Q. At temperature T Kelvin (K), the value of the Fermi function at an energy 0.5 eV above the Fermi energy is 0.01. Then T, to the nearest integer, is___________(𝑘B = 8.62 × 10−5 eV/K) Ans: 1262 Sol:
The difference between spermiogenesis and spermiation is Option 1 : Inspermiogenesisspermatozoa are formed, while in spermiation spermatozoa are released from sertoli cells into the cavity of seminiferous tubules.Option 2 : In spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed.Option 3 : In spermiogenesis spermatozoa from sertoli cells are released into the cavity of
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Q. The Hamiltonian for a quantum harmonic oscillator of mass 𝑚 in three dimensions is where 𝜔 is the angular frequency. The expectation value of 𝑟2 in the first excited state of the oscillator in units of (rounded off to one decimal place) is Ans: 2.5 Sol:
The Hamiltonian for a quantum harmonic oscillator of mass 𝑚 in three dimensions is Read More »
The amnion of mammalian embryo is derived from Option 1 : Ectoderm and mesodermOption 2 : Endoderm and mesodermOption 3 : Mesoderm and trophoblastOption 4 : Ectoderm and endoderm
The contraceptive ‘SAHELI’ Option 1 : Is an IUDOption 2 : Blocks estrogen receptors in the uterus, preventing eggs from getting implanted.Option 3 : Increases the concentration of estrogen and prevents ovulation in females.Option 4 : Is a post-coital contraceptive.
Hormones secreted by the placenta to maintain pregnancy are Option 1 : hCG, hPL, progestogens, estrogensOption 2 : hCG, hPL, progestogens, prolactinOption 3 : hCG, hPL, estrogens, relaxin, oxytocinOption 4 : hCG,progestogens, estrogens, glucocorticoids
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Q. The electric field of an electromagnetic wave in vacuum is given by The wave is reflected from the 𝑧 = 0 surface. If the pressure exerted on the surface is 𝛼𝜖0𝐸20, the value of 𝛼 (rounded off to one decimal place) is Ans: 0.8 Sol:
The electric field of an electromagnetic wave in vacuum is given by Read More »
Which part of poppy plant is used to obtain the drug “Smack”? Option 1 : FlowersOption 2 : RootsOption 3 : LatexOption 4 : Leaves
Which part of poppy plant is used to obtain the drug “Smack”? Read More »
In a growing population of a country, Option 1 : Reproductive individuals are less than the post-reproductive individuals.Option 2 : Pre-reproductive individuals are more than the reproductive individuals.Option 3 : Reproductive and pre-reproductive individuals are equal in number.Option 4 : Pre-reproductive individuals are less than the reproductive individuals.
All of the following are included in ‘Ex-situ conservation’ except Option 1 : Wildlife safari parksOption 2 : Botanical gardensOption 3 : Sacred grovesOption 4 : Seed banks
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