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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.
| 3001. |
Explain the function of various cell? |
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Answer» Aaise marun ga Batana matlab Matlab Tera cell kaisa hai |
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| 3002. |
Define average power....... |
| Answer» Average power\xa0is defined as the ratio of total work done by the body to the total time taken by the body. The unit of\xa0average power\xa0is kiloWatt hour.\xa0It is the\xa0average\xa0amount of work done or\xa0energy\xa0converted per unit of time. The\xa0average power\xa0is often simply called "power" when the context makes it clear. The instantaneous\xa0power\xa0is then the limiting value of the\xa0average power\xa0as the time interval Δt approaches zero. | |
| 3003. |
Define kinetic energy.obtain and express for the kinetic energy of an object |
| Answer» Kinetic energy of an object\xa0is the\xa0energy\xa0that it possesses due to its motion. It is\xa0defined\xa0as the work needed to accelerate a body of a given mass from rest to its stated velocity.\xa0Derivation:\xa0Let us consider an object of m which is at rest lying on a table.Let A force F acts on the object which moves the object through a distance S.The workdone=F×SW=Fnet\u200b×S-------(1)Let the work done on the object causes a change in its velocity from u to V and let a be the acceleration.From Third equation of motion:V²−u²=2ass=V²−u²/2a----------(2)By Newton\'s Second law:F=ma------(3)From equation (1), (2) and (3)W=ma×(V2−u2/2a)=(1/2)m(V2−u2)As we assumed object at rest,\xa0u=0W=(1/2)mV2we know that the kinetic energy of a body moving with a certain velocity is equal to work done on the object to acquire that velocity from rest.∴K.E=1/2mV2 | |
| 3004. |
State law of constant proportion |
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Answer» The law of constant proportion stated that chemical compounds are made up of elements that are present in fixed ratio by mass. This implies that any pure sample of compound,no matter the source,will always consist of the same elements that are present in the same ratio by mass. For example - pure water always contain hydrogen and oxygen in a fixed mass ratio. The\xa0law of constant proportionsstates that chemical compounds are made up of elements that are present in a fixed ratio by mass. This implies that any pure sample of a compound, no matter the source, will always consist of the same elements that are present in the same ratio by mass. |
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| 3005. |
Derive the relationship. F=m(v_U) /t, where each symbol has its usual significance. |
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| 3006. |
Study science |
| Answer» Yeah !!!! | |
| 3007. |
1917 से पहले रूस की कामकाजी आबादी यूरोप में बाकी देशों के मुकाबले किन दो स्तरों पर विनती |
| Answer» कियोकी | |
| 3008. |
Explain how the separation of cream from milk takes place |
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Answer» The process of centrifugation is used to separate\xa0cream from milk. The\xa0milk\xa0is put in a close container in big centrifuge machine. ... The centrifugal force acts on the\xa0milk\xa0and due to this, the\xa0milk\xa0separates into\xa0cream\xa0and skimmed\xa0milk. The\xa0cream, being lighter, floats over the skimmed\xa0milk\xa0and can then be removed. Centrifugation method The process of centrifugation is used to separate\xa0cream from milk. The\xa0milk\xa0is put in a close container in big centrifuge machine. ... The centrifugal force acts on the\xa0milk\xa0and due to this, the\xa0milk\xa0separates into\xa0cream\xa0and skimmed\xa0milk. The\xa0cream, being lighter, floats over the skimmed\xa0milk\xa0and can then be removed. The process of centrifugation is used in dairies to separate cream from milk .\xa0Centrifugation is a method for separating the suspended particles of a substance from a liquid in which the mixture is rotated at a high speed in a centrifuge machine.The milk is put in a closed container in big centrifuge machine .when the centrifuge machine is switched ON, the milk is rotated at very high speed in a container.\xa0Due to this process, milk separates into cream and skimmed milk.\xa0The cream being lighter floats over the skimmed milk \xa0Milk is a suspension of tiny droplets of oil (cream) in a watery liquid. The process of centrifugation is used to separate cream from milk.\xa0The milk is put in a close container in big centrifuge machine. When the centrifuge machine is switched on, the milk is rotated (or spun) at a very high speed in its container. The centrifugal force acts on the milk and due to this, the milk separates into cream and skimmed milk. The cream, being lighter, floats over the skimmed milk and can then be removed.Answered by | 8th May, 2014, 11:19: AM |
