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49601.	How does electric motor work?
Answer» "Gaurav" sanket Electric motor works by using current

49602.	Know me on Facebook Raajz Mohit
Answer» Hm..insta.. ?

49603.	Short note on electric generator.
Answer» Electric generator generates something whatever i do not know An electric generator is a device which converts mechanical energy into electrical energy.It works on the principle of ELECTROMAGNETIC INDUCTION.

49604.	Butanone formula and structure
Answer» Thank u Sorry....Formula of butanone is C4H8O. Formula of butane is C4H10...and to draw structure isn\'t possible here...

49605.	What is artificial salection
Answer» The process by which man selects a particular desired traits for breeding, in order to generate new plants and animals with improved character. Selective breeding is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.

49606.	What is radioactive substances??
Answer» Radioactive substances are atoms that decay naturally. They can give off alpha particles, beta particles and gamma radiation. A common source of alpha particles in the welding environment is thoriated tungsten, used in many TIG welding electrodes.

49607.	What is the definition of redistribute
Answer»

49608.	What is triple fusions in plant
Answer» Triple fusion is a fusion that involves a sperm nucleus and two polar nuclei which occurs in the double fertilization in a seed-bearing plant that results in the endosperm formation.

49609.	Phfdnhbi
Answer» PJhakalzsj

49610.	What is the proper defiation of mitochibdrion
Answer» Mitochondria are membrane-bound organelles present in the cytoplasm of all eukaryotic cells, that produces adinosine triphosphate (ATP), the main energy molecule used by the cell.

49611.	Foramtion of soap
Answer» Formation of soap (saponification) is the reaction of ester (ethyl ethanoate) with sodium hydroxide to form carboxylic acid with alcholThe complete explanation can be found in your NCERT

49612.	What happen wben egg is not fertilized?
Answer» Ovulation occurs once in every month in a human female.The uterus starts preparing itself to receive the fertilized egg. It becomes thick, muscular and rich in blood and tissues.If the egg is not fertilized then the thick lining of uterus breaks down . The blood, tissues along with the non fertilized egg comes out as menstruation through ******.\xa0

49613.	So unit of resistance
Answer» Ohm Ohm The unit of resistance is Ohm..named after the scientist Jorge Simon Ohm Its ohm Ohm Ohm metre Ohm

49614.	Explain versatile nature of carbon.
Answer» Catenation and tetravalency carbon never gain or lose electron because if carbon lose electron than some energy is needed when electron become less than proton attract electron with more force than energy is noat able to remove electron in carbon atom if carbon atom try to gain electron than proton is not able to hold more electron

49615.	Which current we can store AC / DC ?????
Answer» DC Ac

49616.	What is the meaning of endothermic
Answer» Reactions in which heat is absorbed called endothermic reactions Endothermic ReactionThe chemical reactions which proceed with the absorption of heat energy are called as endothermic reactions.Examples:When nitrogen and oxygen are heated together to a particular temperature of about 3000oC, nitric oxide gas is formed.N2 + O2 + Heat → 2NOCalcium carbonate decomposes into carbon dioxide and calcium oxide when heated to a temperature of about 1000oC.CaCO3 + Heat → CaO + CO2 The reaction in which heat is absorbed by substancea The reaction in which heat is absorbed

49617.	Why all normal oil getting freeze but not mustard oil ? Why? Give reason.
Answer» Because it contains acid because the mustard oil is contains acid and inhibit bacteria

49618.	Explain the following terms connected with the eye. 1 Ciliary muscle 2 blind spot
Answer» Ciliary muscles helps in the contact and relax of lens. Blind spot is an junction where image can be seen. The part of eye which holds the eye lens from two sides . It us connected to eye from one side and to schlera from.other side .

49619.	What is double coincedence of want??
Answer» It means that both the party have to agree to sell and buy each other\'s commodity without the use of money.

