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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.
| 6801. |
What is semepermeable membrene |
| Answer» Semipermeable membrene is permeable to some usually small molecules but not to other usually larger particles. | |
| 6802. |
Partical of matter |
| Answer» What to say | |
| 6803. |
Newton theory |
| Answer» \tNewton’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.\tThe 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.\tNewton’s Third Law of Motion states that the action and reaction forces act on two different bodies and never cancel each other. | |
| 6804. |
Why do not solid possess fluidity |
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Answer» Becoz there intermolecular force of attraction is very high. Solids do not possess fluidity because particles of solids are very rigid and don\'t have much spaces between them.That\'s the reason why solids do not possess fluidity. Because particles in solid are closely and rightly packed. |
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| 6805. |
Explain the working and application of a sonar |
| Answer» The acronym SONAR stands for Sound Navigation and Ranging.Sonar is a device that uses ultrasonic waves to measure the distance, direction and speed of underwater objects.Principle: It uses the phenomenon of echoes in determining the sea-depth and locating the presence of under-water objects.Working: i) Sonar consists of a transmitter and a detector and is installed in a boat or a ship.ii) The transmitter produces and transmits strong ultrasonic waves.iii) These waves travel through the water and after striking the object the beam is reflected from the seabed and is received by an under-water detector which is also mounted on the ship.iv) The detector converts the ultrasonic waves into electrical signals which are appropriately interpreted.v) The time interval between transmission and reception of the ultrasonic signal is noted.The SONAR method is also called echo ranging. This technique is used to determine the depth of the sea and to locate underwater hills, valleys, submarine, icebergs, sunken ship etc. | |
| 6806. |
Why does sugar disappear when we dissolve it in water |
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Answer» Sugar is soluble in water and forms a homogeneous mixture.\tWater is a liquid and has considerable amount of intermolecular space.\tWhen we dissolve salt/sugar in water, it occupies the space in between the molecules of water. Sugar disappears when dissolved in water because it occupies and settles in the space between the particles of water |
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| 6807. |
Define osmosis . |
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Answer» The process of flow of water from a higher concentration region to lower concentration region through a semi permeable membrane. *IF THERE IS NO SEMI PERMEABLE MEMBRANE WE WILL CALL IT DIFFUSION* Thanks The movement of water through selectively permeable membrane is known as osmosis |
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| 6808. |
What momentum |
| Answer» \tThe 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). | |
| 6809. |
Write examples of positive acceleration |
| Answer» Freely falling us a ex. Of positive acceleration | |
| 6810. |
What is a cell theory ? |
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Answer» In biology cell theory is the scientific theory, npw universaly accepted thatmall living organisms are made up of cells . That thry are basic structural unit of all organisms and that all cell come from pre existing cell. Later in 1838, Mathias Schleiden and Theodor Schwann put forward the cell theory of life.According to this theory:\tAll living organisms are made up of cells.\tNew cells arise from pre-existing cells.\tAll cells are similar in structure and function but are not identical.\tThe function of an organism depends on the way the cells work or the functions they perform. |
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| 6811. |
What is cell division? |
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Answer» Cell division happens when a parent cell divides into two or more cells called daughter cells. Cell division usually occurs as part of a larger cell cycle. All cells reproduce by splitting into two, where each parental cell gives rise to two daughter cells.There are two distinct types of cell division out of which the first one is vegetative division, wherein each daughter cell duplicates the parent cell called mitosis. The second one is meiosis, which divides into four haploid daughter cells. It is a division in which cell divide rapidly to form more and more cell and the died cell get killed in our body and get develop into new cell Fas sksjs |
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| 6812. |
Rubber is stretchable and also a solid .why? |
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Answer» Because his attraction power work slowly Because the intermolecular force of attraction in rubber is weaker than other solids . The particles of rubber not that much close as per the iron or steel |
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| 6813. |
How could you confirm that the color less liquid given to you in pure water |
| Answer» Boil the colorless liquid on stove. if that liquid boils at 1000C.Then it is a pure water. Because the boiling point of a pure water is 1000C.If the color less liquid boils at more than 1000C then it is a impure water. Because presence of impurities increase the boiling point of water.Other colorless liquid have different boiling points. | |
| 6814. |
When an velocity remains zero |
| Answer» During non uniform motion the distance varies also if the time interval is same. Thus,the velocity of the object during any time interval is not zero. | |
| 6815. |
1st chapter |
| Answer» Meter surrounding us | |
| 6816. |
Explain density |
