mirror to the chapter concepts.
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