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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.
| 6251. |
define 2 law of newton ? explain |
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Answer» There are thrèe laws of newton about motion such as 1 Inertia :inertia is a property of an object if a body being in rest position then it will want to remain in rest position its position does not change by any external force applied . And if abody being is the motion then the body want to be in the motion its position doesn\'t change by any external force applied. This is the first law .2 The rate of change momentum of an object by applied force them the dosplacement into force direction . And 3 Action and reaction always equal in opposite direction. (Hope its helful for you ) F=ma An action have an equal reaction It state that rate of change of momentum is directly proportional to the applied unbalanced force |
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| 6252. |
What do u mean by latent heat?Define its types |
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Answer» The heat is required to change 1 kg solid into liquid state is called is latent heat of fusion. And The heat is required to change 1 lt water into its gaseous state then it is called the latent heat of vaporisation. Hope its helpful for you Latent heat or hidden heat is the energy required to change the state It is the hidden heat being used to chamge the state of substance. Means liquid to gas through heat |
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| 6253. |
Application of ultrasonic waves? |
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Answer» 1.SONAR2.Used for Cleaning-the thing is put in a cleaning solution and ultrasonic waves are passed through it.Then,the obj. Shake vigorously and the dust particles come out3.ultrasonography4.Bats use to catch it\'s prey5.To check a crack 6.To observe several body parts Plz don\'t see spelling and grammatical mistakes Use to identify brain tumer Use to identify stone in our body |
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| 6254. |
A rubber band can change its shape on stretching. Will you classifi it as solid or not? |
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Answer» Yes i classify this is solid . When we aaplied the force then the rubber stretches . After removing the force the rubber can come in their orignal shape. This is the change of state on applying pressure. Yes we will classify it as solid because agter removing the forve from it ,it regains its origianal shape |
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| 6255. |
What is mitrochondiria |
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Answer» \tMitochondria are round "tube-like" organelles that provide energy to a cell in the form of ATP (Adenosine Triphosphate) for performing different chemical activities for the sustainance of life.\tThe mitochondria is also called powerhouse of the cell.\tIt is surrounded by two membranes.\tThe outer membrane is porous wherea the inner membrane has deep folds that provides a large surface to perform the chemical reactions required for the generation of ATP.\tThe inner membrane is compartmentalized into various cristae.\tThe ground substance or space enclosed by inner membrane is called matrix.\tMitochondria have their own DNA and ribosomes and are hence capable to produce some of their required proteins all by themselves. Power house of cell |
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| 6256. |
What is gymnosperms |
| Answer» The term gymnosperm is derived from two different words. They are\tgymno– means naked and\tsperma– means seed.The plants belonging to this group have naked seeds.The plants of this group are generally perennial, evergreen and woody.Examples of plants belonging to this group are pines and cycas. | |
| 6257. |
Who discovered these 5 kingdoms in diversity |
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Answer» Robert hardung whittaker (Decmbee 27, 1920 - october 20, 1980) Robert H. Whittaker |
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| 6258. |
How can we find neutrons without mass numbet |
| Answer» L | |
| 6259. |
Differences between A) Solid, Liquid & GasB) Evaporation & Boiling (Can anybody please help me ) |
| Answer» \tThe Solid State:Properties of solids:\tSolids have a fixed shape and a fixed volume.\tSolids cannot be compressed much.\tSolids have high densities. They are heavy.\tSolids do not fill their container completely.\tSolids do not flow.\xa0\tThe Liquid State:Properties of liquids:\tLiquids have a fixed volume but they have no fixed shape.\tLike solids, liquids cannot be compressed much.\tLiquids have moderate to high densities. They are usually less dense than solids.\tThey do not fill their container completely.\tThey generally flow easily.The aquatic animals can breathe under water due to the presence of dissolved oxygen in water. Thus, we may conclude that solids, liquids and gases can diffuse into liquids. The rate of diffusion of liquids is higher than that of solids. This is due to the fact that in the liquid state, particles move freely and have greater space between each other as compared to particles in the solid state.\xa0\tThe Gaseous State:Properties of gases:\tGases have neither a fixed shape nor a fixed volume.\tThey can be compressed easily.\tThey have low densities.\tThey fill their container completely.\tThey flow easily.The process of a liquid changing into vapour even below its boiling point is called evaporation. Whereas the temperature at which a liquid starts boiling at the atmospheric pressure is known as its boiling point. | |