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| 3009. |
What is atomic valence? |
| Answer» The combining capacity of an atom is known as its valency. The number of bonds that an atom can form as part of a compound is expressed by the valency of the element.As we know, the number of electrons in the outermost shell of hydrogen is 1, and in\xa0magnesium,\xa0it is 2. Therefore, the valency of hydrogen is 1 as it can easily lose 1 electron and become stable. On the other hand, that\xa0of magnesium is 2 as it can lose 2 electrons easily and also attain stability. | |
| 3010. |
What is moler mass? |
| Answer» In chemistry.......The molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance in that sample, measured in moles.......In the international system of units (SI), the base unit of molar mass is kg/mol.. | |
| 3011. |
What is a substance ???? |
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Answer» A\xa0substance\xa0is a pure single form of matter. It cannot be separated into other kinds of matter by any physical process. For example: sugar, sodium chloride DescriptionA chemical substance is a form of matter having constant chemical composition and characteristic properties Anything that cannot be broken into further particles by applying physical process is called substance A substance is a matter that has definite properties and composition. Every pure compound and element is a substance. |
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| 3012. |
What is division of labour? Explain it in context of multicelluear organisms |
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Answer» The division of labour in multicellular organisms refers to the presence of different organ systems that are incharge of taking care of a particular life process. For example, the respiratory system, helps the body in obtaining oxygen from the air and supplying it to the rest of the body. In unicellular organisms, the cell is capable of performing the different life processes with the help of the different cellular organelles. The division of labour in multicellular organisms refers to the presence of different organ systems that are incharge of taking care of a particular life process. For example, the respiratory system, helps the body in obtaining oxygen from the air and supplying it to the rest of the body. |
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| 3013. |
Why lysosomes known as suicide bags |
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Answer» If the cell membrane is damamged or cell is disturbed then the lysosomes may burst and its enzyme can digest its own cell, hence lysosomes is known as suicidal bags of cell. Lysosomes can be termed as waste disposal system of the cell. For almost all type of organic materials they contain digestive enzymes. For example, when cell gets damaged, lysosome may burst and the enzymes digest their own cell. Therefore lysosomes are known as the Suicidal bags of a cell or we can say that they posses different kind of hydrolases on release of these enzymes that cause death of cell. When cell gets damaged, lysosome may burst and the enzymes digest their own cell. Therefore lysosomes are known as the Suicidal bags of a cell or we can say that they posses different kind of hydrolases on release of these enzymes that cause death of cell. |
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| 3014. |
Which cell organelles called as police of traffic |
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Answer» Golgi body Golgi Apparatus Golgi apparatus Golgi body is called the traffic police of cell because it acts as a way station or a assembly area for the storage ,processing and packaging for various cellular secretions. It also packages material synthesised by cell and dispatch them either to intracellular or extra cellular targets such as zymogens. Functions • Golgi vesicles are often , referred to as the “traffic police” of the cell. |
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| 3015. |
Write 8 differences between inter cropping and mixed cropping? |
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Answer» https://youtu.be/pIj-JQcBb9I \tIntercroppingMixed CroppingThe main objective is to utilise the space left between the rows of the main cropThe main objective here is to get at least one crop in a favourable conditionSpecific planting pattern followedNo planting pattern followedDifferent fertilizers and pesticides are used for different cropsSame fertilizers and pesticides used for all the cropsSeeds aren’t mixed before sowingSeeds are mixed before sowingFollowed to increase the productivity of cropsFollowed to reduce the risk of crop failures due to unfavourable climatic conditionsThere is a considerable difference in the life cycle and the duration of maturity in different cropsAll crops have a similar life cycle and duration of maturity\t |
