InterviewSolution
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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.
| 7001. |
What is Tangential??? |
| Answer» Tangetial mean passing | |
| 7002. |
Why gas are compressiable but not liquid |
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Answer» Because of their particle Because in gas there are air present on thi and it has small pores hole by wich air goes enter so it is compressible where as in water air don\'t enter on this so it is not compressible |
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| 7003. |
Why butter becomes sour when kept outside for long times in summer |
| Answer» Butter becomes sour if kept in summer for long time due to rancidity I.e spoilage of food\xa0Butter and oils will go rancid if exposed to light, heat or air. For this reason oil should be kept in a cool dark place( when in bottle ).\xa0As during summer there will be Hugh amount of heat , rancidity takes place and they become sour | |
| 7004. |
Why light and sound are not considered as matter |
| Answer» Because they do not have mass ,do not occupy space , do not offer resistence,do not felt by any sense organ | |
| 7005. |
Difference between parenchyma and collenchyma |
| Answer» Parenchyma tissue consists of relatively unspecialised cells with thin cell walls. They are live cells. They are usually loosely packed, so that large spaces between them. This tissue provides support to plants and also stores food. The cells of collenchyma tissue are living, elongated and irregularly thickened at the corners. There is very little or no intercellular space. It allows easy bending in various parts of a plant (leaf, stem) without breaking. Thus, provides flexibility to the plant. It also provides mechanical support to plants. | |
| 7006. |
Find any two diseases we inherited from you r parents and write a symptom |
| Answer» Aids | |
| 7007. |
What is dilute? |
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Answer» Patla Dilution\xa0is the process of reducing the concentration of a solute in solution, usually simply by mixing with more solvent.Example: You can add water to concentrated orange juice to\xa0dilute\xa0it until it reaches a concentration that is pleasant to drink. |
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| 7008. |
What is the statr of carbon dioxide when it is compressed by applying pressure ? |
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Answer» Carbon dioxide was taken in an enclosed cylinder and compressed by applying pressure(a) Which state of matter will we obtain after completion of the process(b) Name and define this process.(c) What is the common name of the product obtained in the above processAnswer:(a) Solid.(b) Sublimation : The process of conversion of solid directly into vapours or Vice-versa.(c) Dry ice Solid state |
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| 7009. |
Biography of newton |
| Answer» Sir Isaac Newton gave theory of force | |
| 7010. |
Science Chapter 8 |
| Answer» Motion occurs when an object changes its position with time.When a body covers equal distance in equal interval of time, it is moving with uniform motion.When a body covers unequal distance in equal interval of time. it is moving with non-uniform motion.Both Distance and Time are important in describing motion.Sometimes you know motion has occurred even if you didn’t see it happen.Relative motion: when two objects are moving in a plane (either in same direction or opposite) each have relative motion with respect to second. e.g. a person sitting in a train and watching a tree, in this case tree is stable but is assumed to be moving but with respect to train.Distance vs. DisplacementDistance: How far an object has moved. It has only magnitude without direction.Displacement: How far and in what direction an object has moved from its start position. i.e. the direct distance between intial and final points.SpeedSpeed = the distance an object travels in a given amount of timeSpeed=distancetimeSI unit of speed is m/sTypes of SpeedConstant speed: speed doesn’t changeChanging speed: Riding a bike for 5 km. Take off and increase speed, slow down up hill, speed up down hill, stop for stop sign. The trip took you 15 min (.25 h)Average speed = totaldistancetotaltimeInstantaneous speed: speed at any given time.VelocityVelocity: includes speed and direction.Storm is moving at 20km/hr.Suppose two trains are going with the same speed in opposite direction so they are having different velocities.Race car going around an oval track might have constant speed, but different velocities at each point.AccelerationAny change in velocity over a period of time is called acceleration.The sign (+ or -) of indicates its direction. + sign shows the acceleration and – sign shows de-acceleration.Uniform (constant) acceleration equationa = v/tImages of car are equally spaced.The car is moving with constant positive velocity (shown by red arrows maintaining the same size) .The acceleration equals to zeroImages of car become farther apart as time increasesVelocity and acceleration are in the same directionAcceleration is uniform (Arrows below the car maintain the same length)Velocity is increasing (Arrows above the car are getting longer)This shows positive acceleration and positive