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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.
| 8751. |
The numerical ratio of displacement to distance coveredis always |
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| 8752. |
Write any 3difference b/w evaporation and boiling |
| Answer» \tEvaporationBoilingEvaporation is a normal process that occurs when the liquid form changes into the gaseous form; while causing an increase in the pressure or temperature.Boiling is an unnatural process where the liquid gets heated up and vapourized due to continuous heating of the liquid.Evaporation usually occurs on the surface of the liquid being heated up.Boiling usually occurs on the entire mass of the liquid that gets heated up.Bubbling effect is not visible in Evaporation.Bubbling effect is visible during the process of Boiling.The process of Evaporation is usually a slow and carried out process when compared to Boiling.The process of Boiling is usually much quicker and the process happens quite rapidly as well.\t | |
| 8753. |
Why evoporation cause cooling |
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Answer» Working of force of attraction heat release During evaporation process the particles of liquid gain energy from their surroundings in order to overcome the force of attraction between them. This causes loss of heat energy in the surroundings that is why evaporation causes cooling. |
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| 8754. |
Mention the contributions of cell biologists in points |
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Answer» Ok thank u The three scientists that contributed to the development of cell theory are Matthias Schleiden, Theodor Schwann, and Rudolf Virchow. A component of the cell theory is that all living things are composed of one or more cells. A component of the cell theory is that the cell is the basic unit of life. |
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| 8755. |
Name the material that can be used to see the animal cells in the laboratory |
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Answer» Micro scope Microscope Microscope |
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| 8756. |
State two charecterisrics of matter demonstrated by_a) brownian motion andb) diffusion? |
| Answer» (a) Diffusion\xa0(i) All the matter is made up of tiny particles, such as atoms and molecules.(ii) The particles are moving or they are in motion.(b) Brownian motion\xa0(i) All the matter is made up of tiny particles, such as atoms and molecules.(ii) The particles are moving or they are in motion. | |
| 8757. |
Which process can purify the impure sample of potash alum? |
| Answer» \tThe potash alum dissolve the sample in distilled water and remove the insoluble impurities by filtration.\tThis solution is concentrated to the crystallisation point and cooled.\tColourless transparant crystals of potash alum separate. | |
| 8758. |
Give one example of the diffusion of a solid into another solid. |
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Answer» One more example is here if we write on black board with chalk and leave it for 15 20 days and after that we will not be able to erase the chalk easily means it has diffuses with board .Diffusion in solids are very very slow This is one of the example of diffusion in solids. It took lot of time because of strong forces of attraction between the particles of solids. Alloy of metals is an example of the diffusion of a solid in another solid. |
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| 8759. |
Describe, What happens to the particels when salt dissolves in water |
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Answer» Soluble in water When salt is mixed with water, the salt dissolves because the covalent bonds of water are stronger than the ionic bonds in the salt molecules. Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. |
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| 8760. |
Note on crystallization |
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Answer» Process to seprate solid. from crystral Crystallisation- Crystallization is a process that separates a pure solid in the form of its crystals from a solution. This method is used to purify solid, example the salt we get from sea water can have many impurities in it. To remove these impurities, the process of crystallization is used. Crystallization technique is better than simple evaporation technique as-• Some solids decompose or some, like sugar, may get charred during heating to dryness.• Some impurities may remain dissolved in the solution even after filtration. On evaporation these contaminate the solid. |
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| 8761. |
The si unit of temperature is |
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Answer» Kelvin K =C+273 The SI unit of temperature is Kelvin K=C+273 Kelvin Kelvin is the SI unit of temperatureIf we have to convert Celsius in Kelvin just add 273 in CelsiusFor ex: convert 15 C in K 15 + 273=288K The SI unit of temperature as per the International System of Units is Kelvin which is represented by the symbol K. The Kelvin scale is widely accepted or used in the field of science and engineering. However, in most parts of the world, Celsius or Fahrenheit scale is used for measuring temperature. |
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| 8762. |
What do you want to understand by latent heat of fusion and latent heat of vaporization |
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Answer» Latent heat of fussion convert solid to liquid at melting point. Latent heat of vapour . Liquid to vapour at boiling point •LATENT HEAT OF FUSION- the amount of heat energy required to change 1kg of solid into liquid under the given atmospheric pressure at it\'s melting point is called latent heat of fusion• LATENT HEAT OF VAPORIZATION- the amount of heat energy required to change 1 kg of liquid into gas at the given atmospheric pressure at it\'s boiling point is called latent heat of vaporization.\xa0 |
