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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.
| 2951. |
Explain the quartz crystal method for detection of ultrasonic wave. |
| Answer» <p>Quartz crystal method: This method is based on the principle of Piezo-electric effect. When one pair of the opposite faces of a quartz crystal is exposed to the ultrasonic waves, the other pairs of opposite faces developed opposite charges. These charges are amplified and detected using an electronic circuit.</p> | |
| 2952. |
z ( z - 1 ) + 2 ( z - 1 ) |
| Answer» <p>z^2-z+2z-2z^2+z-2 </p> | |
| 2953. |
What are the factors contributing to polar climate?uins to adapt to |
| Answer» <p>1. latitude 2. longitude3. amount of sun rays received 4. duration of sun rays falling there.5. Type of vegetation. </p> | |
| 2954. |
2. What can happen if an organism doesnot adapt? Support your answer bygiving one example. |
| Answer» <p>This is where the basic needs of theorganismto survive are met: food, water, shelter from the weather and place to breeditsyoung. Allorganismsneed toadapt to their habitatto be able to survive. Anadaptationis a modification or change in theorganism'sbody or behaviour that helps it to survive.</p> | |
| 2955. |
9. How do elephant living in the tropical rainforest adapt itself? |
| Answer» <p>Elephant livingin thetropical rainforest arewelladapted itself tothis region. (i)Theyhave strong sense of smell and uses its trunk for smell andtohold food. (ii)Theyalso use their trunktohold food. (iii)Theyhave long ears which help them in keeping cool in hot and humid climate</p> | |
| 2956. |
characterist7. The tropical rainforest has a large population of antmals. Explain whyit is so. |
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| 2957. |
DIVERSE USES OF THE FORCE THEORY |
| Answer» <p>Force theoryis the process of establishing a new government or country through the use offorce. This process involves one group of people entering into an area and making everyone else within that territory submit to the new government and social system.Throughout the course of world history, you will find force theory demonstrated in the development of many western countries. The most widely-known of these arethe United States, and manySouth Americancountries, which were established by theBritishandSpanishthrough the use of force.</p> | |
| 2958. |
Orbital picture of ethene. |
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| 2959. |
what are the characteristics of tropical forest |
| Answer» <p>The tropical rainforest biome has four main characteristics: very high annual rainfall, high average temperatures, nutrient-poorsoil, and high levels of biodiversity (species richness). Rainfall: The word “rainforest” implies that these are the some of the world's wettest ecosystems.please like the solution 👍 ✔️👍</p> | |
| 2960. |
Describe the physical features of the Moon |
| Answer» <p>Moon has no atmospher</p> | |
| 2961. |
Why does nitrogen show catenation pi7.1SGive the disproportionation reaction of H,PO,unins agent? |
| Answer» | |
| 2962. |
Deckshith said that,"we can't see cells with unaided eye". Is the statement true or fExplain. (ASI) |
| Answer» <p>It is true. Because, cells are very, very small in size. They are in micro dimensions.</p> | |
| 2963. |
l sovethe angle o& S |
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| 2964. |
a) Explain how blod circulation takes place in humans |
| Answer» <p>It consists of the heart and thebloodvessels running through the entire body. The arteries carrybloodaway from the heart; the veins carry it back to the heart. ... The pulmonarycirculationis where the fresh oxygen we breathe in enters theblood. At the same time, carbon dioxide is released from theblood</p> | |
| 2965. |
what is hibernation |
| Answer» <p>Hibernation is a state of inactivity and metabolic depression in endotherms. Hibernation refers to a season of heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It most commonly occurs during winter months</p> | |
| 2966. |
eAtrete.es hibernation help a dormouse? |
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| 2967. |
How is diapause different from hibernation? |
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| 2968. |
Reading comprehension means understanding a ............. texta) Oralc) Usualb) Writtend) Audio |
| Answer» <p>Reading comprehension means understanding a written text.</p> | |
| 2969. |
features of windows 7 |
