Q. The wood with lower density is …A… and that of higher density is …B… Choose the correct combination of options for A and B
A) A-autumn wood; B-spring wood
B) A-spring wood; B-autumn wood
C) A-autumn wood; B-blate wood
D) A-spring wood; B-early wood
Explanation
A–spring wood, B–autumn wood. The spring wood is lighter in colour and has a lower density whereas the autumn wood is darker and has higher density. The two kinds of woods that appear as alternate concentric rings, constitutes an annual ring. Annual rings seen in a cutted stem give an estimate of the age of the tree
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.