| Answer» Mass per unit volume of a substance is called its density. It it a measure of how closely the particles of the substance are packed.Density = Mass/Volume | |
| 6817. |
Water at room temperature is a liquid. Why? |
| Answer» At room temperature (25°C), water is a liquid because it has the following characteristics of liquid:(i) At room temperature, water has no shape but has a fixed volume i.e., it occupies the shape of the container in which it is kept.(ii) At room temperature, water flows easily. | |
| 6818. |
Distinguish between true solution and colloid |
| Answer» \tTrue SolutionColloidsHomogeneous mixture\xa0of two or more substances.A colloid seems to be homogeneous. But actually it is a heterogeneous mixture.Particles of a solution\xa0are\xa0smaller than 1 nm\xa0in diameter. Hence\xa0they cannot be seen with the naked eye.The particles of a colloid are very small and cannot be seen with the naked eye.Ex: A true solution of common salt, sugar and alumEx: A colloidal of starch in water, egg albumin in water.\t | |
| 6819. |
A current of 200mA flows through 44kohm resistor. Find the P.D across the conductor. |
| Answer» | |
| 6820. |
chracteristics of sold,liquid,gas |
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Answer» ♣ SOLID :-\xa01) solid have a fixed shape and a fixed volume.2) solid cannot be compressed.3) solids have high density.4) force of attraction between the particles is very strong.5) The space between the particles of solids is negligible.♣ liquid ;-1) liquid have a fixed volume but no fixed shape.2) liquids can be compressed. large pressure is required to compress them.3) liquids have lesser densities than solids.4) intermolecular forces of attraction is weaker than solids.5) they have considerable space between the particles.♣ GAS :-1) gases have neither a fixed shape, nor a fixed volume.2) gases can be compressed easily.3) gases have the least density amoung the three.4) intermolecular forces of attraction is weakest.5) the space between the gas particles is large. 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 fluidProperties 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. Definitely shape definite volume of solid |
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| 6821. |
Structure and function of nucleus |
| Answer» Structure: Nucleus is a spherical body. It has a double layered covering called nuclear membrane. It is impermeable to large molecules. The nuclear membrane has pores which allow the transfer of material.Function: Nucleus is the controlling centre of the cell. It contains most of the cell\'s genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins. The genes within these chromosomes are the cell\'s nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression. | |
| 6822. |
Difference between plant cell and animal cell with a diagram |
| Answer» \tPlant cells Animal cellsPlant cells possess cell wall.Animal cells do not possess cell wall.Chloroplasts are present in plant cells.Animal cells do not possess chloroplasts.Plant cells are almost rectangular in shape.Animal cells are round in shape.Plant cells possess large vacuoles.Animal cells have many small vacuoles.Cilia rarely occur in plant cells.Cilia are present in animal cells.Higher plants do not possess centrioles.Animal cells do contain centrioles.\xa0Plant cells have no or less number of lysosomes.Animal cells possess\t | |
| 6823. |
What are the three equation of mation |
| Answer» Three equation of motion are1. V = u + at2. S = ut + 1/2 at23. 2as = v2 - u2whereu = initial velocityv = final velocitys = displacementa = accelerationt = time | |
| 6824. |
In the distance -time graph,Slope represents what ❓ |
| Answer» | |
| 6825. |
What is satellite |
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Answer» The thing which move around any planet this is a satellite of her planet Natural Satellites :The satellites there have existed\xa0in nature on their own are natural satellites. No efforts have been put to discover these satellites. For example Moon.Artificial Satellites : Artificial satellites are the objects that are intentionally\xa0placed by humans which\xa0orbits the earth for practical uses. These artificial satellites are built for various purposes.\xa0 |
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| 6826. |
Is matter continues? Say yes or no |
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Answer» Yes Matter is particulate and continues too...... Yes matter is continues |
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| 6827. |
What is BIC,fifth state of matter |
| Answer» Its BEC... Bose Einstein Condensate... Its the fifth state of matter... It is found in very less temperature.... | |
| 6828. |
Difference between vector quantity and velocity |
| Answer» | |
| 6829. |
How the compound is formed? |
| Answer» When two or more elements chemically combine in a fixed ratio by mass, the obtained product is known as a compound. Compounds can be defined as substances consisting of 2 or more different types of elements in a fixed ratio of its atoms. When the elements combine, some of the individual property of the elements is lost and the newly formed compound has new properties. | |
| 6830. |
How can we separate cream from milk |
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Answer» Milk 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. Centrifugation |
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| 6831. |
Comment on rigidity |
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| 6832. |
Is it smell is a matter? |
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Answer» The matter have no smell No |
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| 6833. |
Why the colour of sea/ocean water is blue?Think and answer.. |
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Answer» If it is because of reflection of sky so whats the reason behind the blue colour of sky???? It is due to the reflection of the sky..And colour if sky is blue..So, Sea /Ocean appear blue |
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| 6834. |
