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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.
| 9001. |
From where tracheid transport water |
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Answer» It\'s ability to much higher surface to volume ratio. I don\'t know |
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| 9002. |
What is phloem full exolanation |
| Answer» Phloem, also called bast, tissues in plants that conduct foods made in\xa0the\xa0leaves to all other parts of\xa0the\xa0plant.\xa0Phloem\xa0is composed of various specialized cells called sieve tubes, companion cells,\xa0phloem\xa0fibres, and\xa0phloem\xa0parenchyma cells.\xa0Phloem\xa0is the vascular tissue responsible for the transport of sugars from source tissues (ex. photosynthetic leaf cells) to sink tissues (ex. non-photosynthetic root cells or developing flowers). Other molecules such as proteins and mRNAs are also transported throughout the plant via\xa0phloem.\xa0Phloem\xa0cells conduct food from leaves to rest of the plant. They are alive at maturity and tend to stain green (with the stain fast green).\xa0Phloem\xa0cells are usually\xa0located\xa0outside the xylem. The two most common cells in the\xa0phloem\xa0are the companion cells and sieve cells. | |
| 9003. |
What is formula for work done |
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Answer» Shivi, a student of class 9th, observed the following structure in the slide under the microscope. The given diagram is . Work done\xa0on an object is defined as the magnitude of the force multiplied by the distance moved by the object in the direction of the applied force. 1 Joule = 1 Newton × 1 metre. |
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| 9004. |
Why plasma membrane ia called selectively permeable membrane |
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Answer» The plasma membrane known as selectively permeable membrane because it lets only few selected particles inside the cell The cell membrane or plasma membrane is a biological membrane that separates the interior of the cell from the outside environment. The plasma membrane is called as selectively permeable membrane because it regulates the movement of substances in and out of the cell. It means that the plasma membrane allows some material to pass through it while at the same time it blocks other material from entering through it.\xa0 |
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| 9005. |
Ten difference between plants cell and animal cell |
| Answer» \tPlant CellAnimal CellLarge, with a distinct outline.Usually small, with a less distinct outline.Cell wall is present. The cell membrane is surrounded by the cell wall.Cell wall is absent.Plastids are present.Plastids are absent.A large vacuole is present in the centre.Vacuoles are absent; however, if present, they are small.Centrosome is absent.Centrosome is present.Cytoplasm is not so dense.Cytoplasm is denser and more granular and almost fills the entire cell.Golgi apparatus has smaller units called dictyosomes.Golgi apparatus is highly complex and prominent.\t | |
| 9006. |
What is अलगी |
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Answer» Pagal If you mean algae - it is a type of microorganisms. And if you mean ugly - dull, not beautiful. Ugly ( अगली ) Buri Suratwala , badsurat अगली means next What is Mass? |
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| 9007. |
Class 8th ncert cbse board chapter 2 ka pdf notes |
| Answer» | |
| 9008. |
What is physical state of water that a.25c b.0c c. 100c |
| Answer» A) at 25 degree Celsius water is starting to become boilingb) at 0°c water freezesc) at 100°c water starts. to vaporising .. | |
| 9009. |
Why does our plam feel cold when we put acetone or perfume on it? |
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Answer» Acetone, petrol, perfume etc., being volatile, evaporate very fast when exposed to larger surfaces. When we put some acetone or petrol or perfume on our palm, it evaporates. During evaporation, particles of the liquid absorb energy from the surface of the palm to compensate for the loss of energy, making the surroundings cool. Hence, our palm feels cold when we put some acetone or petrol or perfume on it. Because it loses energy in evaporation and it takes from our palm that\'s why we feel cold while applying acetone or perfume on our palm |
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| 9010. |
Kl |
| Answer» lK | |
| 9011. |
what is silicon |
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Answer» Silicon is a chemical element with the symbol Si and atomic number 14. It is a hard , brittle crystalline solid with a blue -grey mettalic lusture, and is a number of group 14 in the periodic table : carbon is above it; and germanium, tin and lead are below it Silicon is a chemical element with symbol Si and atomic number 14. |
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| 9012. |
How can you separate a mixture of salt and ammonium chloride. Show it with a labelled diagram |
