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Today's quiz - β¨ . Sexual reproduction in flowering plant π±...8:00 pm.....
Chemistry - isomerism π.....
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Today's quiz - β¨ . Sexual reproduction in flowering plant π±...8:00 pm.....
Chemistry - isomerism π.....
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β Substances that absorb or emit light discontinuously in the form of small packets or bundles.
β The smallest packet of energy is called quantum (plural quanta).
β The radiation is propagated in the form of waves.
β The energy of a quantum is directly proportional to the frequency of the radiation
E β v
E = hv
E = (hc)/ Ξ» =hc v
Where E = Energy of radiation
h = Planck's constant
= 6.626 * 10^-27 * erg .sec
= 6.626 * 10^-34 Joule.sec
β A body that can absorb or emit energy in whole number multiple of quantum.
E = nhv
Where n = 1, 2, 3, 4
β The frequency of emitted radiation goes from lower to higher as the temperature increases.
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Figure = Porella ( liverwort.)
NCERT line =
Some Liverworts have leafy forms which forms leaf like structure in two rows on stem like structure.
PW Biology 36 Years Chapterwise NEET Class XI.pdf50.82 MB
PW 36 years Chapterwise NEET Class 11 th and 12 thπππ
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