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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 8251. |
How do checkdams help in increasing ground water level? |
| Answer» By build checkdams the water stay at one place and the water seep into ground | |
| 8252. |
In chemistry what is osmosis |
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Answer» The movement of solvent molecules through semipermeable membrane of cell from high concentration to low concentration is known as osmosis Osmosis is the process where solvent molecules move through a semipermeable membrane from a dilute solution into a more concentrated solution (which becomes more dilute) |
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| 8253. |
What do you understand by thomson atomic model?what is its other name?why |
| Answer» Thomson proposed in jis model that an atom is a large positively charged sphere in which negatively charged particles are embedded. He also said that the positive and negative charge are equal and hence they cancel out each other.Its other name is plum pudding model. This is because it resembled a christmar pudding where the negatively charged particles( currants) are embedded in the positively charged part. | |
| 8254. |
An element X has a valency of 3.What is the molecular formula of its oxide. |
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Answer» X_2O_3 Compound\xa0\'X\' has valency 3 and \'O\' has valency 2 . L.C.M of 3 & 2 is 6 .For X = 3 *\xa02\xa0= 6For O = 2 *\xa03 = 6Therefore\xa0{tex} X_{2}O_{3} {/tex} is the formula of oxide of \'X\' |
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| 8255. |
What will be the boiling point of water at a pressure less than 1 atm. |
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Answer» I00 degree It would be less than 373 k or less than 100 degree celcius as decrease in pressure causes variation in boiling points |
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| 8256. |
What is the definition of compound |
| Answer» The combination of two or more elements or particle are form and known compound like H2 +o = H20. | |
| 8257. |
defination of vector in chaptrr why do we fall ill |
| Answer» Vector r insects which transmit diseases | |
| 8258. |
What is the difference between isobars and isotopes |
| Answer» Isotopes have the same atomic number, while isobars have the same atomic mass. Isotopes : Isotopes are atoms that have same atomic number but different mass numbers. Isotopes have the same atomic number because the number of protons inside their nuclei remains the same. | |
| 8259. |
Name the process by which a pure solid can be separated from solution in crystal form |
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Answer» Crystallisation Crystallisation Crystallisation is a process used to separates a pure solid in the form of its crystals from a solution. |
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| 8260. |
Naphthalene ball disappear with time without leaving any residue |
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Answer» because they undergo sublimation i.e., they directly change into vapour without passing through the liquid state. ... The perfumes contain solvent which carries pleasant smelling vapour Because there sublimation process Very bad answer given by Yogita Ingle Naphthalene balls disappear with time without leaving any solid because they undergo sublimation i.e., they directly change into vapour without passing through the liquid state. |
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| 8261. |
Explain the characters of urochordata with examples |
| Answer» Larval characters of Urochordates: 1. Elongated larva of Urochordata is known as ascidian tadpole larva. Adult emerges from the larva by the process of meta\xadmorphosis.2. Notochord restricted at the caudal end, hence name Urochordata.3. Dorsal hollow nerve chord spreads end to end.4. Pharyngeal gill slits are present.5. Highly active post **** tail is prominent.Adult characters of Urochordata: 1. The body of the adult is covered by a tunic (hence named Tunicata). The tunic is composed of a protein tunicin and a polysaccharide similar to plant cellulose.2. Adults are sessile and attached to the substratum of the sea.3. Incurrent branchial siphon, and ex-current atrial siphon, form entrance and exit portals for the water that circulates through the body.4. Branchial siphon opens into a branchial basket, i.e. pharynx.5. Tiny finger-like sensory tentacles encircle the incurrent siphon to examine the incoming water and prevent large parti\xadcles from entering.6. These are hermaphrodite animals; repro\xadduce both sexually and asexually. | |
| 8262. |
What are the limitation of J.J thomson model and Rutherford model of atom |