49620.	Objective optional rahega ya non optional
Answer» Optional rahega

49621.	Why is variations beneficial for the species but not necessarily for the individual
Answer» Variations are\xa0beneficial for the survival of the species.\xa0Populations of organisms fill well-defined places, or niches, in the ecosystem, using their ability to reproduce. However, niches can change because of reasons beyond the control of the organisms and could even wipe out the entire population.\xa0However, if some variations were to be present in a few individuals in these populations, there would be some chance for them to survive.For example - If there were a population of bacteria living in temperate waters and suppose the water temperature were to be increased by global warming. Most of these bacteria would die, but the few heat resistant variants\xa0would survive and grow further. Variation is thus useful for the survival of species over time.\xa0

49622.	Difference between vein and artries
Answer» Arteries- they transport oxygenated blood from heart to different parts of the body......they have thick wall to sustain the pressure exerted by the heart❤️. Veins-.they transport deoxygenated blood from different parts of the body to the heart.......they have thin walls because they do not feel the pressure exerted by the heart❤️

49623.	Which one is used as shaving mirror
Answer» Concave mirror is used. Concave mirror is used .. Concave mirror is used as shaving

49624.	What type of odour is observed on heating ferrous sulphate crystals?
Answer» You will observe odour of burning sulphur.

49625.	Difference between AC & DC
Answer» U Nikhil i think i know i R u from kotdwar Who r u

49626.	What is population control? \u200b
Answer» Whaaaaaa Population control is the methodology or the practice used to control and maintain the type, location and number of people that inhabit the earth.Quality and status of life have undergone a drastic change over a century. We have to thank the improvised and advanced technologies around the world for this. One of the impacts of advanced technology on the economy is reduced mortality rate and increased the birth rate. This has led to one of the most dangerous problems crippling the world today viz. population explosion.

49627.	An ester has a molecular formula c4h10o2
Answer»

49628.	Why alkene and alkyne does not form compound with one carbon atom?
Answer» Why? As they require more two carbon molecules to form double/triple covalent bond between them

49629.	Why we can see our face in a polished metal object as well as in the still water surface?
Answer»

49630.	Resistance?
Answer» The property of conductor due to which it opposes a flow of current towards a conductor is called resistance The property of conductor due to which it opposes a flow of current towards the resistor is called resistance.

49631.	What is cornia
Answer» First part of eye Responsible for maximum bending of light rays coming to eye A thin membrane which covers the eye ball and acts like a lens which refracts the light entering the eye is called cornea.

49632.	If current across a given resistance is increased by 50% .calculate the % increase in its power
Answer»

49633.	Why are food items packed in alluminium foils?
Answer» To keep it safe from rancidity Aluminium foil have properties that help in keeping food packed inside it fresh for a long time as it acts as a barrier against light and oxygen, odours and flavours and moistness and germs, thus avoiding food decay. This also helps in stopping the fats in the food oxidising or turning rancid. It also allows storing without refrigeration. To keep the food fresh and warm. Aluminium is less reactive so it don\'t react with the food. Foil provides a complete barrier to air, moisture and bacteria.

49634.	How is starch digested in alimentary canal of mam
Answer» Starch is digested in mouth by the enzyme called salivery amalyse.

49635.	What is covalent compound? Why are different from anic compound
Answer» The mutual sharing of electron are called covalent bond The sharing of electrons between element called covalent bond Ionic compound conduct electricitySoluble in water They are not soluble in water .Do not conduct electricity. The compound made by sharing of electrons, covalent compound Covalent compound are those compound with sharing of electron and anic compound transfer of electron

49636.	What are the three laws given by mendel
Answer» Law of dominanceLaw of segregationLaw of independent assort ment The Law of Dominance: A dominant trait is a trait whose appearance will always be seen in offspring. In other words, dominance describes the relationship between two alleles. If an individual inherits two different alleles from each of its two parents and the phenotype of only one allele is visible in the offspring, then that allele is said to be dominant. Mendel\'s law of dominance states that if one parent has two copies of allele A -- the dominant allele -- and the second parent has two copies of allele a-- the recessive allele -- then the offspring will inherit an Aa genotype and display the dominant phenotype.The Law of Segregation: A parent may have two distinct alleles for a certain gene, each on one copy of a given chromosome. Mendel\'s second law, the law of segregation, states that these two alleles will be separated from each other during meiosis. Specifically, in the second of the two cell divisions of meiosis the two copies of each chromosome will be separated from each other, causing the two distinct alleles located on those chromosomes to segregate from one another.The Law of Independent Assortment: Mendel\'s third law, the law of independent assortment, states that the way an allele pair gets segregated into two daughter cells during the second division of meiosis has no effect on how any other allele pair gets segregated. In other words, the traits inherited through one gene will be inherited independently of the traits inherited through another gene because the genes reside on different chromosomes that are independently assorted into daughter cells during meiosis. Law of dominance, law of segregation and law of independent assortment.