What is the relation of different units of temperature |
| Answer» Generally there are three type of temperature units\tKelvin (K)\tCelsius (C)\tFahrenheit(F)Mostly Kelvin and Celsius are used in thermal or i say physical science related calculations.Now, Let\'s Talk about relations\tKelvin & Celsius K=C+273\tCelsius & Fahrenheit F = 9/5(C) + 32 | |
| 6835. |
What is feed ?what are different type of feed ? How is it differ with respect to age and functions |
| Answer» The food eaten by animals is called feed. The animal feed is of two types:(i) Roughage – It largely contains fibres such as green fodder, silage, hay and legumes.(ii) Concentrates – It includes the mixture of substances which are rich in one or more nutrients. Concentrates are low in fibres and contains relatively high proteins and other nutrients. Example – oil seeds, cotton seeds, oats, barley, jowar, gram etc.\xa0Feed according to age and functions are:(i) Maintenance requirements – The food is required by the animal to support it to perform the basic functions of life.(ii) Milk producing requirements – It includes the type of food during lactation period. Maintenance part of the ration depends upon the body weight and age while milk production part is dependent upon the level and composition of milk. | |
| 6836. |
define cell wall write its function |
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Answer» The cell wall is the non-living and outermost covering of a cell consisting of cellulose and is permeable. It helps in separating the contents of the cell from the environment. It provides shape and protection to the cells and is\xa0present only in plant cells and absent in the animal cell.Cell Wall\xa0Functions\tThe plant cell wall\xa0provides definite shape, strength, rigidity, and protection against mechanical stress.\tHelps in\xa0controlling cell expansion.\tIt helps in preventing water loss from the cell.\tInvolved in\xa0transporting of substances between and across the cell.\tIt\xa0acts as a barrier between the cell interior and the outer environment. Outer layer on the plant cell is called cell wall.Its function is to provide rigidity and flexibility to plant cell |
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| 6837. |
define diffusion how doesthe gas like carbon dioxide or oxygen move in or out the cell |
| Answer» Diffusion is the movement of substances from a region of higher concentration to a region of lower concentration. When it happens through the cell membrane of the cell it is called diffusion. If more oxygen is or carbon dioxide is present outside the cell, it would move in the cell and vice versa | |
| 6838. |
What is meant by displacement |
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Answer» The length of the (Strait) shortest path between the initial and the final positions of a body is known as displacement. It is a vector quantity. Displacement can be 0, positive and negative The shortest path between initial and final position is known as displacement |
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| 6839. |
Can you name the two organelles which cpntain their own genetic material? |
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Answer» These are Mitocondria and Plastids Mitocondria and plastids |
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| 6840. |
What do you mean by division of labour and what are the importance of division of labour |
| Answer» The organisms which have this process are called multicellular organisms e.g. human being | |
| 6841. |
How to write periodic table easily for 50 times\xa0 |
| Answer» | |
| 6842. |
A racing car has a uniform acceleration of 4 m/s squar what distance will it cover 10s after start ? |
| Answer» | |
| 6843. |
What happens when copper sulphate mix with water |
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Answer» When pure copper sulphate is kept in water it starts to dissolve and in this process a small amount of heat energy is released due to hydration enthalpy released during the dissolution . It’s colour changes to blue colour because 5 molecules of water get attached to it . These molecules are referred as the water of crystallisation. Due to this it gets a peculiar blue colour . Due to this colour it is referred as “Blue Vitriol”. H2SO4 +h2o Cuso4+h2o |
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| 6844. |
Write the function of blood cell , smooth muscle cell, sperm,ovum ,bone cell, nerve cell,fat cell |
| Answer» Smooth muscle help us in relaxation of body | |
| 6845. |
Is it possible that an object performs two different motions at a time |
| Answer» Yes, it possible that an object performs two different motions at a time . For example moving of a wheel of a cycle and swing machine | |
| 6846. |
What is fermentation? |
| Answer» Fermentation is an anaerobic process which takes place in the absence of oxygen. It converts sugar substrates into alcohol and carbon dioxide. Fermentation process also releases certain amount of energyFermentation is the process which involves chemical changes in the organic substrate brought about by microbial enzymes.Commercially, fermentation s can be divided into four types.\tProduction of biomass\tProduction of extracellular metabolites\tProduction of intracellular components\tTransformation of substrate | |
| 6847. |
Answers of page no 37 |
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Answer» Subject konsa?? Answers of page no. 37 ch. 2 |
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| 6848. |
About motin |
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Answer» We often perceive an object to be in motion when its position change with time The most common example is blood flow through veins and arteries When an object Changes its position with respect to time . The body is said to be in motion |
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| 6849. |
Answers of page 25 |
| Answer» Of which subject | |
| 6850. |
Syllabus of 1preiodic |
| Answer» | |