| Answer» <p>The primary features of Windows 7 are:</p><p>Start Menu– The Start Menu provides the primary access point for programs and applications on your ThinkPad.</p><p>Taskbar and Notification Area– The Taskbar contains 3 main components, the Start button, the Task/Quicklaunch bar and the System Notification Area.</p><p>Windows Snipping Tool– Windows 7 includes an application to capture, save and share “snipped” images from your desktop.</p><p>Displaying to a External Monitor or Projector– The ThinkPad is equipped with one or more external display connectors so that you may connect to an external monitor or the multimedia projector.</p><p>Using Local Area Networks (LAN/WiFi)– The ThinkPad is configured to access both wired and wireless network resources.</p><p>Windows Explorer Favorites– File system favorites are quick links to specific directories (folders) located on your hard drive.</p><p>Windows Explorer Libraries– Libraries are an easy way to collect and track documents on your computer that are related to one another but are not necessarily located in the same directories (folders).</p> | |
| 2970. |
a. Why do we make use of glass in windows |
| Answer» <p>Basically because glass is the cheapest material that light passes through readily. The basic function of a window is to allow light into a building and since cost is a major driver in building materials glass is the best choice. Other materials that might work would be things like quartz crystal (this is much more expensive and has to be made a lot thicker) and plastics (also inexpensive but don’t transmit light as well). Glass also has the benefit of history because it was the only material used for windows for centuries there has been a buildup of industry and technology around it as the window material of choice. So now even though there are other options for window materials there are economies of scale around the use of glass.</p> | |
| 2971. |
2 ala 2 on a day when the atmospheric pressure is 750 mm Hg2Atwhat temperature would CO2 molecules have a n mns speed equal to thatof H2 molecules at 25°C?03nt mean square average and |
| Answer» <p>square root of 3kT/M, so this question is based on the mass ratio.</p><p>for He, the rms speed is = sqrt of 3k(273+25)/4for CO2, the same rms speed is = sqrt of 3kT/44</p><p>(298)/4 = T/44; T = 3278 K</p> | |
| 2972. |
1. Write a short note on hominins. |
| Answer» <p>Ahominidis a member of the family Hominidae: all of the great apes. A hominine is a member of the subfamily Homininae: gorillas, chimpanzees, humans (excludes orangutans). Ahomininis a member of the tribe Hominini: including humans. A hominan is a little used term for a sub-tribe.</p> | |
| 2973. |
methods for soil checkup |
| Answer» <p>PLEASE LIKE AND SHARE THIS APP</p> | |
| 2974. |
.1. Write a short note on Walsh diagrams' |
| Answer» <p>Walsh diagrams, often called angular coordinate diagrams or correlation diagrams, are representations of calculated orbital binding energies of a molecule versus a distortion coordinate, used for making quick predictions about the geometries of small molecules.</p> | |
| 2975. |
1. You may have seen different colour litter bins in yourlocality. What do their colours mean?2. Why does a scrap dealer (kabadiwala) buy oldnewspapers and other used items from houses? |
| Answer» <p>they buy it because they recycle it </p> <p>1) blue dustbin used for wet materials, and green dustbin used for dry materials. 2)they bought by us for recycle it.</p> <p>they buy because they recycle it</p> | |
| 2976. |
India y Herca uomoWhich one of the following is not an agency of public opinion ?Aco |
| Answer» <p>Public opinionconsists of the desires, wants and thinking of the majority of the people. It is the collectiveopinionof the people of a society or state on an issue or problem. This concept came about through the process of urbanization and other political and social forces.</p><p>hope this will help you like my answer and Mark it as best answer</p> <p>public opinion consists of the desires , wants and thinking of the majority of the people. lt is the collective opinion of the people of a society or state on an issue or problem. This concept came about through the process of urbane and other political and social force. </p> | |
| 2977. |
Whenwe eat food under a tree,which are the animals that comeround us? |
| Answer» <p>Birds are the animals</p> <p>The animals that come around us is monkey ,may be birds ,dog also</p> <p>Herbivores will come around us, as they depend on grasses and plants.</p> <p>what is food ? give the five examples of food</p> | |