| Answer» Rutherford’s experiment was unable to explain certain things. They are:\tRutherford’s model was unable to explain the stability of an atom. According to Rutherford’s postulate, electrons revolve at a very high speed around a nucleus of an atom in a fixed orbit. However, Maxwell explained accelerated charged particles release electromagnetic radiations. Therefore, electrons revolving around the nucleus will release electromagnetic radiation.\tThe electromagnetic radiation will have energy from the electronic motion as a result of which the orbits will gradually shrink. Finally, the orbits will shrink and collapse in the nucleus of an atom. According to the calculations, if Maxwell’s explanation is followed Rutherford’s model will collapse with 10-8 seconds. Therefore, Rutherford atomic model was not following Maxwell’s theory and it was unable to explain an atom’s stability.\tRutherford’s theory was incomplete because it did not mention anything about the arrangement of electrons in the orbit. This was one of the major drawbacks of Rutherford atomic model. | |
| 8263. |
What is difference between isobars and isotopes |
| Answer» \tIsobarsIsotopesChemicals elements which have the same massDifferent atomic structure of the same elementThe atomic masses are equalThe atomic masses are\xa0differentOften the physical properties are similarUsually, physical properties are differentAtomic numbers are differentAtomic numbers are the sameChemical elements are differentsame chemical elements but in different forms\t | |
| 8264. |
Notes on chemistry all chapters |
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Answer» Can my opinion helps yu Its better you made yurself it help u a lot Yes Are you done mad |
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| 8265. |
Differentiate between buoyancy and upthrust |
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Answer» So nearly no difference Buoyant force is an upthrust only |
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| 8266. |
Which of the following substances are pure:A element B compoundC mixture |
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Answer» element Election element Element Element Element Element |
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| 8267. |
Convert 573k into celcius |
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Answer» Temp in kelvin=273+temp in °c573=273+temp in kTemp in °c=573-273Temp in °c=300 573-273=300°C |
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| 8268. |
Law of conservation of energy derive formulas |
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Answer» By these all equation we got the conclusion energy can\'t be created nor destroyed Please reply whether you understood or not? Now at last but not least, ?the body is at bottom of the cliff so the PE is 0 becoz his final v is 0. KE is1/2mv^2 now again take equation of v^2-u^2= 2gh here we have took h becoz he had covered hieght of cliff. Therefore again equation is v^2=2gh now keep it on KE equation therefore it is mgh. Mechanical energy is KE+PE. which = to mgh Now, at the middle of the hieght of the cliff at B point when he travel distance s. PE will be mg(h-s) therefore it is mgh - mgs and KE is 1/2mv^2 <- this we all know but v^2-u^2=2gs here we will take s not h because body have not covered whole hieght yet. Therefore as u=0, equation will v^2 = 2gs now keep this value v^2 in kinetic energy\'s formula so it will be = to (1/2m)into(2gs) so according to this statement KE is mgs. Therefore machenical energy is KE +PE that is mgs +mgh-mgs =mgh. At top of the cliff if body is standing let it be \'A\'. Then Ke will be 0 because the body is at rest so v=0 therefore ->If KE =1/2 mv^2 then KE will be 0. and potential energy will be muh. Therefore machenical energy = KE +potential energy that is mgh |
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| 8269. |
What do you mean by mitrochondria |
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Answer» Mitracondria is the most important cell organells and it is also called as power house the cell it takes O2 and glucose to produce co2 and H2o and ATP (adanosine triphosphate) It is the powerhouse of the cell it convert our food into the seo2 and O2 and provide energy the energy is used in our cellular activities like respiration etc. |
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| 8270. |
What is force of gravity |
| Answer» A force that attracts a body towards the centre of the earth, or towards any other physical body having mass.Issac Newton defined the force of gravity as follows:“Every particle of matter in the universe attracts every other particle with a force that is directly proportional to the product of the masses of the particles and inversely proportional to the square of the distance between them.” | |
| 8271. |
What is genatic manmanipulation |
| Answer» Genetic manipulation is a process in which genes of desirable characters are taken from a plant and transferred to another plant by the technique of hybridisation. Genetic manipulation helps in obtaining desirable agronomic characters liked Dwarfness in cereals and tallness and profuse branching in fodder crops. It is useful in developing varieties with higher yield, good quality, biotic and abiotic resistance, short maturity period, wider adoptability and desirable agronomic characteristics. | |
