Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Solved Assignments
Asked Questions
Answered Questions
hormones secreted by gonads1 testis and ovary are called gonads in the human body2 apart from producing gametes gonads also secrete hormonestestis
importance of pituitary glandpitutary gland is very small and it is about the size of a large pea seedit is very important as it controls the
endocrine glandsendocrine glands have no ducts - so these are also called as ductless glands egpituitary etcthese glands secrete chemical
gibberellins in plant growth gibberellins were first isolated from the culture of a fungus gibberella fujikuorigibberellins has a significant
auxinsauxins are plant growth substances the term auxin usually refers to a chemical compound called indole acetic acid iaa which is the major
growth and development of multi cellular organismsthe normal growth and development in all multicellular organisms occur in a programmed mannerthe
refining of petroleumpetroleum crude extracted from earths crust is an intimate mixture of many organic compounds crude petroleum needs to be
manufacture of cementcement is a composite mixture of calcium silicates amp calcium aluminates which is a popular material used for construction1
factors that effect the solubility of a solute the solubility of a solute is effected by three factors like1 nature of solute2 nature of solvent3
population inversionthe process in which the number of electrons n2 in a higher energy state called lsquometastable state of an active medium is
phenomenon of interference of water waves1 arrange two identical adjacent pins s1 and s2 vibrating in a ripple tank with the same frequency2 in
ripple tankthe concept of reflection and refraction of light waves can be understood by the study of reflection and refraction of waves on water
huygens wave theoryhuygens wave theory is not correct in all respects2 it assumes simply that light energy is propagated as a wave3 at the time of
concept of wave front the basis of huygens wave theory of light is his principle concerning construction of wave frontwhen a disturbance from
microprocessor a combination of ics cal led a microprocessor the data is processed in the microprocessor according to the instructions given
detection receiver the antenna receiver these modulated waves from different transmitting stationschannel selector selects the desired signals the
the amplified video signals are amplitude modulated using a suitable rf carrier wave in a transmitter called lsquoam picture transmitter similarly
production of audio and video signalsiconoscope is a type of camera consisting of a cathode ray beam and a photoelectric cell the picture is
majority and minority charge carriers a pure semiconductor has equal number of holes and electrons but an extrinsic semiconductor has majority
electrons and holes in semi-counductormetals have free electrons available in conduction band for conduction of electric current as the valence
historical development of atomic modelsin olden days there was an idea that all matter is made of tiny indivisible particleswhen thomson discovered
the decrease of mass is related to the binding of the individual particles together inside the nucleustherefore every stable nucleus has a mass
rutherfordrsquos atomic model failurerutherford proposed that the electrons circulate around the nucleushowever according to electromagnetic theory
for what value of kthe following system of equations have infinite solutionskx 5y -k-5020x ky -
natural and forced vibrationswhen we strike a tuning fork with a rubber hammer it vibrates with certain frequencythe frequency does not change even