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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.
| 701. |
endothermic reaction |
| Answer» <p>Anexothermic reactionis a chemicalreactionthat releases energy by light or heat. It is the opposite of anendothermic reaction. Expressed in a chemical equation: reactants → products + energy.</p> <p>Reaction that required energy in order to proceed our endothermic reaction</p> | |
| 702. |
Cadets are marching in a parade. There are 5 cadets in a row. What is the rule which gives the number of cadets, given the number of rows? (Use n for thenumber of rows.) |
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| 703. |
ind the focal length of a convex mirror whose radius of curvature is2 cmconcave mirror produces three times magnified (enlarged) real imagean object placed at 10 cm in front of it. Where is the image located? |
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| 704. |
Q U E S T I O N SFind the focal length of a convex mirror whose radius of curvature is32 cmA concave mirror produces three times magnified (enlarged) real imageof an object placed at 10 em in front of it. Where is the image located?2 |
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| 705. |
Q U E S T I O N SFind the focal length of a convex mirror whose radius of curvature is32 cm.2.A concave mirror produces three times magnified (enlarged) real imageof an object placed at 10 cm in front of it. Where is the image located?Sweet |
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| 706. |
What kind of lens would form-(a) an inverted and magnified image of the object?(b) an erect and magnified image of the object?(c) an inverted and diminished image of the object(d) an erect and diminished image of the object?5. |
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| 707. |
Name any three non-living things in your classroom? |
| Answer» <p>Black boardBenchesPen and pencils</p> | |
| 708. |
write three things that you do for parents |
| Answer» <p>Help my mom in kitchen. Help my father in cleaning car.Help my mother in cleaning home. </p> | |
| 709. |
Why does an object float or sink whenplaced on the surface of water? |
| Answer» | |
| 710. |
1 Why does an abject ffoat ar sink when giacast am the suace oi wat |
| Answer» <p>Objectswith tightly packed molecules are denser andsink.Objectswith more loosely packed molecules are less dense andfloat. Whether anobject sinks or floatsdepends on its density. ... Others have molecules that are packed more loosely. This is density.</p> | |
| 711. |
Identify the input device(a) Printer(b) Mouse(c) Plot |
| Answer» <p>This question seems quite easy.An input device is one which we use to give inputSome input devices are mouse, keyboard, joystick, track pad, mike</p> <p>a computer mouse is a hand held pointing device that detects 2 dimensional motion relative to a surface </p> <p>answer of this question ismouse</p> | |
| 712. |
Q U E S T I O N Si.Deline the principal locus of a concave mirmor |
| Answer» <p>Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror. This point is known as the principal focus of the concave mirror.</p> | |
| 713. |
4.State the characteristics of the image formed by a plane mirmor.linh ninhohrt orany other language known to |
| Answer» <p>The characteristics of an image formed in a plane mirror:</p><p>image formed is virtual ie image cannot be projected or focused on a screen</p><p>the distance of the image ‘behind’ the mirror is the same as the distance of the object in front of the mirror</p><p>the size of the image formed is the same as the size of the object</p><p>the image is laterally inverted ie left-right reversal of the orientation of the image, not top-down vertical reversal eg PHYSICS becomes SCISYHP</p><p>altitude/orientation is always upright.</p> | |
| 714. |
b] Can the separation of chalk in water -Give reasons. |
| Answer» <p>Yes you can seperate Chalk and water. To do so use the filtration method. As Chalk and water is an unsolvable mixture, you can seperate it by filtering the suspension through filter paper. just pour the mixture of insoluble solid and liquid into a beaker through filter paper.</p> | |
| 715. |
- 3 Weite any four uses of water? |
