InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 1401. |
1. A car travels a distance of 15 km in 20 minuteFind the speed of the car in (1) km h-', (ii) ms! |
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| 1402. |
Mole Conceptk. |
| Answer» <p>The mole is the unit of measurement in the International System of Units (SI) for amount of substance. 1 Mole is just a number whose value is equal to the Avagadro’s number i.e. 6.022 * 1023. So, when someone claims of a matter to be of 1 mole in quantity, that implies that the matter under consideration contains exactly 6.022 * 1023number of particles (atoms, molecules, ions, electrons or any other elementary entities).</p> | |
| 1403. |
hhat is tre vulatienship beteuten0)PotenbalnCA |
| Answer» <p>Potential difference = Current× resistance </p><p>=> V = i*(R)</p> | |
| 1404. |
Pege |
| Answer» <p>The twocorpora cavernosaand corpus spongiosum (also known as the corpus cavernosum urethrae in older texts and in the adjacent diagram) are three expandable erectile tissues along the length of the penis, which fill with blood during penile erection.</p> | |
| 1405. |
PAGE NO. :DATE: I1Low-does- |
| Answer» <p>Thedistinction between sex and genderdifferentiates a person'sbiological sex(the anatomy of an individual'sreproductive system, andsecondary sex characteristics) from that person'sgender, which can refer to either social roles based on the sex of the person (gender role) or personal identification of one's own gender based on an internal awareness (gender identity).[1][2]In this model, the idea of a "biological gender" is anoxymoron: the biological aspects are not gender-related, and the gender-related aspects are not biological. In some circumstances, an individual'sassigned sexand gender do not align, and the person may betransgender.[1]In other cases, an individual may have biologicalsex characteristicsthat complicate sex assignment, and the person may beintersex.</p> | |
| 1406. |
4. Why Mendel selected garden peafexperiments? Explain the characteof pea.Mendel selected the garden pea plarhis experiment. ExplainOR(MarORMention the advantages of selectilantfor experiments by Mendel. (7r |
| Answer» <p>Mendeltook advantage of this property to produce true-breedingpealines: he self-fertilized andselected peasfor many generations until he got lines that consistently made offspring identical to the parent (e.g., always short).Pea plantsare also easy to cross, or mate in a controlled way.</p> <p>mendel selected a garden pea because he saw the same pea dwarf and tall .The character of pea was round and the other was wrinkled</p> | |
| 1407. |
How is the sex of the child determined in human beings? |
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| 1408. |
a2b+ab2 |
| Answer» <p>a²b + ab²</p><p>= ab(a+b) </p> | |
| 1409. |
since they synthesise(a) Green plants are calledtheir own food. |
| Answer» <p>Green plants are called autotrophs.</p> | |
| 1410. |
classify the following in metal,non metal,metaloid - silicon, germanium, iodine,sodium,iron,carbon |
| Answer» <p>silicon is metalloidgermanium is metalloidiodine is non metalsodium is metaliron is metalcarbon is non metal</p> | |
| 1411. |
Chemical weathering is the fastest in |
| Answer» <p>Moisture speeds up chemical weathering. Weathering occurs fastest in hot, wet climates. It occurs very slowly in hot and dry climates. </p> | |
| 1412. |
Name some animal that gnaw |
| Answer» <p>Ans :- GnawingMammals - Rodents. This groupofmammals includestherat, mouse, squirrel, chipmunk, prairie dog, rabbit, hare and beaver. All exceptthehare and rabbit have two very large front teeth. These teethare extremely sharp and hard.</p> | |
| 1413. |
ifferentiate between cold and hot forging |
| Answer» <p>The maindifference between hotand cold forgingmay be summarized as follows: Thecold forging manufacturing process increases the strength of a metal through strain hardening at a room temperature. ... Finally, a manufacturer would choose one process over the other because of economic and not quality reasons.</p> | |
| 1414. |
#importance of* meaning of* Importance ofsoil.Natural ResourceNatural Resource. |