velocityThe instant speed at points of equal elevations is the same.The velocities are different because they are in opposite free fall & air resistance.Galileo Galilei Italian physicist and astronomer Formulated laws of motion for objects in free fallA freely falling object is any object moving freely under the influence of gravity alone.It does not depend upon the initial motion of the objectDropped – released from restThrown downwardThrown upwardThe acceleration of an object in free fall is directed downward, regardless of the initial motionThe magnitude of free fall acceleration (gravitational acceleration) is g = 9.80 m/s2g decreases with increasing altitudeg varies with latitude, height and depth from earth surface.9.80 m/s2is the average at the Earth’s surfaceThe italicized g will be used for the acceleration due to gravityNot to be confused with g for gramsWith negligible air resistance, falling objects can be considered freely falling. objects of different shapes accelerate differently (stone vs feather)Speed both upward and downwardThe path is symmetrical.Acceleration is constant.The magnitude of the velocities is the same at equal heights.Images become closer together as time increasesAcceleration and velocity are in opposite directions when ball goes upward.Acceleration is uniform (violet arrows maintain the same length)Velocity is decreasing in upward motion (red arrows are getting shorter)Positive velocity and negative accelerationVelocity becomes zero at maximum height.Time duration flight in going upward and coming back is always same.2 Graphical Representation Of Motion & Graphs3. Equation of motion(1) When object is moving in straight line-v=v0+atx=x0+v0t+1/2at2v2=v20+2a(Δx)Average acceleration describes how fast the velocity is changing with respecttime.aave=ΔvΔt=Δ(ΔxΔt)Δtwhere:= average accelerationΔv = change in velocityΔx = displacementΔt = elapsed time(2) when object is coming vertically downward-v=v0+gth=v0t+1/2gt2v2=v20+2ah(3) when object is coming vertically upward-v=v0+gtx=v0t+1/2gt2v2=v20−2ghThe SI unit of velocity is the m/s.Average acceleration is+ or – depending on direction.Instantaneous Accelerationa=t−→−lim0(ΔvΔt)Instantaneous acceleration is the limit of Δv/ΔtasΔtapproaches zeroInstantaneous acceleration is zero where slope is constantInstantaneous acceleration is positive where curve is concave upInstantaneous acceleration is negative where curve is concave downUniform Circular MotionIn this kind of motion the object moves on circle with fix speed but the direction changed by the time so the velocity of the change so its called acceleration motionacceleration is called centrifugal acceleration.It is directed toward the centre. | |
| 7011. |
Whh we are able to sip the hot tea or milk faster from a saucer rather than a cup |
| Answer» When the surface area increases from cup to saucer the rate of evaporation of heat increases. | |
| 7012. |
Why is cell called the structural abd functional unit of life |
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Answer» Because it can perform specific functions ,and in human body have different types of cell Because it performs various functions and is very important... Cell\xa0is\xa0called structural unit\xa0because body of all the organisms is made up of\xa0cells. It is\xa0functional unit of life\xa0because all the functions of body (physiological, biochemical. genetic and other functions) are carried out by\xa0cells. |
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| 7013. |
Why the force of attraction is more in solid ? Give 5 reasons. |
| Answer» The force of attractions is more in solud because:1- It is tightly packed2-it does not spaces between them3- It cannot bo compressed4- It has fixed shape5- It has fixed volumn | |
| 7014. |
Si unit of forse |
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Answer» Newton Forse not "force" Newton Newton (N) Si unit of force is newton(N)and si unit of pressure is pascal(pa) Pascal The newton (symbol: N) is the International System of Units (SI) derived\xa0unit of force. It is named after Isaac Newto |
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| 7015. |
How rate of evaporation depends on nature of liquid |
| Answer» Evaporation depends on upon the following factors:(i) Nature of the liquid.\xa0The evaporation depends on the strength of intermolecular forces. The liquids having low intermolecular forces evaporate faster in comparison to the liquids having high intermolecular forces. For example, ether evaporates more quickly than alcohol, and alcohol evaporates more quickly than water. This is because their intermolecular forces of attraction are in the orderEther < Alcohol < Water(ii) Surface area.\xa0Evaporation is a surface phenomenon. Larger the surface area, greater the opportunity of the molecules to escape. Thus, the rate of evaporation increases with an increase of surface area.A rate of evaporation ∝ Surface area(iii) Temperature.\xa0The rate of evaporation increases with\xa0the increase of temperature as the kinetic energy of the molecules increases with the rise in temperature.The rate of evaporation ∝ Temperature(iv) The flow of air current over the surface.\xa0The flow of air helps the molecules to go away from the surface of the liquid and therefore, increases the evaporation. | |
