During total internal reflection when the ray in the denser medium reaches to the critical angle, the angle in the rare medium will be:
a) 600
b) 900
c) 1200
d) 1800
Most of the refraction is done at the front surface of the ___ at its interface with air:
a) Iris
b) cornea
c) Lens
d) All of them
An example of flowers pollination by water is:
a) Grass species
b) Conifers
c) Hydrilla plant
d) Chestnuts
The type of linkage present between nucleotides is:
a) Glycosidic
b) Puriness
c) Peptide
d) Phosphodiester
The locus of all the points having same phase in a medium is known as:
a) Coherent phase
b) Interference
c) Wave
d) Wave front
Each surface of a lens is a part of a sphere, the center of which is called as:
a) Optical Center
b) Center of Curvature
c) Focal point
d) Principal focus