| Answer» <p>soil gives rise to crops, hence we get foodnatural resources are things which we get naturally</p> <p>soil give rise to crops ,hence we get food natural resources are thing which we get naturallly</p> <p>soil gives rises to crop ,hence we get food natural resource are things which we get naturally</p> <p>provide the medium for plant growth, habitat for many insects and other organisms, act as a filtration system for surface water, carbon store and maintenance of atmospheric gases. ...Soilsprovide air for gaseous exchange between roots and atmosphere.</p><p>materials or substances occurring in nature which can be exploited for economic gain are called natural resources.</p><p>any country. For example, to generate energy, one need fossil fuels; and for industrial development, we require mineralresources. ...Natural resourcesare getting scarce with the increasing population, so it is essential to conserve them.</p> <p>soil provide plants with essential mineral and nutrients. soil provide air for gaseous exchange betweenroots and atmosphere. soil protects plants from erosion. soil hold water and maintain adequate aeration. resources found in nature for our daily need are called natural resources. natural resource include but are limited to coal and oil the role natural resource on Earth is imperative indeed</p> <p>Soil promotes the growth of crops , trees , and plants .The importance of soil lies in it's fertility and the amount of crops it produces.</p> <p>in our life soil is very important for cultivating crops and for natural resources</p> <p>soil gives rise to crops, hence </p> <p>soil help to grow crops,the things that we get from the nature is called natural resources.</p> <p>resources drawn from nature are called natural resources and used without much modification...</p> <p>soils are important for growth of natural resourcesnatural resources are resources which get from nature.natural resources are very important because natural ressorce we get from nature and it is also called gift of nature.</p> <p>The soil is important to human and all living things on earth because it is the source of four essential ‘living’ factors, namely, food, clothes, shelter and medicine, all of which either directly or indirectly coming from the soil. For plants, the soil is very important to their growth and yield because for plants to be able to grow and bear flowers or fruits they rely on the soil as the base for their roots can adhere so that their trunks can stand strongly and firmly, not to fall down easily.</p> <p>soil is a key element in social world which helps to plants to prepare there own food ,plant rise in soil.it is the upper most layer of crust.natural resources are defined as the are available in nature itself like mines, forest etc.we can use this resources very sustainable manner for our future generations .if natural resources are exploited ,we have to face lot of problems in civil society.sustainable development is more important.</p> <p>Soilsprovide plants with essential minerals and nutrients.Soilsprovide air for gaseous exchange between roots and atmosphere.Soilsprotect plants from erosion and other destructive physical, biological and chemical activity.Soils hold water (moisture) and maintain adequate aeration.</p> <p>Importance(Functions) ofsoils</p><p>Soilsprovide plants with essential minerals and nutrients.Soilsprovide air for gaseous exchange between roots and atmosphere.Soilsprotect plants from erosion and other destructive physical, biological and chemical activity.Soilshold water (moisture) and maintain adequat</p> <p>the things which we get from nature is called natural resources</p> <p>1ans. soil is important becuse it contains many nutrients and Minerals which is important for the growth of the vegetation and it also serves as base for the natural vegetation and as well as agriculture</p><p>2 ans. natural resources are those resources which are connected by the nature to the living beings such as soil, water, air</p><p>3ans. </p> <p>Soil is usefull for crops it gives them growth. Natural resources are resources that we get from Natute. Natural resorces are useful as follows :1- we get all important resources like Gold, silver,etc from natural resources. </p> <p>Soilsprovide plants with essential minerals and nutrients.Soilsprovide air for gaseous exchange between roots and atmosphere.Soilsprotect plants from erosion and other destructive physical, biological and chemical activity.Soilshold water (moisture) and maintain adequate aeration.