Write the structure and name of the monomer of Natural rubber
Natural Rubber Monomer: The monomer of natural rubber is isoprene (( 2)-methyl-1,3-butadiene).
Explain the construction of a spherical wavefront by using Huygens' principle.
The slope of the tangent to the curve \( x = \sin\theta \) and \( y = \cos 2\theta \) at \( \theta = \frac{\pi}{6} \) is ___________.