Age of a tree may be ascertained by:
ARadius of its stem
BCircumference of its stem
CNumber of branches
DNumber of annual rings.
ARadius of its stem
BCircumference of its stem
CNumber of branches
DNumber of annual rings.
Related Questions:
A Student focuses a sharp image of sun using a spherical mirror on a sheet of paper, which starts to burn after some time. Which of the following statement/statements about the mirror is/are correct?
a) It is concave spherical mirror
b) It is positive focal length
c)It is a converging mirror