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| 3016. |
What is the difference between Eukaryotic cells and Prokaryotic cells. |
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Answer» Thanks Prokaryotic cell 1. They are small i size 2.They contain a nuclear membrane is called nucleoid 3.They contain on one chromosome \tProkaryotic cellEukaryotic cellProkaryotic cells\xa0are\xa0generally small in size.Eukaryotic cells\xa0are\xa0comparatively larger in size.The\xa0nuclear material is undefined having no nuclear membrane\xa0and is called nucleoid.Nucleus having a\xa0nuclear membrane present.A\xa0single chromosome is present.More than one chromosome is present.It\xa0does not contain membrane bound cell organelle.It\xa0contains membrane bound cell organelles\xa0like mitochondria, plastids etc.Ribosome is of 70s type.Ribosome is 80s type.Cell division takes place by\xa0fission or budding or fragmentation.Cell division takes place by\xa0mitosis and meiosis\t |
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| 3017. |
Plz give all the unmentioned formulas of motion |
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| 3018. |
meitosis and mesosis cell divison with all the steps and their explanation |
| Answer» Most of the time when people refer to “cell division,” they mean\xa0mitosis, the process of making new body\xa0cells.\xa0Meiosis\xa0is the type of\xa0cell division\xa0that creates egg and sperm\xa0cells. ... During\xa0mitosis, a\xa0cell\xa0duplicates all of its contents, including its chromosomes, and splits to form two identical daughter\xa0cells. Mitosis\xa0is a\xa0process\xa0of nuclear\xa0division\xa0in eukaryotic\xa0cells\xa0that occurs when a parent\xa0cell\xa0divides to produce two identical daughter\xa0cells. During\xa0cell division,\xa0mitosis\xa0refers specifically to the separation of the duplicated genetic material carried in the nucleus. In meiosis,\xa0prophase,\xa0metaphase,\xa0anaphase\xa0and\xa0telophase\xa0occur twice. The first round of division is special, but the second round is more like mitosis. In mitosis,\xa0prophase,\xa0metaphase,\xa0anaphase\xa0and\xa0telophase\xa0occur once. Chromosomes condense and the centrosomes begin to form an early spindle. | |
| 3019. |
4. *State the difference between simple distillation & fractional distillation. |
| Answer» \tDistillationFractional DistillationDistillation is a process used to separate liquids with boiling points which comprise gaps around 50 degrees at least.Fractional Distillation is a process used to separate liquids with closer boiling pointsSimple distillation will have only one cycle of distillation i.e vaporization-condensation throughout the process.The fractional distillation will have at least two cycles.The experimental set up is simple. Needs a simple apparatus with two simple flasks and a condenserThe experimental set up is complex. We need a complex apparatus with a fractioning column.Used in the purification of seawaterUsed in crude oil refining\t | |
| 3020. |
What is newton law of motion |
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Answer» There are three laws of motion1) Everything in the universe cannot change its state of rest or motion untill unless an external force is acted on it.2) The rate of change of momentum is directly proportional to the applied force and change takes place in the direction of the applied force.3)To every action there is equal and opposite reaction Thanks Newton’s First Law of Motion:Any object remains in the state of rest or in uniform motion along a straight line, until it is compelled to change the state by applying external force.Explanation:\xa0If any object is in the state of rest, then it will remain in rest untill a exernal force is applied to change its state. Similarly an object will remain in motion untill any exeternal force is applied over it to change its state. This means all objects resist to in changing their state. The state of any object can be changed by applying external forces only. |
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| 3021. |
sr what is the gas |
| Answer» Gas:\xa0Matters which have indefinite shape and volume are called gases. For example - air, oxygen, hydrogen, nitrogen, carbon-dioxide, etc.Properties of gas\tGas has indefinite shape\tGas has no fixed volume.\tGas gets the shape and volume of container.\tGas fills the container completely.\tGas has very low density.\tBecause of low density gas are light.\tGas can flow easily and hence are called fluid. | |
| 3022. |
What is brownion motion? |
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Answer» Thanks. \xa0Brownian movement or motion is\xa0zigzag, random movement of microscopic particles suspended in a liquid or gas, caused by collisions between these particles and the molecules of the liquid or gas.One of the most common examples of Brownian motion is diffusion. Cases, where pollutants are diffused in air or calcium diffused in bones can be considered examples of this effect.\xa0 |
