Examlex
A nearsighted person has a far point that is 4.2 m from his eyes.What focal length lenses must he use in his contact lenses to allow him to focus on very distant mountains?
Stereoisomeric Forms
Different forms of a compound that have the same structural formula but different arrangements of atoms in space.
Allylic Bromides
Organic compounds containing a bromine atom bonded to an allylic position, which is one carbon away from a double bond in a hydrocarbon chain.
2-Methylpent-1-Ene
An organic compound characterized by a six-carbon chain with a double bond starting from the first carbon and a methyl group on the second carbon.
NBS
N-Bromosuccinimide, a chemical reagent used in the bromination of alkenes, alcohols, and for the synthesis of various brominated compounds.
Q10: What is the angular separation of two
Q18: A sodium light, having wavelength 589.3 nm,
Q45: An organ pipe open at both
Q47: Consider two pipes of the same length:
Q62: Light having a frequency in vacuum of
Q85: A certain siren radiates sound uniformly in
Q86: For the graph shown in the figure,
Q97: A double slit that is illuminated with
Q109: A light ray in glass arrives at
Q112: A metallic sheet has a large number