Nitrogen
Oxygen
Conductivity
Alkalinity
The pure crystalline form of silica used in scientific apparatus for passing ultraviolet light is called-
The purest form of water can be obtained from
The quality of the musical note depends upon
The radiation initially produced in fluorescent tube is
The radiation that can penetrate deepest in our body
The Rain Shadow Effect is associated with
The rate of cooling depends upon which factor?
The ratio of pure gold in 18 carat gold is -
The ratio of Re flexion and Distortion in called-
The ratio of the mean value over half cycle of the r.m.s. value of an AC of :