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| 8763. |
Diagram of nucleus with label |
| Answer» The nucleus is a large, centrally located spherical cellular component. It is bounded by two nuclear membranes, both forming a nuclear envelope. The nuclear envelope separates the nucleus from the cytoplasm. Within nucleoplasm two types of nuclear structures are embedded – the nucleolus and chromatin material. The nucleolus may be one or more in number and is not bounded by any membrane. It is rich in protein and RNA molecules and acts as the site for ribosome formation. | |
| 8764. |
How does the boiling point change with the impurities in the liqiud ? |
| Answer» When an\xa0impurity\xa0is added to substance,\xa0its Boiling point\xa0is elevated. Reason: The elevation[increase] in\xa0boiling point\xa0increases with the increases in concentration of the solute because on adding the solute, vapor pressure of solution becomes lower than pure solvent.\xa0Adding\xa0impurities\xa0to a solution, in most cases, increases the\xa0boiling point\xa0of the solution. This occurs because the presence of\xa0impurities\xa0decreases the number of water molecules available to become vaporized during\xa0boiling. | |
| 8765. |
Vacant space exist between particles translate in hindi |
| Answer» Inter molecular distance | |
| 8766. |
Chapter 1 and 2 question paper |
| Answer» Can i give just que | |
| 8767. |
In what condition is the distance covered equal to tje magnitude of the displacement of a particle. |
| Answer» The magnitude of the displacement is always less than or equal to the distance traveled. If two displacements in the same direction are added, then the magnitude of their sum will be equal to the distance traveled. | |
| 8768. |
A particle is moving with a uniform speed. Is it necessary that it is moving along a straight line? |
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Answer» Yes Yes because then if it doesn\'t move in a straight line then it\'s speed would not be uniform.Uniform speed means the object covers equal DISTANCE in an equal time intervals.It\'s not necessary that the object must travel in straight travel.\xa0For example:Let us consider an object moving in a uniform circular path.The object has uniform speed but at every point of journey it\'s direction changes which changes it\'s velocity and object motion will be accelerated. |
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| 8769. |
The slope of speeo time graph give |
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| 8770. |
What is a significant of good health |
| Answer» Health is the level of functional and metabolicefficiency of a living organism. In humans it is the ability of individuals or communities to adapt and self-manage when facing physical, mental, psychological and social changes with environment. The World Health Organization (WHO) defined health in its broader sense in its 1948 constitution as "a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity."This definition has been subject to controversy, in particular as lacking operational value, the ambiguity in developing cohesive health strategies, and because of the problem created by use of the word "complete". Other definitions have been proposed, among which a recent definition that correlates health and personal satisfaction. Classification systems such as the WHO Family of International Classifications, including the International Classification of Functioning, Disability and Health (ICF) and the International Classification of Diseases (ICD), are commonly used to define and measure the components of health.Important to establish to types of health; physical and mental health. Mental health refers to a persons psychological well-being and how they feel. Physical health has many different components such as physical activity, nutrition and diet and sleep/rest. Physical health can have a major impact on mental health and vice versa. | |
| 8771. |
Root hair absorbs water from soil througt |
| Answer» Plants\xa0absorb water\xa0from the\xa0soil\xa0by osmosis.\xa0Root hair\xa0cells are adapted for this by having a large surface area to speed up osmosis. Another adaptation that they have is\xa0root hair\xa0cells have a large permanent vacuole.\xa0Plants\xa0absorb water\xa0from the\xa0soil by\xa0osmosis. They\xa0absorb\xa0mineral ions\xa0by\xa0active transport, against the concentration gradient.\xa0Root hair\xa0cells are adapted for taking up\xa0water\xa0and mineral ions\xa0by\xa0having a large surface area\xa0to\xa0increase the rate of\xa0absorption. | |
| 8772. |
Why the temperature does not change when the ice heated |
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Answer» We know that phase changes occur when materials change state, going from liquid to solid (as when water freezes), solid to liquid (as when rocks melt into lava), liquid to gas (as when you boil water for tea), and so on. When the material in question changes to a new state — liquid, solid, or gas — some heat goes into or comes out of the process without changing the temperature. You can even have solids that turn directly into gas. As dry ice gets warmer, it turns into carbon dioxide gas. This process is called sublimation. Imagine you’re calmly drinking your lemonade at an outdoor garden party. You grab some ice to cool your lemonade, and the mixture in your glass is now half ice, half lemonade (which you can assume has the same specific heat as water), with a temperature of exactly 0 degrees Celsius. Why the temperature does not change when the ice was heated |
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| 8773. |
Whay is the role of SER in vertbeatrs |
| Answer» The SER appears smooth uner microscope due to absence of ribosomes. It also manufactures fat molecules or lipids that are important for proper functioning of cell and detoxyfies the poisons present in liver cells of vertebrates. | |