| 6260. |
Define fusion??? |
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Answer» But he has asked fusion.Latent heat of fusion is another thing.Fusion can be defined process in which the solid changes into liquid at atmospheric pressure and at its melting point.In other words you may call it a the melting of a solid into a liquid. Heat energy required to change 1 kg of solid into liquid at atmospheric pressure at its melting point at room temperature is called latent heat of fusion Latent heart of fusion:heat energy required to change 1kg solid into liquid is called latent heat of fusion |
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| 6261. |
Sponge |
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Answer» Actually it is Porifera Animalia |
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| 6262. |
Crop rotation |
| Answer» Crop rotation : crop rotation is the practice of growing a series of different types of crops in the same area in sequential seasons.Advantages of crop rotation:\tIt help in reducing the pests build up.\tReduces soil erosion.\tHelps in control weeds.\tIt prevents diseases. | |
| 6263. |
What is atom ,who discovered it an when and how it works |
| Answer» Model for the structure of an atom had been first proposed by J.J. Thomson. Later, followed many theories however, Rutherford\'s model was finally accepted as the correct nuclear model. Rutherford had shown his model with help of an experiment. | |
| 6264. |
If earth is around why we not feel that it is around |
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Answer» Meko nahi patA Because of gravitational force. |
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| 6265. |
What is the difference between healthy and disease free? |
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Answer» \tHealthyDisease-free1. It is a state of physical, mental and social well\xa0being.1. It is a state of absence of any discomfort or derangement of the functioning of the body.2. It refers not only to the individual but also its social and community environment.2. It refers to the individual.3. A ‘healthy’ individual is one who is able to perform normal under given situation.3. A ‘disease-free’ individual may have good health or poor health\t Healthy is astate of complete physical and social well being Deases-free is a state of absence of discomfort or dearrangment of body and their functio |
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| 6266. |
Wat is phylem |
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Answer» In biology, a phylum is a level of classification or taxonomic rank below Kingdom and above Class. Traditionally, in botany the term division has been used instead of phylum, although the International Code of Nomenclature for algae, fungi, and plants accepts the terms as equivalent. Every single animal, from the smallest of insects to the blue whale (largest animal on earth) is classified into various phylum\xa0and classes. This classification is the basis of the Animal Kingdom or Kingdom Animalia. All the members of the animal kingdom are called Metazoa.\xa0 |
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| 6267. |
What are the desirable agronomic characteristics for crop improvement? |
| Answer» Desirable agronomic characteristics are:(i) Tallness and profuse branching are desirable characters for fodder crops.(ii) Dwarfness is desired in cereals, so that less nutrients are consumed by these crops. | |
| 6268. |
What is the defination of gravitation |
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Answer» Every object in this universe attract each other with a force which is directly propostional to the product of their masses and inversely propostional to the square distance between them Movement Or a tendency to move toward center of earth |
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| 6269. |
Explain about different types of blood cell and give its function |
| Answer» Red blood cells (RBCs) : RBCs are the biconcave cells; also known as erythrocytes. RBCs contain the iron-rich protein called hemoglobin; give blood its red color. RBCs are most copious blood cell produced in bone marrows. Their main function is to transport oxygen from and to various tissues and organs.White blood cells (WBCs) : Leucocytes are the colorless blood cells. They are colorless because it is devoid of hemoglobin. They further classified as granulocytes and agranulocytes. WBCs mainly contribute to immunity and defense mechanism.Platelets: Thrombocytes are specialized blood cells produced from bone marrow. Platelets come into play when there is bleeding or hemorrhage.They help in clotting and coagulation of blood.\xa0Platelets help in coagulation during a cut or wound. | |
| 6270. |
Two uses of iodine tincture |
| Answer» Tincture of iodine or iodine tincture is an antiseptic, it is also called weak iodine solution. Usually 2–7% elemental iodine, along with potassium iodide or sodium iodide, dissolved in a mixture of ethanol and water. Antiseptics are used to kill the animate micro organisms that may be pathogenic or may cause disease.It is used in skin infection. | |
| 6271. |
What do you mean by wave length ? |
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Answer» The distance between two consecutive comression or rarefaction is called wavelength Wave length:in sound waves the combined length of a compression and an adjacent rarefaction is called its wavelength. In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave\'s shape repeats. It is thus the inverse of the spatial frequency |
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| 6272. |