| 2978. |
4. How will you show that air is dissolved in water?5. Why does a lump of cotton wool shrink in water? |
| Answer» <p>Ans :- 4.Toshow that air is dissolved in waterwe takewaterin a pan and heat it. Just before it boils, you will notice some bubbles at the inner surface of the pan. These bubbles are formed because ofair dissolved in water.</p><p>5.Alump of cotton wool shrinks when immersed inwater. Thisisbecause air present in thecotton woolescapes. Thus, the volume of thecotton wooldecreases.</p> <p>thanks for the shot answer </p> | |
| 2979. |
asbestos, vacuum, enclosed air, cotton, glass and wool are commonly used for insulation. write any two uses of any two of these materials |
| Answer» <p>cotton-Becausecottonis a natural product and because of the way it is designed and manufactured into clothing, it has manyadvantages, such as its ability to control moisture, insulate, provide comfort and it is also hypoallergenic, weatherproof and is a durable fabric.</p> <p>All parts of thecottonplant areuseful. The most important is the fiber or lint, which is used in makingcottoncloth. Linters – the short fuzz on the seed – provide cellulose for making plastics, explosives and other products.</p> | |
| 2980. |
ent ways5 cm |
| Answer» <p>since 13² = 12²+5² </p><p>so, it is a right ∆ and area = 1/2*5*12 = 30cm²</p> | |
| 2981. |
Rajesh has been diagnosed with anaemia.What food items will you advise him to eat andwhy? |
| Answer» <p>He needs to eat food rich in iron content and vitamin B.Hence leafy vegetables,nuts,meat, etc</p> <p>Food rich iron, vitamin B </p> <p>I would suggest him to eat anyone of green vegetables because they are rich in iron and can help him cure his disease</p> | |
| 2982. |
4. Tendrils encircle or coil around the object in contact with it. Elaborate. |
| Answer» <p>Auxin diffuses to the other part which is away from the support Part of the tendril in contact from the support does not grow rapidly.Part of the tendril away from the support grow rapidly and cause the tendril to grow around a support.</p> | |
| 2983. |
ts we รก Mustard oil and grease both are insoluble in water, but mustard oil floats whereas greadown, why?ns. |
| Answer» <p>Theoilalwaysfloatsto the top because it is less dense thanwater.Oilandwaterdon't mix becausewatermolecules are more attracted to each other than tooilmolecules</p> <p>thanks</p> | |
| 2984. |
Can there be mitosis without DNA replication in 'S' phase? |
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| 2985. |
Determination of specific heat of solid experimentally. |
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| 2986. |
verify experimentally that sin i/sin r is a constant. |
| Answer» <p>sine of an angle = opposite leg / hypoteseus</p><p>it is just a ratio</p><p>therfore, when sine of the incident - sine of the reflection, the angle are congruent.therefore the two right triangles are similar.</p><p>therefore the ratio must be equal to 1</p> | |
| 2987. |
9.What are weeds? How can we control them? |
| Answer» | |
| 2988. |
what are weeds |
| Answer» <p>The unwanted plants that grow along with the crops,wheat,etc are called weeds</p> <p>unwanted plants which grow along with main crops.</p> <p>The unwanted and undesirable plants growing naturally with the cultivated crop, are called weeds.</p> <p>who deleted my answer</p> <p>Weeds are the unwanted plants grown in our agriculture fields</p> <p> weeds are the unwanted plants grown in our agriculture field</p> <p>Unwanted plant which grow along with main crop called weeds</p> <p>unusual plants are known as weeds</p> <p>The unwanted plants grow in cultivated field is called weeds.</p> <p>the unwanted plants that grow with crop are called weeds...</p> <p>umwanted plants are known as weeds. </p> <p>weeds are unwanted plants </p> <p>weeds are unwanted plants which grow near crops</p> <p>unwanted plant which grows with crops , trees etc are called weeds</p> <p>Weeds are unwanted plants . they grow with crops and compete for nutrients and water with main crops . so weeds are very harmful .</p> <p>Some undesirable or unwanted plants may grow naturally along with the crop, such plants are called weeds. </p> <p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p>View all</p><p>Aweedis a plant considered undesirable in a particular situation, "a plant in the wrong place". Examples commonly are plants unwanted in human-controlled settings, such as farm fields, gardens, lawns, and parks. ...Weedcontrol is important in agriculture.