| Answer» \xa0Ammonium chloride changes directly from solid gaseous on heating . So to separate\xa0mixtures containing a sublimable volatile component from a non-sublimable impurity i.e., sodium chloride, the sublimation process is used.\xa0• Place the china dish over a wire gauze placed over a tripod stand.\xa0• Cover the china dish with an inverted glass funnel and plug in a little cotton at the opening stem.\xa0• On heating the mixture, white fumes evolve.\xa0• Stop heating when the fumes stop rising and allow the funnel to cool.\xa0• On cooling, remove the funnel and transfer the solid ammonium chloride sticking on the walls of funnel to a watch glass.\xa0 | |
| 9013. |
Gaurav seth kya ham log ek aise device banaye jisse koi usa pahanta hi invisible ho jaye |
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Answer» Pahanta?? Inthis world anything is possibl Not possible |
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| 9014. |
What is the vector quantity |
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Answer» Vector quantity is velocity The physical quantity that has both direction as well as magnitude.Vector quantity examples are many, some of them are given below:\tLinear momentum\tAcceleration\tDisplacement\tMomentum\tAngular velocity\tForce\tElectric field\tPolarization A quantity that has magnitude and Direction is called vector quantity. A vector Quantity is a quantity of matter that has both magnitude and direction.Example. .... Vector is a measurment that refers to both the magnitude of theMedium as well as the direction of the movement the medium has taken. |
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| 9015. |
Why the force is vector quantity |
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Answer» Force is vector quantity because it actually does depend in which direction you apply the force .The force can be seen physically as a puch or pull. The physical quantity that has both direction as well as magnitude.Force is vector quantity because its has direction as well as magnitude. |
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| 9016. |
What is Retardation / deaceleration? |
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Answer» Negative acceleration is known as Retardation.example: (5m/s²) When the velocity decreases with respect to time it is termed as retardation or decelerationIn reality negative acceleration is commonly called retardation Its SI unit is m/s2 |
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| 9017. |
What is velocity? In 2 point..... |
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Answer» (I)Velocity means displacement/time.(ii) SI unit is velocity is m/s (meter per second)(iii)It is a vector quantity. \tVelocity: Velocity is the speed of an object moving in a definite direction.\tThe SI unit of velocity is also metre per second.\tVelocity is a vector quantity; it has both magnitude and direction. |
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| 9018. |
Why are sound waves called mechanical waves |
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Answer» The sound waves are called mechanical waves because they need a material medium( like solid, liquid or gas ) for their propagation. The sound wave involve the vibrations of the particles of the medium through which they travel . A sound wave is a disturbance that is transported through medium via the mechanism of a particle interaction a sound wave is called Mechanical wave |
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| 9019. |
What is speed? In 3 point... |
| Answer» \tSpeed: Distance travelled by the object in unit time.\tThe SI unit of speed is metre per second. This is represented by the symbol m s–1\xa0or m/s.\tSpeed is a scalar quantity; it only has direction. | |
| 9020. |
Kya hoga jab koyi bhi 100% mind use kar laga. Is anybody know what is happen? |
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Answer» He/she can change the world Dimag kaam karna band kar dega,?? |
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| 9021. |
What is the difference in the arrangement of particles in solid, liquid and gas ? |
| Answer» Solids have no intermolecular spaces, liquid has moderate intermolecular spaces and gases have large intermolecular spaces between them | |
| 9022. |
What is the meaning of chronicler |
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Answer» A person who writes accounts of important or historical events. \ta person who writes descriptions of historical events as they happen.\ta person who writes accounts of important or historical events.\t\xa0someone who writes chronicles. historian, historiographer - a person who is an authority on history and who studies it and writes about it |
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| 9023. |
Mention any two advantages of graphical representation of motion of an objects |