| 8774. |
How can I send picture to ask my question |
| Answer» Yes | |
| 8775. |
What happens when pressure is applied on gas |
| Answer» Pressure has no effect on solid and liquid whereas the volume of gas decrease with increase in pressure. This leads to the conversion of the gaseous state into a liquid state and eventually into a solid state.The volume of the gas decreases on applying pressure on gases because gases are compressible. | |
| 8776. |
On what bases are plant and animals put into different categories? |
| Answer» Plants and animals are put into different categories on the basis of Mode of nutrition. Plants are autotrophs, while animals are heterotrophs. Cell wall is present in plant cells, while it is absent in animal cells. Also, locomotion, absence of chloroplasts etc. make them different. Plants do not need to move from one place to another, while most of the animals need to move in search of food. | |
| 8777. |
Question of lesson 13 |
| Answer» Which question | |
| 8778. |
Explain why during summer season we feel cool and pleasant near water resources or in the garden |
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Answer» As in summers evaporation takes place in water bodies and vaporisation ,we feel cool Answer |
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| 8779. |
What is the difference between distance and displacement |
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Answer» Distance is the actual path followed by a body whereas displacement is the shortest distance. \tSl. No.Differentiating PropertyDistanceDisplacement1DefinitionThe complete length of the path between any two points is called distance.Displacement is the direct length between any two points when measured along the minimum path between them.2Denotationds3Direction ConsiderationTo calculate distance, direction is not considered.To calculate displacement, direction is taken into consideration.4QuantityDistance is a scalar quantity as it only depends upon the magnitude and not the direction.Displacement is a vector quantity as it depends upon both magnitude and direction.5Route InformationDistance gives the detailed route information that is followed while traveling from one point to another.As displacement refers to the shortest path, it does not give complete information of the route.6FormulaSpeed × TimeVelocity × Time\t |
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| 8780. |
Only question of lesson 13 of science |
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| 8781. |
Why solid are closely packed ? |
| Answer» Because of great force of attraction particles of solids are closely packed together. This makes the space between particles of solids almost negligible. The lowest kinetic energy of particles does not able to move the particles of solids. | |
| 8782. |
What is mass? Explain |
| Answer» In simple way mass=weight | |
| 8783. |
How to convert 293k to celsius scale |
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Answer» 20 degree Celsius =293-273=20°C 293-273=2020 degree c O concert Kelvin scale into Celsius scale we have to subtract 273 so293K = 293‐ 273 = 20 c o concert Kelvin scale into Celsius scale we have to subtract 273 so293K = 293 - 273 = 20 ºC, |
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| 8784. |
Difference between voluntary and involuntary action |
| Answer» Voluntary action - Actions which are controlled by "the Cerebrum (Fore brain)" are called voluntary actions. Theses actions are slow actions which can regulate by muscles of the body. ... Involuntary action - Actions that are controlled by "the Hind brain and the Spinal cord" are called Involuntary actions. | |
| 8785. |
Covert the following temperature to Celsius scale |
| Answer» Temperature in Kelvin = Temperature in °C + 273Substitute the given value in the equation and then calculate the other unknown value.a. 293 K = (293 – 273)= 20 °Cb. 470 K = (470 – 273)= 197 °C | |
| 8786. |
Five states of matter |
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Answer» Solid, liquid, gas, plasma, BEC Solid liquid gas plasma Solid, liquid, gas, plasma and bose-einstein condensate 5pleas Solid liquid gas |
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| 8787. |
A bus moving with a speed of 54km/h on applying brakes it stopped in 8 sec calculate acceleration |
| Answer» Initial Speed (u)= 54 km /hr = 54 *1000 m / 3600 s = 54*5/18 = 15 m/s ( 1km = 1000 m and 1hr = 60 mins = 60*60 seconds = 3600 seconds) Time = 8 seconds Final Velocity (V) = 0\xa0we know that , v = u + at 0 = 15 + a*8 0 = 15 + 8a a= -15/8 m/s² Therefore , acceleration is -15/8 m/s²\xa0 | |
| 8788. |
Write full from of DNA |
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Answer» Full form of DNA is deoxyribo nucleic acid) Deoxyribonucleic acid Thanks ? Deoxyribonucleic adic The Full form of DNA is Deoxyribonucleic acid. Deoxy means lack of an oxygen atom, Ribo means ribose sugar, Nucleic is found in the nucleus of cell and Acid contains negatively charged phosphate ion which is acidic. Deoxyribonucleic acids are hereditary material for human and most other living beings, I.e., they carry the genetic information for growth, development, functioning and reproduction of all known living organisms. |
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| 8789. |
What is the meaning of average velocity |
| Answer» The average velocity of an object is its total displacement divided by the total time taken. In other words, it is the rate at which an object changes its position from one place to another. Average velocity is a Vector quantity. The SI unit is meters per second. However, any distance unit per any time unit can be used when necessary, such as miles per hour (mph) or kilometer per hour (kmph). | |
| 8790. |
Are fruits also have a plasma membrane or cell wall |