| 7016. |
Function of RNA |
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Answer» I need function not fullform RIBONUCLIC ACID |
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| 7017. |
What functions do pores present on the nucleus nuclear membrane function functions performs |
| Answer» Transport of ribosomes or other material from nucleus to cytoplasm | |
| 7018. |
Evaporation mean |
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Answer» Change of water droplets into water vapour YouTube any source of name Thr process of water change into vapour below its boiling point Evaporation means the changing of water ? into gas due to heating at atmospheric pressure. Changing of liquid into gas state |
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| 7019. |
Why is endocytosis found in animal only? |
| Answer» Endocytosis\xa0is not shown by plant cells because a rigid cell wall is\xa0present\xa0over the plasma membrane in them. Thus, this process is\xa0found in animals only. | |
| 7020. |
Define density and write its formula |
| Answer» The no of molecules present in unit area is called densityDensity=mass/volumeD=kg/m^3 | |
| 7021. |
225÷18 |
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Answer» 12.5 12.5 12.5 is answer |
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| 7022. |
Sun is at absolute rest?? |
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Answer» No, sun is not absolutely rest because it also rotates on its own axis. Hlow No because the milkyway galaxy too moves in the whole universe Anything in this world is not at absolute rest /couldn\'t be regarded as to be at absolute rest because an object may be regarded as at rest or to be in motion with reference to its immediate surroundings. For ex: the sun may be regarded as stationary with respect to earth/ us but with respect to the universe it is in motion & everytime its moving with it\'s milky way galaxy in this universe. Surroundings tend to make an object stationary or in motion. |
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| 7023. |
What is letant heat |
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Answer» No any change in temperatures occurs A quantity of heat which is required to break the cohesion. The temperature require to convert 1kg of ice in liquid without no any change in temperature It is true The heat required to convert a solid into a liquid or vapour , or a liquid into a vapour , without change of temperature this is called latent heat of fusion. |
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| 7024. |
What is mean by vacant spaces |
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Answer» Interparticle spaces Whete is only air The empty spaces between the particles |
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| 7025. |
Name the cells which have a-changing shape , B-A typical shape |
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Answer» Amoeba White Blood cell |
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| 7026. |
What is plasma ? How many functions are there |
| Answer» Plasma is 4th state of matter known to exist in very high temp. It is composed of free ions and electrons. Used in making neon sign bulbs. | |
| 7027. |
Can u explain speed and velocity |
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Answer» Speed: Distance travelled by the object in unit time. The SI unit of speed is metre per second. This is represented by the symbol m s–1 or m/s. Speed is a scalar quantity; it only has direction.Velocity: Velocity is the speed of an object moving in a definite direction. The SI unit of velocity is also metre per second. Velocity is a vector quantity; it has both magnitude and direction. Speed = distane travelled by an object /timeVelocity= displacement occured /time Velocity has direction whereas speed does not have direction .velocity is form of speed when speed gets specific direction ,it is then called velocity. |
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| 7028. |
Define different layers of atmosphere |
| Answer» Troposphere, stratosphere, mesosphere, thermosphere, exosphere | |
| 7029. |
What is difference between speedometer or strike rate(in cricket) |
| Answer» Strike rate is defined for the bowler as per the average number of balls bowled per wicket taken. Speedometer is defined for measuring of speed in km / HR, m/ sec, | |
| 7030. |
Define uniform and non uniform motion |
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Answer» If a body covers unequal distance in equal interval of time then its motion is said to be in non uniform motion. For eg a car moving on road in different hours. If a body covers equal distance in equal interval of time then the body is said to be in uniform motion. For eg hands of watches |
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| 7031. |
What happen when we put boiled egg in cold water |
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Answer» The unborn chick into the egg relax after half boiled?? As we know evaporation is cooling process the boiled egg will get cold in the water because water is behaving like evaporation . It will stop further cooking of egg |
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| 7032. |
Make a difference between velocity and speed |