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Answer» Thanks a lot Gaurav seth Graphical Representation of motion has the following advantages:1. It makes it easy to represent and interpret data in an efficient way2. information can be compared in terms of graphical representation.Such a comparative analysis helps for quick understanding and attention.Let us look at some important graphs on motion/Displacement-Time GraphIn the displacement-time graph, the\xa0time\xa0is taken on X-axis and the displacement of body is taken on Y-axis. From this graph, we can determine the velocity of body. Since, velocity is the displacement per unit\xa0time therefore the slope of displacement-time graph gives the velocity.\xa0In the velocity-time graph, time is taken on X-axis and the velocity is taken on Y-axis. Since velocity is a vector quantity, the negative velocity means that\xa0the negative velocity means that the body is moving in opposite direction from that of the positive velocity whereas in positive velocity\xa0the body is moving in a certain direction away from its initial position\xa0In the acceleration - time graph, time is taken on X-axis and acceleration is taken on Y-axis. From this graph, we can find the change in the\xa0speed of a moving object\xa0in a certain interval of time.\xa0So, these are the various uses of graphs in representing the various equations and states of motion. This clearly explains\xa0the importance of graphical representation of motion. |
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| 9024. |
What do you mean by pennis? |
| Answer» A man\'s ***** is the part of his body that he uses when urinating and when having ***. | |
| 9025. |
Plant cell |
| Answer» NNJaka | |
| 9026. |
What is the difference between homogenous and heterogeneous mixtures |
| Answer» \tHomogeneous mixtureHeterogeneous mixtureIt has a uniform compositionIt has a non-uniform compositionIt has only one phaseThere are two or more phasesIt can’t be separated out physicallyIt can be separated out physically‘homo’ means the same‘hetero’ means differentExample:\xa0a mixture of alcohol and waterExample:\xa0a mixture of sodium chloride and sand\t | |
| 9027. |
What is social democractic party (SPD) and their main aim |
| Answer» The\xa0SPD\xa0government, committed to parliamentary\xa0liberal democracy, utilised military force against more radical communist groups, leading to a permanent split between the\xa0SPD\xa0and the USPD. The\xa0SPD\xa0was the\xa0largest party\xa0during the first 13 years of the new Weimar Republic.\xa0Social democracy\xa0argues that all citizens should be legally entitled to certain\xa0social\xa0rights. These are made up of universal access to public services such as education, health care, workers\' compensation and other services including child care and care for the elderly. | |
| 9028. |
Wilting of tree is an example of which solution |
| Answer» | |
| 9029. |
What is the camel work |
| Answer» All animals were working for humans on Monday. But there was as an animal “camel” who was living alone in the desert and was not doing any work. It was for three days, and the camel did not even start his work. Seeing this, the horse with a saddle on its back came to the camel and said, “O camel, O camel come out and trot like us. (The way horses walk is called trot). Camel was a lazy person, he replied “Humph”. | |
| 9030. |
A fan is in off posution , what kind of energy does it consist |
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Answer» Rest energy Rest energy |
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| 9031. |
How many matter |
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Answer» There are 6 types matter solid liquid gas plasma BEC fermionic condensate There are main three states and two more There are three states of matter - solid,liquid and gas Two more states PlasmaBose intenstin There are three states of matter – solid, liquid and gas.Solid:\xa0Matters which have fixed volume and shape are called solids. For example - stone, wood, brick, ice, sugar, salt, coal, etc. All metals are solid except mercury and gallium.Liquid:\xa0Matters which have fixed volume but indefinite shape are called liquids. For example - milk, water, petrol, kerosene, alcohol, oil, etc. Since liquid can flow, it is also called fluid.Gas:\xa0Matters which have indefinite shape and volume are called gases. For example - air, oxygen, hydrogen, nitrogen, carbon-dioxide, etc. |
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| 9032. |
What is *** , and how the the men and woman do the *** and reproduce the child |
| Answer» *** ? | |
| 9033. |
What is epidermis , cork , Sclerenchyma and lateral meristem (define) |
| Answer» The epidermis is a thin outer layer of the skin that is visible to eye and work to provide protection to the body. Cork is an impermeable buoyant material , the phellem layer of bark tissue that is harvested for commercial purposes .Sclerenchyma is a strengthening tissue in the plant , formed from cells with thickened typically lignified , walls. | |
| 9034. |
How can matter classified? Give the names of classification. |
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Answer» It is classified into three types solid liquid and gas they are classified on the basics of their intermoleucal space their shape and their volume Anything which has mass and occupies space is called\xa0matter. for example, book, pen, pencil, water, air, all living beings etc. are composed of matter.matter can exist in three physical states\xa0viz.\xa0solid,\xa0liquid\xa0and\xa0gas.Solid :\xa0Solids have\xa0definite volume\xa0and\xa0definite shape.Liquid:\xa0Liquids have\xa0definite volume\xa0but\xa0not\xa0the\xa0definite shape. They take the shape of the container in which they are placed.Gas:Gases have\xa0neither definite volume nor definite shape. They completely occupy the container in which they are placed. |