| Answer» <p>to washing the clothes for bathing for drinking and also help to washing our hands also</p> <p>uses of water are-to drink to wash the dishes to wash clothes for moping the floor </p> <p>DrinkingBathingWash utensils or clothesplanting the plant</p> <p>uses are water</p><p>to drinkto wash the dishesto wash clothes for moping the floor</p> <p>To drink , to bath, to make food, to wash clothes </p> <p>For cleaning external body. For cooking food. As it is very important for drinking. For cleaning floors </p> <p>To wash clothesTo drink waterWash our handsTo bath</p> <p>for drinkingfor planting treefor bathingfor grains</p> <p>washing clothesbathingcooking</p> <p>and drinking ..........</p> <p>bathing drinking watering plants washing</p> <p>for bathing drinkingwashingplanting</p> <p>the correct use of water is in drinkingin cookingin bathingin planting trees plants</p> <p>we use water to drinking, bathing, washing clothes and planting a plant</p> <p>The daily uses include drinking, cooking, bathing, washing clothes etc.</p> <p>drinking, washing, is correct answer </p> <p>to wash clothesfor agriculture use to wash handto drink</p> <p>1. To drink 2. For washing clothes,vehicles,etc3. Water helps in digestion of food4. It helps in maintaining body temprature</p> <p>punya sathi . rangoli sathi. jivan asato. svachhatisathi </p> <p>1for drinking water 2for bathing 3for washing clothes 4for cleaning</p> <p>to drink to bath to wash utensil or clothsto cook food</p> <p>four uses of water are.1. we can use water for bathing.2we can use water for washing clothes and floor .3.we can use water for drinking.4.wr can use water in agriculture field.</p> <p>drinking washing clothes cooking bathing</p> <p>1)it is regulates the temperature of the body2) it is used in washing clothes 3) it is used for making cook food in kitchen4) it helps in excreting body waste </p> <p>for bathing for washing our hands for drinking water to plant trees </p> <p>some of the mostimportant usesforwaterare at our homes. Domesticwateruse iswaterused for indoor and outdoor household purposes— all the things you do at home: drinking, preparing food, bathing, washing clothes and dishes, brushing your teeth, watering the yard and garden, and even washing the dog.</p> <p>1 is we can drink it and it maintain our body 2 wash clothes 3 wash kichan instruments 4 for agriculture uses</p> <p>uses of water areto wash the clothesto drinkto bath to wash dishes</p> <p>generate electricity bathing drinking washing clothes </p> <p>biggest use of water is for drinkingfor cleaningfor bathing for cleaning clothes we should conserve it please friend conserve it</p> <p>Bathing, cooking , washing , drinking.</p> <p> * Water is used for drinking* water is used for washing clothes* water is used for washing floor* water is used for cooking</p> <p>irrigation;bathing ;drinking,cooking</p> <p>The four uses of water are (1) help in cooking (2) help in washing cloth(3) help in bathing(4) help in watering the plants</p> <p>1. drinking2.washing3.bathing4.irrigation</p> <p>it is use in washing, bathing, drinking, gardening</p> <p>the four uses of water are 1.washing the clothes2.for drinking3.for bathing4.washing hands</p> <p>to bathto drinkto make foodto digest food</p> <p>washingbathingcookingand drinking there all types of uses water</p> <p>1.Drinking2.Help growing plant3.Balance environment.4.Colling earth</p> <p>for drinking, for bathing , for irrigation,for washing</p> <p>four uses of water are : I to wash cloth ii brush your teeth iii bath IV wash utensils</p> <p>Four uses of water are water is used in brushing, in our homes clothes are washed from water and utensils are also washed from water it is used for bathing, it is used for drinking,and for cooking and etc </p> <p>1.water is used for domestic purpose 2.water used in industrial purpose 3. water is used in agricultural fields</p> <p>Watercan beusedfor direct and indirect purposes. Direct purposes include bathing, drinking, and cooking, while examples of indirect purposes are theuse of waterin processing wood to make paper and in producing steel for automobiles. The bulk of the world'swater useis for agriculture, industry, and electricity.