NeetGeometrical OpticsRE-NEET 2026MCQ+4 / -12026Which of the following measurements require 'index correction'?AMeasurement of speed of sound using resonance tubeBMeasurement of resistance of a wire using meter bridgeCMeasurement of gravitational acceleration using simple pendulumDMeasurement of focal length of lenses using optical benchCheck AnswerClear SelectionReveal AnswerShow Explanation