| 8272. |
What do you mean by oxygen cycle |
| Answer» Oxygen is an important component of everyday life. We cannot survive without oxygen. It comprises about 21% of atmospheric air. It is a component of several biological molecules such as carbohydrates, proteins, nucleic acids, and fats.Like carbon dioxide, oxygen too is cycled through the process of photosynthesis and respiration. Oxygen is also utilized during combustion or burning.Steps of oxygen cycle.Step 1)Animals take in oxygen through the process of respiration. And release CO2\xa0into the atmosphere.Step 2)Carbon dioxide, released by animals is used in plants in the process of photosynthesis.Step 3)Plants release oxygen into the atmosphere as a by-product of photosynthesis.step 4)Fuels need oxygen for combustion so they take oxygen and release CO2\xa0into the atmosphere as a by product along with other gases like N2\xa0etc.Step5)CO2\xa0is released into the air in the process of decaying of dead animals and plants.step 6)This CO2\xa0is taken by plants for the process of photosynthesis and O2\xa0is released, and this process continues. | |
| 8273. |
Full form of aids?? |
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Answer» Thx Acquired immuno deficiency syndrome Acquired immuno deficiency syndrome Acquired immuno deficiency syndrome Acquired immuno deficiency syndrome. |
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| 8274. |
What is the sum of mass number |
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Answer» Electon +neutron=mass no Mass no. is a sum of no. of protons and no. of neutrons present in an atom Proton+neutron =mass number Proton and neutron |
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| 8275. |
SI unit of kg?? |
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Answer» You are right sister You are right Wrong question because kg is si unit of mass. |
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| 8276. |
Thick nerve in our body |
| Answer» Spinal Cord | |
| 8277. |
Features of voluntry muscle |
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Answer» Voluntary muscles are those muscle which can move to our will Voluntary muscles or striated muscles are those which work according to the one’s desire or are under control. Volunatey muscles are Long, cylindrical and unbranched. . It is thick Sarcolemma . |
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| 8278. |
Write the features of voluntery muscles |
| Answer» These are called skeletal muscles as they are found attached to the bones and help in the body movements. The cells are cylindrical, unbranched, striated and multi nucleated. | |
| 8279. |
Why dust particles are called pollutants |
| Answer» Because these are undesirable substance present in in any abiotic natural resource | |
| 8280. |
Who is The first to see an atom?? |
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Answer» Its John dalton ?? i would like to thank all. Thanks to all? According to me jj Thomson or not ?? John dalton no one as an atom is too small Democritus John dalton No one is able to see the atom because it is too small Rutherford Rather ford |
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| 8281. |
What is carnal ray |
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Answer» Canal rays are also called anode rays these are positively charged which generated at cathode and move towards anode Canal rays are streams of positively charged particle which move towards the negative electrode in a discharge tube when high voltage electricity is passed through a gas at very low pressure taken in the discharge tube Its Canal rays that are streams of positively + charged which move towards negative - electrode in a discharge do when it when hi what is electricity is passed through it in low temperature that is Canada\'s got it ..........Thanks?? |
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| 8282. |
Difference between suspension colloid and true solution |
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Answer» Suspension solution Size of solute particles are visible with naked eyes. Translucent or opaque. Solute particle settle down. size of solute particle is more than 100nm.Colloidal solutionSize of solute particles are not visible with naked eyes. Translucent. Colloidal particle do not settle down. Size of solute particles between 1nm to 100nm Chal ma pagl h kya |
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| 8283. |
What are the differences between monocots and dicots? |
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Answer» Monocot have one cotyledons but dicots have two cotyledons monocot have 1 seed and dicot have 2 seeds Hey guys |
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| 8284. |
What do you mean by universal law of gravitation ? |