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| 9035. |
Where are protein synthesised inside the cell? |
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Answer» Ribosomes (which are attached to the surface of Rough Endoplasmic Reticulum) are the sites of protein manufacture inside the cell Proteins are produced in RER (Rough Endoplasmic Reticulum). Proteins are produced in the RER by the ribosomes attached to it.Ribosomes are produced in cytoplasm and mitochondria’s chloroplast. RNA present in ribosomes plays a significant role in the synthesis of proteins. This synthesis is called translation as the protein compound is formed from amino acid and the amino acid structure is decoded from genes. RNA present in the ribosomes play a significant role in synthesesing protein. |
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| 9036. |
How does an amoeba brains it\'s food |
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Answer» They obtain their food by phagocytosis .A large structure known as perdopod (a temporary extension of the cytoplasm) surrounds and capture the prey in a tiny drop of water . An opening in the cell membrane allows the water and food droplets inside where it is enclosed in a food vacuole They obtain their food by phagocytosis process.It reach to food particle by pseudopodia. Batao jaldi |
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| 9037. |
What are vascular tissue |
| Answer» \tThe complex tissue consists of more than one type of cell having a common origin. All these cells coordinate to perform a common function.\tComplex tissues are of two types: Xylem or wood and phloem or bast.\tXylem and phloem are both conducting tissues and also known as vascular tissues; together both them constitute vascular bundles. | |
| 9038. |
Brief info on plant tissue... And it\'s types also..... |
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Answer» Thanks A tissue is a cluster of cells, that are alike in configuration and work together to attain a specific function. Different types of plant tissues include permanent and meristematic tissues.\xa0Meristematic tissue:These tissues have the capability to develop by swift division. They assist in the major growth of the vegetation. Growth in length and growth in diameter of the plant are carried about by these cells. The Meristematic cells are cubical, living cells with a big nucleus. These cells are meticulously crammed with no intercellular spaces. Depending on the section where the meristematic tissues are existing, they are categorized as meristems intercalary, lateral and apical.\tApical meristem\xa0is existent at the growing tips or apical of stems and roots. Apical meristem upsurges the length of the plant.\tLateral meristem\xa0is existent in the radial portion of the stem or root. Lateral meristem upsurges the thickness of the plant.\tIntercalary meristem\xa0is found at the internodes or at the base of the leaves. Intercalary meristem upsurges the size of the internode.Old meristematic cells lose the capability to distribute and convert into permanent tissues. This procedure of capturing up a permanent function, size, and shape is termed as differentiation.Permanent tissues:Those cells which have lost their ability to distribute but are specialised to offer elasticity, flexibility and strength to the plant. These tissues can be additionally categorised into:\tSimple Permanent Tissue: They can be classified into sclerenchyma, collenchyma and parenchyma based on their purpose.\tComplex Permanent Tissue: These tissues include of phloem and xylem. Xylem is valuable for the transportation of water and solvable constituents. Xylem is made up of xylem parenchyma, fibres, vessels and tracheids. Phloem is valuable in the transportation of food particles. Phloem consists of phloem parenchyma, phloem fibres, companion cells, sieve cells and sieve tubes. Maristematic tissue |
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| 9039. |
Chapter 1mattter in our surroundings explanation for acceleration |
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Answer» Acceleration is vector quantity . it is rate of change of velocity The rate of change of velocity with respect to time.Acceleration is a\xa0vector quantity\xa0as it has both magnitude as well as direction. It is also the second derivative of position with respect to time or it is a first derivative of velocity with respect to time. |
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| 9040. |
What is reverberation and how can it reduces? |
| Answer» The waves suffer multiple reflections from the walls, ceilings and other materials present, when a sound is produced in a big hall or auditorium. As a result of this, sound persists for some time even after the source has stopped producing sound.Revertebration is the process of persistence of sound due to repeated reflection.\xa0Methods of reducing reverberation.In a big hall or auditorium, excessive reverberation is highly undesirable. The following below methods can be used to reduce them.(i) By covering the walls and roof of the auditorium with sound absorbent materials like compressed fireboard, rough plaster, etc.(ii)\xa0Providing open windows in the space.(iii)\xa0Providing heavy curtains with folds, so that the sound gets absorbed.\xa0(iv)\xa0By using good sound absorbing materials for the seats. | |