Why is kelvin scale is regarded better than celcius scale? |
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| 6273. |
Can anybody give me the solution of question 11 (exercise) atoms and molecules |
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| 6274. |
Name the physical quantity in kg m/s |
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Answer» Ya it\'s right Momentum because momemtum :- the product of mass and velocity is called momemtum Mass is denoted by kg and velocity is denoted by m/s Momentum,As momentum(p)=mass(m)×velocity(v) |
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| 6275. |
Is there any formula for finding displacements of an object |
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Answer» U can use newton equation 2and3 Yah |
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| 6276. |
Derive newton\'s 1st law of motion from 2nd law of newton. |
| Answer» \tFirst Law of Motion: Newton’s first law of motion states that a body at rest will remain at rest, and a body in motion will continue in motion in a straight line with a uniform speed, unless it is compelled by an external force to change its state of rest or of uniform motion.All objects resist a change in their state of motion. The tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called inertia. This is why, the first law of motion is also known as the law of inertia. We tend to remain at rest with respect to the seat until the drives applies a braking force to stop the motorcar. With the application of brakes, the car slows down but our body tends to continue in the same state of motion because of its inertia. A sudden application of brakes may thus cause injury. Safety belts are worn to prevent such accidents as they exert a force on our body to make the forward motion slower. When we are standing in a bus and the bus begins to move suddenly we tend to fall backwards because the sudden start of the bus brings motion to the bus as well as to our feet in contact with the floor of the bus. But the rest of our body opposes this motion because of its inertia.When a motorcar makes a sharp turn at a high speed, we tend to get thrown to one side due to the law of inertia. We tend to continue in our straight-line motion.\xa0\tSecond Law of Motion:The second law of motion states that the rate of change of momentum of an object is proportional to the applied unbalanced force in the direction of force.The quantity of motion in a body depends on the product of mass and velocity of the body termed as momentum. The momentum (p) of a body is defined as the product of its mass (m) and velocity (v) and has the same direction as that of the velocity. Its SI unit is kilogram metre per second (kg m s−¹).Momentum = mass × velocityp = m × vMomentum has both magnitude as well as direction; hence it is a vector quantity.Momentum of a body at rest is zero.\xa0\tMathematical Formulation of Second Law of Motion:Suppose an object of mass, m is moving along a straight line with an initial velocity, u. It is uniformly accelerated to velocity, v in time, t by the application of a constant force, F throughout the time, t. The initial and final momentum of the object will be, p1 = mu and p2 = mv respectively.The change in momentum ∝ p2 – p1∝ mv – mu∝ m × (v – u).The rate of change of momentum ∝ m × (v – u)/tOr, the applied force,F ∝ m × (v – u)/tF = km × (v – u)/t = kmaHere, a = [(v – u)/t ] is the acceleration, which is the rate of change of velocity. The quantity, k is a constant of proportionality.The SI unit of mass and acceleration are kg and ms-2.One unit of force is defined as the amount that produces an acceleration of 1 ms-2 in an object of 1 kg mass. 1 unit of force = k × (1 kg) × (1 ms-2). | |
| 6277. |
Relation between commercial unit of energy and SI unit of energy |
| Answer» 1KWh or unit=0.36*10**5 | |
| 6278. |
describe the micrescopic structure of cell? |
| Answer» In some organisms like bacteria, the nuclear region of the cell may be poorly defined due to the absence of a nuclear membrane. Such an undefined nuclear region containing only nucleic acids is called a nucleoid. Such organisms, whose cells lack a nuclear membrane, are called prokaryotes. Organisms with cells having a nuclear membrane are called eukaryotes. Prokaryotic cells also lack most of the other cytoplasmic organelles present in eukaryotic cells. | |
| 6279. |
State third law of motion derive |
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Answer» Third law of motion has no derivation Newton 3 law of motion Every action there is an equal and opposite reactionNo drive |
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| 6280. |
How will you prepare 25g of aqueous solution of having 10 mass percent of sugar? |
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| 6281. |
What is pure subtance?? |
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Answer» Pure Substance: \xa0A substance which is made of\xa0one kind of particle.Examples -\xa0iron, aluminium, silver and gold.On the basis of their chemical composition, pure substances are classified as elements and compounds. A substance which has only one type of atoms is called a pure substance |
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| 6282. |
Define radian. |
| Answer» Radian is a supplementary angle | |
| 6283. |
Why does the skin of your fingers shrink when we wash clothes fpr a long time |