</p> <p>any four uses of water are. 1.water is used of drinking 2.It is used to grown plants 3.to wash cloths 4.water is also used to take bath</p> <p>1. For bathing ,2. washing utensils and vehicles,vegetables ,etc3. drinking purpose and4. planting the plants and trees</p> <p>washing clothes.to drinking.to bathing.moping floor</p> <p>for drinkingfor bathingfor washing clothesfor cooking</p> <p>it is used for:cleaning housedrinkingprovides minerals bathingto generate electricity</p> <p>1.) Water can drink us</p> <p>Their are some uses of water -We can drink water-We can bath with water-We can Wash our clothes-We can use water for cleaning also</p> <p>to process of photosynthesisto drinkto cell to cell water transformationto clean our body</p> <p> 1. we can use water for bathing.2we can use water for washing clothes and floor .3.we can use water for drinking.4.wr can use water in agriculture field.</p> <p>cooking bathingdrinkingwashing </p> <p>water is used for following purposes.</p><p>1. Bathing2. Drinking3. To prepare Food4. For Irrigation (Agriculture)5. Household works</p> <p> drinking water, dirty water and polluted water and pure water</p> <p>uses of water are-to drink to wash tha dishes to wash clothes for moping tha floor </p> <p>water uses for irrigationfor drinkingfor generating hydroelectricfor the growing plants</p> <p>1Water is using in Garden2Water is using in many industryl works 3 Water using in Our daily routine works like bath and may more 4 Water is using in Cloths industry Colour and printing Works And also in all types works need Water. </p> <p>it is useful to cleaning। house nd many thingsfor cookingfor bathingnd most important to drink</p> <p>for drinking for industrial activities for households activities such as bathing washing etc.for irrigation for construction etc.</p> <p>daily used in washing clothes , bathing , drinking , cleaning rooms </p> <p>water is used to clean clothes.water is used to generate electricity.and for bathing, and for drinking</p> <p>washing clothes drinking bathing watering the plants</p> <p>Gour uses of water areDrinkingbathingwatering to plant Washing clothes</p> | |
| 716. |
Which states of India have oil fields?Besides oil thot 1. |
| Answer» <p>Andhra Pradesh is the right answer</p> <p>The states having oil fields in india areandhra pradesh,mizoram,orissa,tamil nadu,rajasthan,arunachal pradesh.</p> <p>Mumbai have oil fields</p> <p>andhra ,pradesh ,mizorm ,orrissa ,tamilnadu,etc have oil field</p> <p>the state having oil fields in India are Andhra Pradesh, Mizoram ,Orissa Tamilnadu, Rajasthan, Arunachal Pradesh</p> <p>Andhrapradesh is the correct answers</p> <p>The states having oil fields in india ara andhra pradesh, mizoram,orissa,tamilnadu,rajsthan,arunachal pradesh.</p> | |
| 717. |
14.Define electromagnetic waves. What is the sourceof electromagnetic wave ?2 |
| Answer» <p>Definitionofelectromagnetic wave. : one of thewavesthat are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radiowaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.</p><p>Electromagnetic radiation, is a form of energy emitted by moving charged particles. As it travels through space it behaves like a wave, and has anoscillatingelectric field component and anoscillating magneticfield. These waves oscillate perpendicularly to and in phase with one another. </p> | |
| 718. |
Find the next term of the given series:C-3, F -6, I - 9, L-(1) O 1368.12, ?(2) Q 17(3) P 16(4) O 15 |
| Answer» <p>Ans:(4)O-15alphabetical order and their numbers</p> <p>4 option is correct</p> <p>4 option is coreect because of their ordee</p> <p>why detail m btyo</p> <p>becuse evey number ha s 3 difference</p> | |
| 719. |
ćName the process in which cloth is given different colours. |
| Answer» <p>. Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the objective of achieving color with desired fastness.</p> | |
| 720. |
A first order reaction takes 40 minutes for 30% decomposition. Calculate tofor this reaction. (Given log1.428- 0.1548)231/2 |
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| 721. |
Al is highly reactive, but Al³ is not. Give Reason |