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| 3023. |
A prokaryotic cell lacks |
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Answer» Prokaryotic cell lacks centrosomes Medical Prokaryotes lack a defined nucleus (which is where DNA and RNA are stored in eukaryotic cells), mitochondria, ER, golgi apparatus, and other membrane bound organelles. In addition to the lack of organelles, prokaryotic cells also lack a cytoskeleton. |
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| 3024. |
The formula of chloride of a metal M is MCl3, then the formula of the phosphate of metal M will be |
| Answer» MPO4Valency of chlorine is -1 hence valence of metal in the given compound\xa0MCl3\u200b\xa0is +3. Valency of phosphate ion is\xa0PO43−\u200b. By cross multiplication method, formula of the given compound is\xa0MPO4\u200b, as valency of both is same they combine in unit ratio. | |
| 3025. |
What Is the property of bodies to resist a change in their velocity or change in their state of rest |
| Answer» Inertia is the tendency of an object to resist changes in its state of motion.The state of motion of an object is defined by its velocity - the speed with a direction. Thus, inertia could be redefined as follows: Inertia: tendency of an object to resist changes in its velocity. An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force. An object in motion with a velocity of 2 m/s, East will (in the absence of an unbalanced force) remain in motion with a velocity of 2 m/s, East. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force. Objects resist changes in their velocity. | |
| 3026. |
Name the pathogen of polio |
| Answer» Polio, or poliomyelitis, is a disabling and life-threatening disease caused by the poliovirus. The\xa0virus\xa0spreads from person to person and can infect a person\'s spinal cord, causing paralysis (can\'t move parts of the body). | |
| 3027. |
If mass of an object is 2kg there velocity change from 2 m/s to 4 m/s, so calculate work done |
| Answer» 4N | |
| 3028. |
What is the biogeochemical? |
| Answer» The ways in which an element—or compound such as water—moves between its various living and nonliving forms and locations in the biosphere is called a\xa0biogeochemical\xa0cycle.\xa0Biogeochemical\xa0cycles important to living organisms include the water, carbon, nitrogen, phosphorus, and sulfur cycles. | |
| 3029. |
s=v+u/2aWhat is the (a) |
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Answer» Acceleration A is mean to acceleration Acceleration It\'s acceleration a is acceleration |
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| 3030. |
v+us=---------- 2aWhat is the (a) |
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Answer» It\'s acceleration a is acceleration |
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| 3031. |
Give reasonsWater is liquid at room temperature An iron almirah is a solid |
| Answer» Water\xa0at\xa0room temperature\xa0does not have a fixed shape but flows to take the shape of the container. Hence,\xa0water\xa0at\xa0room temperature\xa0is a\xa0liquid.\xa0An\xa0iron almirah is a solid\xa0at\xa0room temperature\xa0because its melting point as well as boiling point is above\xa0room temperature. | |
| 3032. |
Why do gases have neither a fixed shape nor a fixed volume ?? |
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Answer» Because they have a lot of intermolecular space Because of the less intermolecular space btw them Gases have neither fixed shape nor fixed volume. This is because of the weak intermolecular foces of attraction in the gases. They take the shape and volume of the container in which they are placed. Because they have very less interpartical force because their particles have space between them and they are moving constantly |
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| 3033. |
dnnsnsjjsj |
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| 3034. |
What is Kepler\'s first law |
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Answer» hlo 1 Kepler\'s first law - sometimes referred to as the law of ellipses - explains that planets are orbiting the sun in a path described as an ellipse. ... The resulting shape will be an ellipse. An ellipse is a special curve in which the sum of the distances from every point on the curve to two other points is a constant. |
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| 3035. |
Last year question papers set2 solutions |
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| 3036. |
Properties of solid , liquid , gas |