</p> <p>Importance of soil:✓Soil is important because it helps in growth of plants which is indirectly helping in other living being's survival✓Soil is also important because it is directly helping us in making bricks and constructing shelter for our selves and animalsDefination for natural resources:✓Natural resources are the resources available naturallyex:coal, petroleum etc.Importance of them:✓They work as a fuel for vehicles ✓They are used in fertilizers</p> <p>Importance of soil </p><p> Soil is important as many forms of life habitat is present in soil . And it is useful for human being in various purpose like agriculture, mining etc. </p><p>Resources which are obtained from nature are called natural resources </p> <p>Soil provides plants with foothold for their roots and holds the necessarynutrientsfor plants to grow; it filters the rainwater and regulates the discharge of excess rainwater, preventing flooding; it is capable of storing large amounts of organic carbon; it buffers against pollutants, thus protecting groundwater</p><p>materials or substances occurring in nature which can be exploited for economic gain.</p><p>Natural resourcesare essential to civilization as we know it, and are the basis for economy and survival.Resourcessuch as bauxite, iron, and copper form the basis of everyday items, while water, soil, and salt are required for life. It is humanity's duty to protect and conservenatural resources.</p> <p>soil is used for pottery, farming, making article's</p> <p>The resources that present in nature these are called natural resources</p> <p>Nowdays,the natural resources are available in very small amount therefore we can't destory the forest's ,as well we can't dig the well's for obtaining petroleum and energy minerals</p> <p>fill in the blanks given below:-</p><p>(a) Denser the medium blanks will will be the speed of a sound</p> <p>Soil gives rise to crop , Hence we get food from natural resources are things which we get naturally.</p> <p>denser the medium blanks will be the speed of a sound </p> <p>soil gives rise to crops, hence we get food natural resources are things which we get naturally </p> <p>soil give rice crops and food natural resorce are things which we get naturally </p> <p>soil gives Rises to crop hence we get food natural resources at things which we get naturally and also the salt promotes the growth of crops trees and plants the importance of soil lies in its fertility and the amount of crops and its produces</p> <p>1) Importance of soil.ans : soil is one of the most important resource in the world because everyone is directly or indirectly depends on it because we get food from plant (directly or indirectly) and plant depends on soil.This is only one factor , there are many factors.</p><p>2) Meaning of natural resources.ans : All the resources which we get from nature are known as natural resources.</p><p>3) Importance of natural resources.ans : Natural resources is very important because all the man made resources are made by using natural resources and everyone is depends on it.</p><p>Like👍 And follow.🤗🤗🤗</p> | |
| 1415. |
3-Which is the largest natural resource on the earth |
| Answer» <p>water is the largest resource on the earth.</p> | |
| 1416. |
In which or the orbit of He" ion, the angular momentum of the electron is2πfirst orbitb) second orbitc) third orbitd) fourth orbit |
| Answer» <p>The value of anglular momentum is nh/2π , where n is the orbital no. </p><p>so here the angular momentum is h/2π => nh/2π = h/2π so, n = 1 that is first orbital</p><p>option a) </p> <p>thanks</p> | |
| 1417. |
dlassnAtePagethe stotal wid |
| Answer» <p>Total number of turns = 60total width of all turns = 3diameter of wire = width of 1 turn = 3/60 = 0.05cm</p> | |
| 1418. |
1. (a)Choose the correct options from the following:(i) Cities are examples of natural/ manmade environment.(ii) The first life appeared on the earth more than 3100/35001x34600 million years ago |
| Answer» <p>Cities are examples of manmade environment</p> | |
| 1419. |
Level II (Conceptual)The mass of a pendulum bob is 100 g, anthe string is 1 m long. The bob is held so ththe string horizontal. It is then allowed to falFind the K.E. when the string makes an angof (a) 0"(b) 30° with the vertical(Ans. (a) 98 x 10% erg: (b) 84 x 104eOT " |
| Answer» <p>121ndhdodihispfusyaudifodofofodofofogogogogogpfpfofpfofusydewrqrwyduflckxidifofofofifidofofjcjckvjvncuwte</p> | |
| 1420. |
Name the brightest star |
| Answer» <p>The brightest star in the sky isSirius, also known as the “Dog Star” or, more officially, Alpha Canis Majoris, for its position in the constellation Canis Major.Siriusis a binary star dominated by a luminous main sequence star,Sirius A, with an apparent magnitude of -1.46</p> | |
| 1421. |
IV.1s an expensive fabric.V.Yarn is made fromEERSE |
| Answer» <p>iv)Vucana Wool Fabric</p><p>v) Yarn is made from many different fibers -- animal, plant and vegetable</p> | |
| 1422. |
(g) Mars.In which part of the sky can you find Venus if it is visible as an eventng star?. Name the largest planet of the solar system. |
