NTA Abhyas JEE Main2020PhysicsUnits and DimensionsPractice
The force F on a sphere of radius a , moving in a medium with velocity v , is given by F = 6 π η a v . The dimensions of η are
Options
- AML − 1 T − 1
- BMT − 1
- CMLT − 2
- DML − 3
Correct answer
A. ML − 1 T − 1
Step-by-step solution
η = F a v = [ MLT − 2 ] [ L ] [ LT − 1 ] = ML − 1 T − 1