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Answer» Every object in the universe attracts every other object which is directly proportional to the masses of the objects and inversely proportional to the square of the distance between them. The force which is constant in everywhere in a object is called universal law of gravitation |
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| 8285. |
What is relation between linear momentum and kinetics energy |
| Answer» | |
| 8286. |
what is kinetic and potential energy |
| Answer» Kinetic energy-energy possesed by an onject due to its motionPotential energy-energy possesed by an object due to its virtue of its position | |
| 8287. |
unbiunium atomic number |
| Answer» Unbiunium, also known as eka-actinium or simply element 121, is the hypothetical chemical element with symbol Ubu and atomic number 121.a | |
| 8288. |
Connective tissues |
| Answer» \tIt protects and supports the body.\tThe cells are loosely spaced and embedded in an intercellular matrix.\tThe matrix may be jelly like, fluid, dense or rigid.\tThe nature of matrix differs in concordance with the function of the particular connective tissue. | |
| 8289. |
Rutherford model of an atom |
| Answer» Ernest Rutherford was interested in knowing how the electrons are arranged within an atom. Rutherford designed an experiment for this. In this experiment, fast moving alpha (α)-particles were made to fall on a thin gold foil.\tHe selected a gold foil because he wanted as thin a layer as possible. This gold foil was about 1000 atoms thick.\tα-particles are doubly-charged helium ions. Since they have a mass of 4µ, the fast-moving α-particles have a considerable amount of energy.\xa0It was expected that α-particles would be deflected by the sub-atomic particles in the gold atoms. Since the α-particles were much heavier than the protons, he did not expect to see large deflections.\xa0But, the α-particle scattering experiment gave totally unexpected results . | |
| 8290. |
1) cartilage has ______ cells. 2) bone has _______ cells |
| Answer» Cardilage has flexible cell and bone has inflexible cell | |
| 8291. |
Earth moving around sun is doing zero work done. Why? Explain with reason. |
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Answer» Displacement is zero The work done by earth on the sun isZERO because the force acting on earth by the sun is the centriptal force and it works in 90 degree and the value of cos 90 is equal to 0. work done by the earth is zero in this case. |
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| 8292. |
Name a device which convert electrical energy to mechanical energy? |
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Answer» Fan Electric Generator is the electric device that converts mechanical energy into electrical energy. It works on the principle of Electromagnetic Induction. Motor |
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| 8293. |
What is human\'s scientific name? |
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Answer» Homo sapiens Homo sapiens Homo sapiens Homo sapiens |
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| 8294. |
State the condition essential for doing work |
| Answer» The condition essential for doing work is (1)The force should be applied and the object get displaced by the force | |
| 8295. |
Compare the properties of electron proton and neutron |
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Answer» Electron have negative charge and proton have positive charge and negative are neutral Electron are negatively Charged particle and Proton are positively charge particle Neutron are no charged particle |
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| 8296. |
Perpendicular force on a surface |
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Answer» Thrust Upthrust or buoyant force Thrust |
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| 8297. |
what is atomecity |
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Answer» The numbers of atom in a molecule The no of atoms constituting a molecule No. Of atoms in a molecule |
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| 8298. |
Full form of SONAR? |
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Answer» Sound Navigation And Ranging Sound Navigation and ranging Sound navigation and ranging Sound navigation and ranging Sound Navigation abd ranging Sound Navigation and Ranging Sound Navigation and Ranging |
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| 8299. |
Drawbacks of Rutherford model |
| Answer» Any particles in a circular orbit goes under acceleration. They would not radiate energy.They loses energy, and finally fall into the nucleus. | |
| 8300. |
Why are children given vaccinations |
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Answer» Yes the vaciination gives power to our body to figat aganci the backteriya Vaciinations provides us with immunity to fight against the diseases So that they do not get diseases |
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