| 9041. |
What is blue vitriol? |
| Answer» A\xa0blue, crystalline compound of copper sulfate.\xa0Blue vitriol\xa0is soluble in water, and is a very important industrial salt of copper. It is used in insecticides and germicides, in electrolytes for batteries, and in electroplating baths.\xa0Chemical\xa0formula: CuSO4·5H2O. | |
| 9042. |
Define CELL in brief |
| Answer» Cells are made up of components called cell organelles.A cell is capable to live and perform all their respective functions due to the presence of cell organelles.All cells have the same organelles irrespective of their function and organism they are found in i.e. let it be a bone cell or a nerve cell or any other cell, all will have components. | |
| 9043. |
Name the layers of sun like the Earth has crust mantle core. |
| Answer» Layers of the Sun\tSolar interior composed of core (which occupies the innermost quarter or so of the radius),\tThe radiative zone,\tThe convective zone,\tThere is the visible surface known as the photosphere,\tThe chromosphere,\tThe outermost layer, the corona. | |
| 9044. |
The direction of force |
| Answer» Direction of force means that the force acts in the same direction in which the force is applied and force is also a vector quantity The SI unit of force is newton (N)The\xa0direction\xa0of an arrow\xa0shows the direction\xa0of the\xa0force, and the length of the arrow indicates the amount, or size, of the\xa0force. | |
| 9045. |
Types of inertia |
| Answer» Following are the three types of inertia:Inertia of Rest:\xa0When the resistance is offered by the body to continue in the state of rest unless an external force acts on it.Inertia of Direction:\xa0When the resistance is offered by the body to continue the motion in the same direction unless an external force acts on it.Inertia of Motion:\xa0When the resistance is offered by the body to continue to be in the uniform motion unless an external force acts on it. | |
| 9046. |
Explain mitosis and meiosis in detail. |
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Answer» Cells divide and reproduce in two ways: mitosis and meiosis. Mitosis is a process of cell division that results in two genetically identical daughter cells developing from a single parent cell. Meiosis, on the other hand, is the division of a germ cell involving two fissions of the nucleus and giving rise to four gametes, or *** cells, each possessing half the number of chromosomes of the original cell.Mitosis is used by single-celled organisms to reproduce; it is also used for the organic growth of tissues, fibers, and membranes. Meiosis is found in sexual reproduction of organisms. The male and female *** cells (i.e., egg and sperm) are the end result of meiosis; they combine to create new, genetically different offspring. Meiosis is a type of cell division that results in the formation of four daughter cells each with half the number of chromosomes as the parent cell.Mitosis is the type of cell division that results in the formation of two daughter cells each with the same number of chromosomes as the parent cell. |
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| 9047. |
Name the approaches generally adopted to treat infectious diseases |
| Answer» There are two principles for treatment of infectious diseases:Reducing the effect of a disease:\xa0In this method, the side-effects or symptoms of a disease are reduced, which are usually because of inflammation. This includes taking medicines to bring down fever, reduce pain etc. One can take rest to save energy so that the body can focus on healing. However, this kind of treatment does not cure a disease as it does not kill the micro-organism that causes the disease.Killing the cause of a disease:\xa0It includes taking microbe-specific medicines. Microbes are classified into virus, bacteria, fungus, protozoa etc. Each group of these microbes have some essential biochemical process which is specific to its group and is not shared by any other group of microbes. Hence, medicines which are specific for that group are prescribed. | |
| 9048. |
Latitude and longitude of India |
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Answer» Latitude=20.5937degree N Longitude=78.9629 degree N Latitude = 20.5937°NLongitude = 78.9629°N |
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| 9049. |
Organs |
| Answer» Organs are the body\'s recognisable structure that performs specific functions. They are formed by groups of tissues that are made of group of cells. | |
| 9050. |
Calculate the amount of water required to prepare 500 gramof 2.5% sugar gram |
| Answer» The amount of water required prepare 500 g of 2.5% solution of sugar is 487.5 gExplanation:Mass percent : It is defined as the mass of the given component present in the total mass of the compound.Formula used :Mass of solution = 500 gMass of sugar = ?\xa0Mass of sugar = 12.5 gThus mass of water = mass of solution - mass of sugar = (500 - 12.5) g = 487.5 g | |