The Vernier Caliper is a precision measuring instrument used in Physics lab practicals to measure length accurately up to 0.01 mm.
Formula: LC = 1 MSD − 1 VSD.
Standard LC: 0.1 mm (for 10-division vernier).
Total Reading: MSR + (VSD × LC).
Least Count (LC) = 1 MSD − 1 VSD
Where:
Standard Value: For a typical Vernier caliper:
For a more precise caliper (50 divisions):
Most commonly asked in exams: LC = 0.01 mm = 0.1 cm
Total Reading = Main Scale Reading + (Vernier Scale Division × Least Count)
Example: MSR = 2.3 cm, VSD coinciding = 4, LC = 0.01 cm → Reading = 2.3 + (4 × 0.01) = 2.34 cm
Least Count = 1 MSD − 1 VSD. For a standard Vernier caliper with 10 divisions, the least count is 0.1 mm (0.01 cm).
What is the Real Colour of the Sun?
Discover the true colour of the Sun. Learn why the sun looks yellow or red from Earth, but is actually pure white when seen from space.
What Color Does Red and Blue Make?
Learn what happens when you mix red and blue colours. Understand the difference between mixing paint (pigments) and mixing light in physics.
Define Reflection of Light and Its Laws
Learn the definition of reflection of light. Understand the two laws of reflection (angle of incidence = angle of reflection) with examples.
What is the Refractive Index of Air and Water?
Find the exact values of the Refractive Index of Air, Vacuum, Water, and Diamond. Understand what refractive index means in Class 10 Light chapter.
What is the Refractive Index of Water?
Learn the exact refractive index of water (1.33) and why it matters. Understand Snell's Law and how water bends light to make objects appear displaced.
Turn this guide into revision flashcards, a practice exam, or an AI-generated podcast — free, no signup required.