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Answer» Soap solution is a hypertonic solution i.e., more concentrate than our skin cells. As we know, when the cell is immersed in a hypertonic solution, water diffuse out of the cells by osmosis (diffusion of water across semi permeable membrane), due to lower concentration of water outside the ceil. As a result, the cell shrinks. The process is called exosmosis. During washing of clothes, exosmosis takes place in the skin cells. This leads to shrinkage of skin over the fingers while washing clothes for a long time. It is due to the process of exosmosis.Water consentration is more outside the finger and during the process of osmosis the solvent particles moves from higher consentration to lower consentration. Hence water outside is more as compared to finger Because of the water? |
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| 6284. |
We feel cool after doing vigorous exercise. Why |
| Answer» It is so because ,when we exercise,there is sweat on our body and when this sweat evaporates, it takes LHV from our body, so our body feels cool | |
| 6285. |
Why we are able to SIP hot tea or milk faster from a saucer rather than a cup? |
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Answer» I think it would be because hot milk or tea particles would be having more kinetic energy because the rate of evaporation increase with an increase of surface area in the case of saucer as compared to cup and those hot tea or milk in saucer cools faster than a cup so we are able to SIP hot tea or milk faster from a saucer rather than a cup. |
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| 6286. |
"soil is formed by water" .if u agree this statement give reason for your answer. |
| Answer» Yes soil is formed by water because soil is a result of weathering of rocks and water also affect weathering | |
| 6287. |
What is immunisation programme? Name which are eliminated by this programme |
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| 6288. |
Momention |
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Answer» The product of mass and velocity is called as momentum Did you mean momentum?If so then momentum is the product of the mass and velocity of the object. |
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| 6289. |
Why d block elements are called transition elements |
| Answer» The position of d-block elements is in between the s-block and p-block elements in the periodic table. These\xa0d-block elements\xa0are\xa0called transition elements\xa0because they exhibit transitional behaviour between s-block and p-block\xa0elements.Their properties are transitional between highly reactive metallic elements of s-block which are typically ionic compounds and the elements of p-block which are largely covalent. | |
| 6290. |
Which isotope of uranime is used in nuclear feild |
| Answer» U-235 is the most easiest fissionable isotope but in commercial nuclear power plants , U-238 is used in maximum amount. | |
| 6291. |
How can we cross multiply atoms and molecules |
| Answer» Chemical formula of a compound is the symbolic representation of its atomic constituents. In other words, a chemical formula represents the composition of a molecule in terms of the symbols of the elements present in that molecule.To write the chemical formula of a compound, one should have prior knowledge of two things:The symbols of the constituent elementsThe combining capacity (valency) of each atom or ion constituting the compound | |
| 6292. |
What is nitrogen cycle in a simple way |
| Answer» It is cycling of nitrogen in form of nitrogenous compounds from abiotic nutrient pool to the biotic organism and back to abiotic nutrient pool | |
| 6293. |
Who is science |
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Answer» It is very important subject What is science |
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| 6294. |
What is pplo,s cell |
| Answer» Polo stands for pluero pnemonia like organism which the the smallest cell known till now..it is also known as mycoplasma | |
| 6295. |
How sonar produces multiple refraction |
| Answer» Through rerefraction or reflection | |
| 6296. |
What\'s is kinetic energy |
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Answer» Kinetic energy is the energy obtained by a body by virtue of its motion The energy possed by the body due its motion is called kinetic energy The energy possed by the body due to its motion is called kinetic energy |
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| 6297. |
Why are striated muscles also called volintaty and keletal muscles |
| Answer» Stratiated muscles are called skeletal as they are joint to bones and are also called vounteery as they function when we/our brain suppose them to | |
| 6298. |
10 year previous paper send please |
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| 6299. |
What are lichens. |
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Answer» Lichens are the green algae which come under plantae. They usually grow on stem of the plants where there is less pollution. The lichens and fungi together make a symbiotic relationship Symbiotic association between algae and fungi |
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| 6300. |
What is dalton theory |
| Answer» \xa0The main postulates of Dalton’s atomic theory (Dalton 1808) are:1.\xa0Matter is made up of very small indivisible particles called atoms.2.\xa0Atoms of the same element are identical in all respects.3.\xa0Atoms of different elements differ in properties and mass.4.\xa0Atoms combine in a simple but fixed ratio to form compound atoms (now called molecules).5.\xa0Atom is the smallest particle which can take part in a chemical reaction.6.\xa0Atom can neither be created nor destroyed during a chemical reaction.7. Atoms of two elements may combine in different ratios to form more than one compound. | |