| Answer» <p>Jupiter is the largest planet of the solar system.</p> <p>western sky we can see venus if it is visible as a evening star </p> <p>jupitar (brihaspati) is the largest planet of the solar system</p> | |
| 1423. |
5. Mark the following statements as true (T) or false (F).(a)(b)(c)(d)(e)(f)Pole star is a member of the solar system.Mercury is the smallest planet of the solar system.Uranus is the farthest planet in the solar system.INSAT is an artificial satellite.There are nine planets in the solar system.Constellation Orion can be seen only with a telescope. |
| Answer» <p>THE ANSWER IS IN SERIES OFFTFTFT</p> | |
| 1424. |
9 Why atmospheric nitrogen is heavier than chemical nitrogen ? |
| Answer» <p>atmospheric nitrogen is not mostly present in the native state.it contains 1% inert gases and impurities so is less reactive.chemical nitrogen is free of inert gases and impurities</p> | |
| 1425. |
13.10 Estimate the mean free path and collision frequency of a nitrogen molecule in acylinder containing nitrogen at 2.0 atm and temperature 17 °C. Take the radius dfanitrogen molecule to be roughly 1.0 A. Compare the collision time with the time bhemolecule moves freely between two successive collisions (Molecular mass28.0 u).ot |
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| 1426. |
When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas.What type of change is it? Explain. |
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| 1427. |
i. Given a bar magnet, describe the method you will use to magnetize an iron nail. |
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| 1428. |
Why do we use iron for making electromagnet and not steel? |
| Answer» <p>The soft iron inside the coil makes the magnetic field stronger because it becomes a magnet itself when the current is flowing. Soft iron is used because it loses its magnetism as soon as the current stops flowing. Soft iron is said to form a temporary magnet. In this way, the electromagnet can be switched on and off by turning the electricity on and off.</p> | |
| 1429. |
are coconut fibres used for making ropes ? Write another use of coconut fib |
| Answer» <p>Coir, or coconut fibre, is a natural fibre extracted from the husk of coconut and used in products such as floor mats, doormats, brushes and mattresses. Coir is the fibrous material found between the hard, internal shell and the outer coat of a coconut.</p> <p>please reply properly</p> | |
| 1430. |
ery Short Answer Type duestionsS1. What are the conditions for 'something' to be called 'matter ?for the motion of particl |
| Answer» <p>Matter is anything that is made of atoms and molecules which has mass and occupies space. Based on physical status it is classified into three types namely solids, liquids and gases.</p> | |
| 1431. |
n-1B-4. A bomb travelling in a parabolic path under the effect of gravity, explodes in mid air. The centre of massof fragments will(A) Move vertically upwards and then downwards(B) Move vertically downwards(C) Move in irregular path(D) Move in the parabolic path which the unexploded bomb would have travelled. |
| Answer» <p>d... is the answer </p> | |
| 1432. |
To clean their spectacles, people often breathe out on glasses to make them wet. Explain why the glasses become wet? |
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| 1433. |
s of opposite angles of a parallelogram are (3x-2)" and (50-p". Findthe measure of its each angle |
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| 1434. |
5. Which part of the silk is removed by placing cocoons in hot water! |
| Answer» <p>The sericin isremoved by placingthe cocoons in hot water, which frees the silkfilaments and readies them for reeling. This is known as the degumming process. The immersion inhot wateralso kills the silkworm pupa.</p> <p>Now the Cocoon is ready to manufacture Raw Silk. The glue holding the silk thread in the shape of a cocoon is dissolved in hot water (this procedure is to remove top waste layer) & to get single continuous thread from cocoon</p> | |
| 1435. |
our clothes do not protect us from insect bites |
| Answer» <p>To helpprevent bug bites, dermatologists recommend the following tips: Useinsectrepellent. To protect against mosquitoes, ticks and otherbugs, useinsectrepellent that contains 20 to 30 percent DEET on exposed skin and clothing. Always follow the instructions on the repellent and reapply as directed.</p> | |
| 1436. |
What useful things will we have to do withif rubber is no longer available?foto f1 |