| Answer» <p>alumminium is highly receive bcoz of presence of valence electronbut after removal its valence electron i.e Al^3 become stable i. e gain stable noble gas configuration due to stable it does not react with another ones</p> <p>alumminiun is highly receive bcoz of presence of valence electtonvut after removal it's valence electrons become stable gain stable Noble gas configuration due to stable it does not react with another ones</p> <p>because Al is reactive because</p><p> it requires electrons so it</p><p> reacts quickly </p><p>but Al3 is already came to</p><p> noble configuration. </p><p>unless given any charge at large scale</p> <p>Al is not nutral it has to gain more Al ions to get stable</p> <p>because Al³ has already completed no. of electrons in its outer most shell</p> | |
| 722. |
7. List two methods of producing magnetic fields. |
| Answer» <p>Two methods of producing magnetic fields are as follows: (a) Magnetic field can be produced by placing a permanent magnet or a horse-shoe magnet at the place, where magnetic field is required. (b) Magnetic field is produced around a current carryingstraightconductor or a current carrying coil.</p> | |
| 723. |
In what way oiling and greasing help to prevent rusting? |
| Answer» <p>Asoiland water do not mix with each other,oilingforms a protective coating for the metal and hencepreventit fromrusting.Oilcan penetrate the oxide-water on the metal and stabilize it.A thin layer ofgreasewillprevent rustor oxidation of iron based products. It is the contact with oxygen that results inrustandgreasewillpreventit the Oxygen fromrustingthe metal. Contact with water (H2O) promotesrustformation.</p> <p>that's right</p> | |
| 724. |
Will it be beneficial tomake soil free from microorganisms? Why |
| Answer» <p>no , because microorganisms helps in decomposition of organic matter and convert it into nutrients that are essential for soil.</p> | |
| 725. |
. Why is variation beneficial to the species but not necessarilyfor the individual? |
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| 726. |
Show that vu -2as by calculus method: |
| Answer» <p>a = dv/dt</p><p>a = (dv/ds)(ds/dt)</p><p>a = v (dv/ds)</p><p>∫ a ds = ∫ v dv</p><p>as = ½ v² + constant</p><p>v = u at s = 0</p><p>a * 0 = ½ u² + constant</p><p>constant = -½ u²</p><p>as = ½ v² - ½ u²</p><p>2as = v² - u²v²=u²+2as</p> | |
| 727. |
semiconductor |
| Answer» <p>The material which has electrical conductivity between that of a conductor and that of an insulator.Devices made of semiconductors, notably silicon, are essential components of most electronic circuits.</p> <p>pls give me full explainationwith diagram</p> | |
| 728. |
What type of impurity to be dopped to get P-type semiconductor(A) Trivalent(C) PentavalentTetravalent(D) All of the above |
| Answer» <p>When anintrinsic semiconductorisdopedwith Trivalent impurityit becomes aP-Type semiconductor.</p> | |
| 729. |
What are the main sources of our food? |
| Answer» <p>answer is th main source of our food like almonds, fruits breads,potato etc.</p> | |
| 730. |
OP3. What are the main sources of food ? |
| Answer» <p>Plants are thesources of foodingredients like grains, cereals, vegetablesandfruits. Animalsprovideus with milk, meat productsandeggs. Cows, goatsandbuffaloes are some common animals whichgiveus milk. Milkandmilk products like butter, cream, cheeseandcurd are used all over the world.</p> | |
| 731. |
1. What are the main sources of food? Give two examples of each. |
| Answer» <p>The additional foods are important because they: Provide nutrients that may not be available in the staple food. For example, legumes such as peas, beans and lentils add protein, iron and other minerals and fat; green and yellow vegetables and fruits add vitamins A and C, folate, and fibre.</p> <p>Animal-basedfoodsare themain sourcesof complete proteinandinclude meat, fish, poultry, eggs, milkandcheese. Plant-basedfoodsalso contain protein, but are "incomplete"sourcesof protein, meaning they contain only some of the essential amino acids.</p> <p>Animal based foods are the main sources of complete protein and include meat fish egg milk and cheese. plant based foods also contain protein but are "incomplete" sources of food meaning they contain only some of the and essential animo acids</p><p>Hope it helps u ^_^</p> | |
