MCQ
By arc auxanometer, we measure the growth in
- ✓Elongation
- BThickness
- CBoth $ (a) $ and $(b)$
- DNone of the above
✓
Answer
Correct option: A.
Elongation
a
(a)In arc auxanometer actual growth in length of a plant is measured as actual growth
=$\frac{{{\rm{distance}}\,{\rm{travelled}}\,{\rm{by}}\,{\rm{pointer}}\, \times \,{\rm{radius}}\,{\rm{of}}\,{\rm{pulley}}}}{{{\rm{Length}}\,{\rm{of}}\,{\rm{pointer}}\,{\rm{from}}\,{\rm{centre}}\,{\rm{of}}\,{\rm{pulley}}}}$
(a)In arc auxanometer actual growth in length of a plant is measured as actual growth
=$\frac{{{\rm{distance}}\,{\rm{travelled}}\,{\rm{by}}\,{\rm{pointer}}\, \times \,{\rm{radius}}\,{\rm{of}}\,{\rm{pulley}}}}{{{\rm{Length}}\,{\rm{of}}\,{\rm{pointer}}\,{\rm{from}}\,{\rm{centre}}\,{\rm{of}}\,{\rm{pulley}}}}$
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