| Answer» Properties of solids\tSolid has fixed volume.\tSolid has fixed shape.\tSolid has high density.\tSolids are heavy.\tSolid does not flow.Properties of liquid\tLiquid has definite volume.\tLiquid has no definite shape.\tLiquid gets the shape of container in which it is kept.\tLiquid cannot be compressed much.\tLiquid has less density compare to solid.\tLiquid is lighter than solid.\tLiquid flows and hence is called fluid.Properties of gas\tGas has indefinite shape\tGas has no fixed volume.\tGas gets the shape and volume of container.\tGas fills the container completely.\tGas has very low density.\tBecause of low density gas are light.\tGas can flow easily and hence are called fluid.\xa0 | |
| 3037. |
Differentiate between SOLUTION , SUSPENSION and COLLOIDS |
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Answer» Heyy.....YOGITA INGLE, also tell about the "Stability" | \t\t\t\xa0\xa0\xa0\xa0Size of the particles< 1nm1– 1000nm>1000nm\xa0\xa0\xa0\xa0NatureHomogeneousHeterogeneousHeterogeneous\xa0\xa0\xa0\xa0Filterability(Diffusion through parchment paper)Particles of true Solution diffuse rapidly through filter paper as well as parchment paper.Colloidal particles pass through filter paper but not through parchment paper.Suspension particles do not pass through filter paper and parchment paper.\xa0\xa0\xa0\xa0VisibilityParticles of True Solution are not visible to naked eye.Colloidal particles are not seen to naked eye but can be studied through ultra microscope.Suspension particles are big enough to be seen by naked eye.\xa0\xa0\xa0\xa0Tyndall effectTrue Solution does not show Tyndall effect.Colloids shows Tyndall effect.Suspension may or may not show Tyndall effect.\xa0\xa0\xa0\xa0AppearanceTransparentTranslucentOpaque\t Hello | |
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| 3038. |
Write down the characteristics or properties of a SOLUTION. |
| Answer» Different properties of solutions are as follows:\tIt is a homogeneous mixture.\tIts particles are too tiny and have a diameter less than 1 nm.\tThe particles are not visible to naked eyes.\tParticles don’t scatter a beam of light passing through it and hence the path of the light is not visible.\tSolutes are inseparable from the mixture and do not sediment. A solution is stable.\tThe components of a mixture cannot be separated using\xa0filtration. | |
| 3039. |
What is the function of epithelial tissues |
| Answer» Protection:\xa0As it covers the entire body surface, it is the first line of defence against any kind of mechanical injury, chemical exposure, excessive fluid loss and infections. Ciliary projections present in the nose or upper respiratory tract, trap the dust particles and prevent it from entering the bodyAbsorption:\xa0The epithelial lining of the digestive tract absorbs water and nutrientsExchange of substances:\xa0Epithelial tissue regulates the exchange of substances between body and external environment as well as the internal exchange between different parts of the body. Everything that enters the body or enters the bloodstream by absorption has to cross the epithelial barrierSensation:\xa0Sensory receptors are present in the epithelial tissue of the nose, eyes and ears, taste bud, etc. that help in transmitting signals from the external stimuli to the brainSecretion:\xa0Various glands made up of epithelial cells secrete hormones, enzymes, saliva, mucus, sweat, etc. | |
| 3040. |
What is centrifugation pls explain |
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Answer» Centrifugation is the process where a mixture is seperated through spinning . For example cream is sepereted from milk Centrifugation is the process that uses centrifugal force for the separation of two liquids in a mixture. In this process, the denser component of the mixture migrates away from the axis and the lighter component migrates towards the axis.Let us understand this process with the example of milk, as the tubes containing the milk are rotated, the heavier milk is pulled outward against the wall, whereas, the lighter cream is collected in the middle. Both the components are then collected separately. Centrifugation is the process where a mixture is seperated through spinning . For example cream is sepereted from milk |
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| 3041. |
Notes of biology 1st chapter |
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Answer» Hello Neha yes Hii R u from bharaph village From which village or town |
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| 3042. |
What is a homogeneous mixture ? |
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Answer» Homogenous mixture is the in which two or more mixture is known as homogenous mixture Mixtures which do not have uniform composition throughout are called Heterogeneous Mixture. For example – mixture of soil and sand, mixture of sulphur and iron fillings, mixture of oil and water etc. The boundaries of constituent particles of a homogeneous mixture can be identified easily; as a homogeneous mixture has two or more distinct phases. |
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| 3043. |