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Answer» Yes ☺️☺️???? Yes?? Fruit softening during ripening involves a coordinated series of modi. cations to the polysaccharide components of the primary cell wall and middle lamella, resulting in a weakening of the structure. Degradation of polysaccharides and alterations in the bonding between polymers cause an increase in cell separation and a softening and swelling of the wall, which, combined with alterations in turgor, bring about fruit softening and textural changes. A wide range in the extent of cell wall pectic modi. cations has been observed between species, whereas the depolymerisation of xyloglucan is relatively limited and more consistent. The earliest events to be initiated are usually a loss of pectic galactan side chains and the depolymerisation of matrix glycans, which may begin before ripening, followed by a loss of pectic arabinan side chains and pectin solubilisation. The depolymerisation of pectins may begin during early to mid-ripening, but is usually most pronounced late in ripening. However, some of these events may be absent or occur at very low levels in some species. Cell wall swelling may be related to a loosening of the xyloglucan-cellulose network and to pectin solubilisation, and these processes combined with the loss of pectic side chains increase wall porosity. An increase in wall porosity later in ripening may allow increased access of degradative enzymes to their substrates. |
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| 8791. |
What are the function of stomata? |
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Answer» Transpiration To inhale and exhale gases( CO2 and O2)These gases are required in photosynthesis |
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| 8792. |
Why do we need to separate mixture\'s ? |
| Answer» A mixture is made up of two or more pure substances in which each substance or component retains its original properties. The main components present in some common mixtures are:\tA cup of tea is a mixture of water, sugar, milk and tea leaves extract.\tMilk is a mixture of cream in a watery liquid.\tSea-water is a mixture of water, common salt, and various other salts dissolved in it.The reasons for separating mixtures into their components:\tTo remove undesirable component.\tTo remove a harmful component.\t\xa0To obtain the pure sample of a substance.\tTo obtain a useful component. | |
| 8793. |
A body is set to be retarted if its valocity is |
| Answer» When body going\xa0vertically upwards, reaches at the highest point, then\xa0it is\xa0momentarily at rest and it then reverses\xa0its\xa0direction. At the highest point\xa0of\xa0motion,\xa0its velocity is\xa0zero but\xa0its\xa0acceleration is equal to acceleration\xa0due\xa0to gravity.\xa0There are three ways\xa0an object\xa0can\xa0accelerate: a change in velocity, a change in direction, or a change in both velocity and direction. | |
| 8794. |
What types of microorganisms |
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Answer» 5types 2 |
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| 8795. |
Tum sabka kitna syllabus Ho gya h??? |
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Answer» 4 chapters of science, s.s.t, maths, English and Hindi Thoda sa hi huya hai 1 chapter |
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| 8796. |
What is valency of an element |
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Answer» Valency of an element is the combining capcity of an element ( or radicals)For an example Sodium ( NA ) valency = 1 Its a positive radical Chloride ( CL ) valency = 1 Its a negative radicalThus, we known that to form a Chemical formula or Chemical Equation we have to combine the +ve radical and the -ve radical Now, we simply to known and understand this Sodium. Chloride NA. By. CL Cross Multplica- tion 1. 1 = NACL Valency means combining capicity of an element .Relationship between the number of valence electrons and valency:Valence electrons are the number of electrons present in the outermost shell of an atom.Valency is the combing capicity of an element to form bonds with the other elements.For Example:Let us take the case of Oxygen whose Atomic number is 8.Thus,its electronic configuration is 2,6.Oxygen has 6 electrons in its outermost shell and requires 2 more electrons to complete its octet state.So,here Oxygen has 6 valence electrons and 2 as its valency .The number of valence electrons increases from left to right in the periodic table.If the number of valence electrons of an element is equal to 4 as that of carbon,the the element would also have same valency that is 4. |
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| 8797. |
In which season zaid crops are growing |
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Answer» Zaids crops are grown in the Season of April -may during summer Ribosomes Where are proteins synthesised inside the cell \tZaid Cropping season - April- May\tZaid cropping season is during summer season in India.\tZaid crops are Water melons, Bitter gourds, Musk melons, Vegetables etc\tThe significance of Zaid season is that crops grown on irrigated lands as they are grown before monsoon arrival time. |
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| 8798. |
what. do you. understand. by the. motion of an object |
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Answer» When the object is move from one location to the other location with repesct to time then it is said to be in motion When an object moves it is defined as motion |
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| 8799. |
What is plasma therapy |
| Answer» For example we take corona is affected for someone and he was out of danger and he is discharged after sometime another fellow got corona and he was in critical stage the doctors call the fellow who was discharged from hospital to take his blood because in his blood already antibodies will be their so the doctors seperate the plasma from the blood and inject into the critical patient this is known as plasma therapy | |
| 8800. |
activity 8.9 answer for motion lesson |
| Answer» Hscus | |