</p> <p>the unwanted plant are called weed weeds maybe harmful of our crops can spread the weedicide on our field to prevent the weeds.</p> <p> weeds are unwanted plant that grow along with crop</p> <p>the unwanted plants grow with crops is called weeds . </p> <p>the unwanted plants that grow along the crop is known as weed</p> <p>the unwanted plants or crop that grow along the grind and are needs to be removed for healthy growth of crops are known as weed</p> <p>the unwanted and harmful plants with grow along with crop </p> <p>weeding involves removal of unwanted and uncultivated plants called weeds. </p> <p>A wild plant which is unwanted in the field is called weeds</p> <p>the unwanted plant 🌱 which take all nutrients and the crop dead</p> <p>unwanted crops are known as weeds.</p> <p>The unwanted plants ( or wild plants) which grow along with a cultivated crops are called weeds. Example..... Grass ( Ghass)... </p> <p>the unwanted plants which grow along with main crops</p> <p>Weeds are chemicals.</p> <p>Weeds are the unwanted plants that grow along with the crops , and compete with them for sunlight , nutrients .</p> <p> unwanted plant growing in crop field which can be removed by weeding and weedicide</p> <p>the undesirable plant is called weeds </p> <p>The unwanted plants grown on the field are weeds. tilling before sowing helps in their removal. </p> <p>unwanted plants that grow with crops are called weeds</p> <p>weeds are unwanted plant which grow in ground</p> <p>weeds are unwanted plants grown with crops</p> <p>Aweedis aplantconsidered undesirable in a particular situation, "a plant in the wrong place". Examples commonly are plants unwanted in human-controlled settings, such asfarm fields,gardens,lawns, andparks</p> <p>weed is a plant considered undesirable in a particular situation, "a plant in the wrong place". Examples commonly are plants unwanted in human-controlled settings, such as farm fields, gardens, lawns, and parks. ... In the same way, volunteer crops (plants) are regarded as weeds in a subsequent crop.</p> <p>undesirable plants grow with main plant are called weeds.</p> <p>Aweedmay be defined as any plant or vegetation that interferes with the objectives offarmingor forestry, such as growing crops, grazing animals or cultivating forest plantations. Aweedmay also be defined as any plant growing where it is not wanted. ... However, some plants areweedsregardless of where they grow.</p> <p>Aweedis aplantconsidered undesirable in a particular situation, "a plant in the wrong place". </p> <p>घास एकबीजपती हरा पौधा है </p> <p>weeds are unwanted plants that grow along with crops</p> <p>Aweedis a plant considered undesirable in a particular situation, "a plant in the wrong place". Examples commonly are plants unwanted in human-controlled settings, such as farm fields, gardens, lawns, and parks. ... In the same way, volunteer crops (plants) are regarded asweeds in a subsequent crop.</p> <p>unwanted plant that grow along with another plants </p> <p>A weed is a plant considered undesurable in a particular situation.</p> <p>unwanted plants which grow with our plants and compet to water and nutrients are known as weeds</p> <p>The unwanted plants grow along with crop are called weeds</p> <p>weedis aplantconsidered undesirable in a particular situation, "a plant in the wrong place". Examples commonly are plants unwanted in human-controlled settings, such asfarm fields,gardens,lawns, andparks.</p> <p>weeds are the unwanted plants grown in our agriculture fields 😷😷🤟🤟</p> <p>A weed is a plant considered undesirable in a particular situation, "a plant in the wrong place". Examples commonly are plants unwanted in human-controlled settings, such as farm fields, gardens, lawns, and parks.</p> | |
| 2989. |
How does lithum appear in its pure state? |
| Answer» <p>Lithium is the third element of the periodic table and was discovered in 1817 by a chemist named Arfvedson; This is the first metal encountered in the periodictable and it is a silvery colored solid when purified.One thing to remember isthat lithium isthat lithium is never found alone in nature. It is always bonded to otherelements. Scientists use the letter pair "Li" to represent lithium in chemicalequations.</p> | |
| 2990. |
EXERCISE1. Electrolysis of dil. H,so, liberates gases at anode and cathode respectively(1) 0%, SO(2) SO, 02(3) Og Hy(4) H., SO |