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Answer» velocity is the speed with a direction, while speed does not have a direction. Speed is a scalar quantity—it is the magnitude of the velocity. M2 |
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| 7033. |
The particles of matter have larger gap. Explain with sutiable examples. |
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Answer» Robert hook in 1st time . Who discovered cell and how |
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| 7034. |
The particles of matter are so small? Explain with a suitable experiment. |
| Answer» The particles of matter are ver very small .i will suitable example 1,we take 2;3 small crystals of pottasium per magnet in water2and dissolves ,,100mililiters of water ina beaker ,3take 10ml of potassium permagnet from the 1st beaker and mix 90ml of water in 2nd ml of beaker sooo__what the 2nd beaker becomes bit light color | |
| 7035. |
Explain why the particles of matter are move continuously ? |
| Answer» The states that all of the particles that make up matter are constantly in motion. As a result, all particles in matter have kinetic energy. The kinetic theory of matter helps explain the different states of matter—solid, liquid, and gas. Within any group of particles, some are moving faster than others. | |
| 7036. |
Why the rate of diffusion is more in gases? |
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Answer» Diffusion is faster at higher temperatures because the gas molecules have greater kinetic energy. Effusion refers to the movement of gas particles through a small hole. Graham\'s Law states that the effusion rate of a gas is inversely proportional to the square root of the mass of its particles. Rate of diffusion is more in gases because particles of gas can move freely in any direction due to large intermoleculer spaces present between them. They also have very low intermoleculer binding force and thus, rate of diffusion is more in gases as compared to other states of matter. |
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| 7037. |
1.Draw and name picture of five single celled animal..? 2.Draw picture of single celled plant..? |
| Answer» | |
| 7038. |
why does a plant cell when placed in hypotonic solution not burst? |
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Answer» Cell wall When the plant cell is placed in a hypotonic solution , it takes up water by osmosis and starts to swell, but the cell wall prevents it from bursting. The plant cell is said to have become "turgid" i.e. swollen and hard. The pressure inside the cell rises until this internal pressure is equal to the pressure outside. |
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| 7039. |
Write in brief about the other states of matter1.Plasma state2. Bose Einstein Condensate |
| Answer» Plasma\t-plasma is a mixture of free electrons and ions. Plasma occurs naturally in stars. Inside the stars, the temperature is so high that the atoms break up. Some of the electrons break away from the atoms converting the rest of atoms into electrically charged particles called ions. This mixture of free electrons and ions in a star is called plasma. BEC- The bec is formed by cooling a gas of extremely low density, about one hundred thousandth the density of normal air, to super low temperature. At very low temperature BEC state exist | |
| 7040. |
What is physical quantity |
| Answer» Physical quantity is any physical property that can be quantified, that is, can be measured using numbers. Examples of physical quantities are mass, amount of substance, length, time, temperature, electric current, light intensity, force, velocity, density, and many others. | |
| 7041. |
Who first analyse lysosomes? |
| Answer» Christian de duve | |
| 7042. |
Who discovered fermentation and when |
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Answer» 1847 not 1856 1856 Louis Pasteur discovered fermentation. |
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| 7043. |
Who is the world\'s first person to say the civilization? |
| Answer» | |
| 7044. |
Defination of dry ice |
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Answer» Solid carbon dioxide Dry ice is the common name for the solid form of carbon dioxide. It \'s called dry ice because it doesn \'t melt into a wet liquid. Dry ice sublimates, which means it goes from its solid form directly to its gaseous form. |
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| 7045. |
All type of tissue with discribe,type ,location,function,structure |
| Answer» animal or plant tissue? | |
| 7046. |
Chapter tessue give discribe, type, structure, location, function of all type of cell |
| Answer» Yes | |
| 7047. |
Second equation of Newton\'s law example |
| Answer» Newton\'s 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 the force.\xa0ie., F = maWhere F is the force applied, m is the mass of the body, and a, the acceleration produced. | |
| 7048. |
Please make the reproductive organs of female |
| Answer» | |
| 7049. |
What\'s is tonoplast |
| Answer» Tonoplast is a semi-permeable membrane which surrounds the vacuole in plant cell. The main function of tonoplast is to protect the vacuole.\xa0 | |
| 7050. |
Drive the kinematics equations of motion by graphical method |
| Answer» | |