| Answer» <p>Rubberis one of the mostimportantproducts to come out of the rainforest. ... Vulcanization, a refined version of this process, transformed the white sap from the bark of the Hevea tree into an essential product for the industrial age. With the invention of the automobile in the late 19th century, therubberboom began.</p> <p>The most important use of rubber is in vehicle tires; about half of all the world's rubber ends up wrapped around the wheels of cars, bicycles, and trucks! You'll find rubber in the hard, black vulcanized outsides of tires and (where they have them) in their inner tubes and liners.</p> <p>we have to search any subsituting material that would be so tough to get</p> <p>Here everyday uses of rubber. Top: A latex pencil eraser; Middle: the tough vulcanized rubber drive belt fromavacuum cleaner; Bottom: the waterproof rubber gasket that seals a washing machine door tight.The physical and chemical properties of a material dictate what we use it for.Even if you know absolutely nothing about the real-world uses of rubber, you can probably make some very good guesses. For example, everyone knows rubber is strong, stretchy, flexible (elastic), durable, and waterproof, so it's no surprise to find it used in things like waterproof clothes and wellington boots, sticking plasters, and adhesives.</p> | |
| 1437. |
the displacement of platorm i mass of AballupaA man of mass M hanging with a light rope which is connected with a balloon ofmass m. The system is at rest and equilibrium in air. When man nises a distance hwith respect to balloon Find(a) The distance raised by man(b) The distance descended by balloon |
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| 1438. |
How do forests help us |
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| 1439. |
2. Define resistivity. write its S I unit1) o |
| Answer» <p>The resistivity of a material is the resistance of a wire of that material of unit length and unit cross-sectional area. The unit for resistivity is the ohm-metre.The resistivity of a material depends on its nature and the temperature of the conductor, but not on its shape and size.A good conductor has less resistivity, whereas a bad conductor or insulator has high resistivity.The resistivity of semi-conductors lies between that of conductors and insulators. The resistivity of a metallic conductor increases with an increase in its temperature, whereas the resistivity of a semi-conductor decreases with an increase in its temperature.</p> | |
| 1440. |
How can we avoid accidents?Why should we follow trafficHow do traffic signs help us?Why should we cross the roa |
| Answer» <p>Top 8 Driving Tips toAvoid Accidents</p><p>Keep your eyes on the road. When you are driving, you should be doing just that and nothing else. ...</p><p>Never use your cell phone. ...</p><p>Don't change CD's. ...</p><p>Never, ever drink and drive. ...</p><p>Avoidconstruction areas. ...</p><p>Follow speed limits. ...</p><p>Follow the rules of the road. ...</p><p>Ignore aggressive drivers.</p> <p>Road signsare designed to make sure that every driver is kept safe. They help to create order on the roadways and are employed to provideessential information to drivers.Signswhich are taken out of specific places or not visible as a result of wear and tear can pose undesirable risks to drivers.</p> | |
| 1441. |
b) Why should we follow traffic rules? |
| Answer» <p>Every day people die on the roads due to reckless driving, speeding, etc and we blame the government for failing to provide good roads. But as responsible citizens, we can make the roads safer for all by simply following some basic traffic rules.PEOPLE HOLD the government responsible for all the problems in the society ranging from corruption to inflation, poor health system, deteriorating educational system, etc. We even blame the government for frequent road accidents. We always complain that the government has failed to provide good roads, the police is only interested in issuing challans and no safety measures are adopted by the government and the list goes on.</p><p>Agreed. The government is heartless, clueless about our problems but as responsible citizens what is our role? Don’t we give our children driving lesson at the age of 14? Don’t we wear helmet at the sight of a policeman? Don’t we fasten our safety belts at the sight of policemen? Don’t we jump the red light when there is no policemen? Don’t we take dangerous shortcuts to save fuel.</p><p>The list seem endless. For every 20,000 people there is one traffic policeman. Is it the duty of that one policeman to do everything and the rest 20,000 will do nothing but simply obey him, provided if he is there.</p> <p>what is this? this is not the answer </p> <p>fuxgb</p> | |