Which method used to squeeze water out of water machine |
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Answer» Centrifugation is a technique used in a washing machineto squeeze out water from wet clothes while drying. Centrifugation is a technique used in a washing machine to squeeze out water from wet clothes while drying. Centrifugation is a technique used in a washing machine to squeeze out water from wet clothes while drying. Which technique is used in a washing machine to squeeze out water from wet clothes while drying ?SOLUTIONCentrifugation is a technique used in a washing machine to squeeze out water from wet clothes while drying. |
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| 3044. |
How many moles of O2 are there in 1.20 × 10^22 oxygen molecules |
| Answer» (☞ ͡° ͜ʖ ͡°)☞ = We know from mole concept that :-\xa06.022\xa0×\xa010\xa023\xa0molecules = 1 mole1.2\xa0\u200b×\xa010\xa022\xa0molecules = 1×1.2\xa0×\xa010\xa022\xa0molecules/\u200b\xa06.022\xa0×\xa010\xa023\xa0molecules = 0.019 molesHence, 1.2\xa0\u200b×\xa010\xa022\xa0molecules of O2\xa0is equivalent to 0.019 moles. | |
| 3045. |
Anyone is not here so I am very sad and alone ☹️☹️☹️???????????? |
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Answer» Hi I love you jaan really ❤️?♥️???????❣️?????????????? Hey don\'t feel bad I\'m here jaan Hey |
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| 3046. |
What is unit of energy |
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Answer» Joule As kinetic energy is assume as to equal to work done so the unit is also equal to work done that is joule denoted as capital (J). It is joule(J) same as work Its joule Commercial unit of energy is kilowatt hour (kWh).The SI unit of energy is joule.1 kWh = 3.6x\xa0{tex} ${{10}^{6}}$J{/tex}(ii) Given, P = 2500 W, t = 4 hE = P/T = 2500/ 1000 x 4 = 10 kwH = 10 units. |
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| 3047. |
Defferent between maosis and mitosis |
| Answer» \tMitosisMeiosisIt is a type of cell division in which the daughter cells formed have exactly the same number of chromosomes as the parent cell.It is a type of cell division in which the number\xa0of\xa0chromosomes\xa0is reduced by half through the separation of homologous chromosomes in a diploid cellTwo daughter cells are formed at the end of mitosis.Four daughter cells are formed at the end of meiosis.\xa0The steps of mitosis are Interphase, Prophase, Metaphase, Anaphase, Telophase, and CytokinesisThe steps of meiosis are Interphase, Prophase I, Metaphase I, Anaphase I, Telophase I,\xa0Prophase II, Metaphase II, Anaphase II, Telophase IICrossing over does not occur\xa0Crossing over occurs\xa0\t | |
| 3048. |
Define Browian Movement? How it arises? |
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Answer» The collide particles are moving at random in a zig-zag in all direction is movment known as brownian movment “Brownian motion refers to the random movement displayed by small particles that are suspended in fluids. It is commonly referred to as Brownian movement”. This motion is a result of the collisions of the particles with other fast-moving particles in the fluid.Brownian motion is named after the\xa0Scottish Botanist Robert Brown, who first observed that pollen grains move in random directions when placed in water.\tThe\xa0size of the particles is inversely proportional to the speed of the motion, i.e. Small particles exhibit faster movements.\tThis is because the transfer of momentum is inversely proportional to the mass of the particles. Lighter particles obtain greater speeds from collisions.\tThe speed of the Brownian motion is inversely proportional to the\xa0viscosity of the fluid. The lower the viscosity of the fluid, the faster the Brownian movement.\tViscosity is a quantity that expresses the magnitude of the internal friction in a liquid. It is the measure of the fluid’s resistance to flow. |
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| 3049. |
What is Tissues? anyone give me answer. |
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Answer» tissue is a group of cell in similar structures and does common functions Lund A group of cell similar in structure and function is called tissue A tissue is defined as a cluster of cells which are similar in structure and work together to perform a particular function. A group of cells which are similar in function, structure and origin are called tissue. |
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| 3050. |
convert the following temperatures to the Celsius acale |
| Answer» I\'m giving you some examples that can help you to understand the question which u asked. ...........................................................Convert the following temperatures to the celsius scale. (a)\xa0293 K\xa0(b) 470 K. Answer : As we know 0° C =273.16 K. For convenience, we take 0° C = 273 K after rounding off the decimal. | |