| 732. |
NE2S2 सरल कीजिएory+2)+(-2) + br+Y-7)-2200/- |
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| 733. |
1. What are surface water sources? |
| Answer» <p>Surface water is water on the surface of the planet such as in a river, lake, wetland, or ocean. It can be contrasted with groundwater and atmospheric water. Non-saline surface water uses is replenished by precipitation and by recruitment from ground-water.</p> | |
| 734. |
Name a source of surface water |
| Answer» <p>Ground water is used in surface water</p> | |
| 735. |
Describe conductor, semiconductor andinsulator in terms of band gap. |
| Answer» <p>Ininsulatorsthe electrons in the valencebandare separated by a largegapfrom the conductionband, inconductorslike metals the valencebandoverlaps the conductionband, and insemiconductorsthere is a small enoughgapbetween the valence and conductionbandsthat thermal or other excitations can bridge thegap</p> | |
| 736. |
ISU72.Is weight a force? Write the SI unit of force.73at |
| Answer» <p>Theweightof an object is theforceof gravity on the object and may be defined as themasstimes the acceleration of gravity, w = mg.</p><p> Since theweightis aforce, its SI unit is the newton. Densityis mass/volume.</p> <p>Weight is a force </p> <p>weight is a force,is the answer</p> <p>Yes, Weight is a force. </p><p>SI Unit of force is NEWTON. </p> <p>so simple we can say that weight is force which SI unit is Newton ,F=W=mg</p> | |
| 737. |
OXIDES |
| Answer» <p>An oxide is a chemical compound that contains at least one oxygen atom and one other element in its chemical formula. "Oxide" itself is the dianion of oxygen, an O2–atom. Metal oxides thus typically contain an anion of oxygen in the oxidation state of −2.</p> | |
| 738. |
what are the functions of gene |
| Answer» <p>Eachgeneoccupies a specific position on a chromosome. Becausegenesprovide instructions for making proteins, and proteins determine the structure andfunctionof each cell in the body, it follows thatgenesare responsible for all the characteristics you inherit.</p> | |
| 739. |
Difference between promotor and regulator gene |
| Answer» | |
| 740. |
transcription method |
| Answer» <p>Please mention the question.</p> <p>Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase. Both DNA and RNA are nucleic acids, which use base pairs of nucleotides as a complementary language.</p> <p>thxx </p> | |
| 741. |
If the sequence of the coding strand in a transcription unit ts writtenas follows:Write down the sequence of mRNA. |
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| 742. |
route ,thas 4 eu tralbic and auiogs |
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| 743. |
In evolutionary terms, we have more in common with(a)(b)(c)(d)3.a Chinese school-boya chimpanzee.a spider.a bacterium |
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| 744. |
There is a mixture with sand and iron fillings.the activity for the separation of iron fillings from sand. |
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| 745. |
1.What are alkalis? |
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| 746. |
A non-metal A iC. Oxide B is toxic whereas oxide C causes global warming17. (a)s an important constituent of our food and forms two oxides B and5(i) Identify A, B and C.(ii) To which group of periodic table does A belong? |
| Answer» <p>what is silicon</p> <p>it is not in answer</p> | |
| 747. |
Atomic no of two elements x and y is 12and 15 respective. Formula of compoundformed between them is(A) xy(B) xy,(C)x2y3(D)x3y2 |
| Answer» <p>A is the Answer of this question </p> <p>x3y2 is formula of compound</p> <p>option D is the right answer</p> <p>option d is the crrct answer of ur question</p> <p>Ans = (C) is the write answer </p> | |
| 748. |
20. What are amphoteric oxides? Give two examples of amphoteric oxide? |
| Answer» <p>thanks </p> | |
| 749. |
A car moving at 40 km/h is to be stopped by applyingbrakes in the next 40 m. If the car weighs 2000 kg,what average force must be applied on it? |
| Answer» | |
| 750. |
2, A car moving at 40 km/h is to be stopped by applyingbrakes in the next 40 m. If the car weighs 2000 kg,what average force must be applied on it? |
| Answer» | |