| 1442. |
ch3ch2oh reacts with pcc |
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| 1443. |
Exercise 13.2I.In the given figure, find the values of x and y.70°400 70 |
| Answer» <p> y = 180-70 =110 ... ( linear pair)</p><p>and 40+y = x .....( exterior angle property)so, x = 40+110= 150° </p> <p>x=150°;y=110°.😶😶😶😶😶😶😶😶😶😶😶😶😶😶😶😶😶😶😶😶😶</p> | |
| 1444. |
c. Sponge though compressible is a solid |
| Answer» <p>a sponge has minute holes in which air is trapped ,when we press it,the air is expelled out and we are able to compress it .</p> | |
| 1445. |
what is skeletal equation ??? |
| Answer» <p>are mostly used in chemistry. In a skeleton equation you put chemical formulas in place of chemical names. A skeleton equation doesn’t show the relative and balanced amounts of reactants and products. It’s regarded as a step to writing a complete chemical equation.Examples:Continuing with the electrolysis of water, we have a skeleton equation, "</p> | |
| 1446. |
structure of skeletal muscle |
| Answer» <p>A whole skeletal muscle is considered an organ of the muscular system. Each organ or muscle consists of skeletal muscle tissue, connective tissue, nerve tissue, and blood or vascular tissue.</p><p>Skeletal muscles vary considerably in size, shape, and arrangement of fibers. They range from extremely tiny strands such as the stapedium muscle of the middle ear to large masses such as the muscles of the thigh. Some skeletal muscles are broad in shape and some narrow. In some muscles the fibers are parallel to the long axis of the muscle; in some they converge to a narrow attachment; and in some they are oblique.</p><p>Each skeletal muscle fiber is a single cylindrical muscle cell. An individual skeletal muscle may be made up of hundreds, or even thousands, of muscle fibers bundled together and wrapped in a connective tissue covering. Each muscle is surrounded by a connective tissue sheath called the epimysium. Fascia, connective tissue outside the epimysium, surrounds and separates the muscles. Portions of the epimysium project inward to divide the muscle into compartments. Each compartment contains a bundle of muscle fibers. Each bundle of muscle fiber is called a fasciculus and is surrounded by a layer of connective tissue called the perimysium. Within the fasciculus, each individual muscle cell, called a muscle fiber, is surrounded by connective tissue called the endomysium.</p><p>Skeletal muscle cells (fibers), like other body cells, are soft and fragile. The connective tissue covering furnish support and protection for the delicate cells and allow them to withstand the forces of contraction. The coverings also provide pathways for the passage of blood vessels and nerves.</p><p>Commonly, the epimysium, perimysium, and endomysium extend beyond the fleshy part of the muscle, the belly or gaster, to form a thick ropelike tendon or a broad, flat sheet-like aponeurosis. The tendon and aponeurosis form indirect attachments from muscles to the periosteum of bones or to the connective tissue of other muscles. Typically a muscle spans a joint and is attached to bones by tendons at both ends. One of the bones remains relatively fixed or stable while the other end moves as a result of muscle contraction.</p><p>Skeletal muscles have an abundant supply of blood vessels and nerves. This is directly related to the primary function of skeletal muscle, contraction. Before a skeletal muscle fiber can contract, it has to receive an impulse from a nerve cell. Generally, an artery and at least one vein accompany each nerve that penetrates the epimysium of a skeletal muscle. Branches of the nerve and blood vessels follow the connective tissue components of the muscle of a nerve cell and with one or more minute blood vessels called capillaries.</p> | |
| 1447. |
Two coherent narrow slits emitting ofwavelength λ in the samephase are placed parallel to each other at a small separation of22. the sound is detected by moving a detector on the screen Sat a distance D (s> ) from the slit S, as shown in figure-6.31Find the distance r such that the intensity at P is equal to theintensity at OP TFigure 6.31 |
| Answer» <p>thnxx</p> | |
| 1448. |
2. Draw the circuit diagram to represent the circuit shown in Fig 14.21 |
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| 1449. |
4. How are clouds formed |
| Answer» <p>Clouds are formed by water vapour and dust particles present in the air</p> | |
| 1450. |
How are clouds formed? |
| Answer» | |