49637.	Corrosion of aluminium is advantageous. Explain
Answer» Corrosion of Aluminium is advantage because it Aluminium oxide and prevent from of the foods cooking food Corrosion of aluminium is useful. Corrosion of Aluminium occurs when the metal is exposed to oxygen, according to the following reaction :4 Al(s) + 3 O2\xa0(g) → 2 Al2O3(g)Thus a protective layer of aluminium oxide is formed on the surface of the metal, which renders the metal passive and prevents its further corrosion.

49638.	What is the eletron dot structure of ethyne
Answer» https://terpconnect.umd.edu/~wbreslyn/chemistry/Lewis-Structures/lewis-structure-for-C2H2.html? Lewis Structure for C2H2 (Ethyne) - TerpConnect But cann\'t send u here they f n\'t provides the aatachments function not my mistake soery Electron dot structure posible nhi hhh google krlo aapp

49639.	Important question of chemistry class 10
Answer» What is question??

49640.	What is methane
Answer» as we knowMeth=1General formula=CnH2n+2Put value of n=1C1H2×1+2=CH4Ans = CH4 Ch4 CH2

49641.	Name any multicellular organism which reproduces by breeding method
Answer» Hydra and paramaecium

49642.	What is penial tube
Answer»

49643.	Fertilizarion in plant
Answer» \tFertilisation is the process of fusion of male and female gametes.\tFor the fusion of male and female gametes pollen grains have to reach the surface of the stigma. This is called pollination.\tPollen grains received by the stigma, germinate and give rise to pollen tubes. Only one pollen tube finally reaches the embryosac.\tThis tube will have two male nuclei, which migrate to the tip of the pollen tube at the time of fertilization.\tUsually the pollen tube enters the ovule through micropyle and discharges the two male gametes into its embryosac.\tOne male nucleus (gamete) approaches the egg and fuses with it to form a diploid (2n) zygote. This is first fertilisation.\tThe other male nucleus (gamete) reaches the secondary nucleus (2n) and fuses with it to form endosperm nucleus which will be triploid. This is second fertilization in the embryosac.\tThus double fertilisation occurs in embryosac which is unique in flowering plants.

49644.	Whai is the similariters between pepsin and trypsum
Answer» Both convert protein to pepsinogen Both of them act on protein

49645.	Define termite reactions?
Answer» Thanks The thermite process of chemical reaction in which a metal oxide is displaced by another molten metal which is more reactive than the metal in the metal oxide, releasing a lot of heat.

49646.	Give the scientific name of photoreceptor and thermoreceptor
Answer» Photoreceptors - light receptors.Thermoreceptors - responds to heat.

49647.	give difference between series and parallel connections of resistors
Answer» In parallel combination on resistances , resistors are connected between the same end point while in series combination ,resistances are connected consecutively one after another.

49648.	What is the resonance frequency
Answer» The resonant frequency\xa0is\xa0the frequency of a resonant circuit. A Resonant circuit is also identified as\xa0LC circuit or tank circuit. This circuit comprises of inductor and capacitor attached parallel to each other. The resonant circuit is used to create a particular frequency or to select a particular frequency from a complex circuit.

49649.	Write the function of Placenta?
Answer» To provide nutrition and O2 to foetus of mother\'s Take out waste materials from foetus of mothers. Placenta is a special tissue connection between embryo and uterine wall. It acts as an endocrine gland.Role of placenta:\tIt possesses villi that increase the surface area for absorption of nutrients.\tFacilitates passage of nutrition and oxygen to embryo from mother through blood.\tWaste substances produced by embryo are removed through placenta into mother’s blood.

49650.	Is hydro power plant is conventional or non conventional and why
Answer» Water will extinct after the long years and so the solar energy that is sun so it should also put in conventional source of energy hydro power plant is conventional because if there is not water there is no hydro power plant as water is non renewable resource Conventional Convention al Non convectional

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