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Level 0 Solutions: Units and Measurements
Student Name: ____________________________________
Class: 11th (Physics)
Subject: Physics
Level 0 Solutions
1.
List the 7 fundamental SI units.
Sol:
Meter (m), Kilogram (kg), Second (s), Ampere (A), Kelvin (K), Mole (mol), Candela (cd).
2.
What is the dimension of Force and Energy?
Sol:
Force: $[MLT^{-2}]$, Energy: $[ML^2T^{-2}]$.
3.
Define parallax and parallax angle.
Sol:
Parallax is the apparent shift in position of an object when viewed from two different positions (baselines).
4.
What is the least count of a standard Vernier Calliper?
Sol:
Least Count = $1 \text{ MSD} - 1 \text{ VSD} = 0.1 \text{ mm} = 0.01 \text{ cm}$.