| Answer» <p>iska answer 2 hoga so2o2</p> <p>answer is O2 and H2 ie, option C</p> <p>The answer is option no c 🙂</p> <p>option c is correct answer</p> <p>option C (o2,h2) is the correct answer.</p> <p>option C is the correct answer </p> <p>C is correct answers</p> <p>Answer: (3). O2, H2</p><p>During electrolysis, water or other acidic solution contains water splits into 2 moles of Hydrogen and one mole of Oxygen.</p> <p>Answer: (3). O2, H2</p><p>During electrolysis of acidic solution, oxygen gas liberates at the anode and hydrogen gas liberates at the cathode.</p> <p> option c is the correct answer</p> | |
| 2991. |
Write the difference between oviparous and viviparous animals ? |
| Answer» <p>The animals which give the birth of their young one's called viviparousThe animals which lay eggs called oviparous</p> <p>Animal which lay eggs is called oviparous animals. Animal which give birth to young ones is called viviparous animals</p> <p>animal lay eggs called oviparous. and animal wich give birth to its young one is viviparous. </p> <p>Animals which lay eggs is called oviparous and do not have outer ear animals which give birth to young once is called viviparous like humans and have outer ears</p> <p>oviparous that lay eggs to give young ones .viviparous that gives birth to young ones</p> <p>oviparous refer to those animals who reproduce by laying eggs for example: snakes, crocodiles, birds etcand viviparous are those who produce living young instead of laying eggs. examples of viviparous are cats, dogs, lion and many more.</p> <p>Animal lay Eggs is Called a oviparous.And Animal which give birth to Young one is viviparous.</p> <p>OVIPAROUS ANIMALS </p><p>The animal which lay egg are called OVIPAROUSanimal For example-birds,snakes,frogs,insect.</p><p>VIVIPAROUS ANIMAL</p><p>The animal which gaveto their young one are called VIVIPAROUSANIMALS For examplecat,dog,lion,elephant,buffalo.</p> <p>oviparous - the animal who lays eggs are called oviparous.viviparous - the animals who gives birth to a new offspring of his own kind are called viviparous</p> <p>The maindifference between oviparous and viviparous animalsis thatoviparous animalsdo not undergo any embryonic development inside the mother whereasviviparous animalsdevelop into a younganimalinside the mother. This meansoviparous animalslay eggs. ... Most mammals areviviparous animals.</p> <p>Animal. which gives young ones is called oviparous.for example:-cow , goat.Animal which give lay egg which later developed in young ones is called viviparous.for example:-birds,insects</p> <p>Animals which lay eggs are called oviporous animals.Animals which give birth of their young ones are called oviporous animals.</p> <p>oviparous are the animals which are laying the new ones in egg shells.</p><p>The animals which lay the baby are known as viviparous</p> <p>Animal which lay eggs is called oviparous animal.Animal which give birth to young ones is called viviparous animals.</p> <p>the animals which give birth to youngones directly are called viviparous.the animals which lay eggs are known as oviparous.hope this answer helps you out..</p> <p>Oviparous = The organism which lays eggs are called oviparous animals.Viviparous = The organisms which gave birth to their young ones are called Viviparous animals.</p> <p>animal which lay eggs🥚 is called oviparous animal.animal which give birth to young ones is called viviparous animals</p><p>I HOPE IT HELPS YOU 🍀IF U LIKE THIS ANSWER LIKE IT AND FOLLOW ME FOR MORE ANSWERS . THANK YOU </p> | |
| 2992. |
1.Write the difference between oviparous and viviparous animals? |
| Answer» <p>animals that lay eggs and hatches out are called oviparous,whereas animals that give birth to young ones are called viviparous.</p> <p>oviparous animals : animals that lay eggs outside the bodyare called oviparous animalsviviparous animals : animals that give birth to young ones are called viviparous animals..</p> <p>viviporus which gave birth to young ones.oviparous which lay egg</p> <p>animals that lay eggs🥚and hatches 🐣 out are called oviparous where as animals that give birth to young ones are called viviparous I HOPE IT HELPS YOU 🌻</p> | |
| 2993. |
w=mgW=mg = 0.50 x 9.8 = 4.9 N7 |
| Answer» <p>Sorry we are currently taking questions in English only </p> | |
| 2994. |
which is self adjusting force |
| Answer» <p>Static friction is considered aself adjusting forcebecause it wants to the objects to remain at rest and not move. Therefore, if an externalforceis applied, the static frictionforcewill equal the magnitude of the externalforce, until it surpasses the threshold of motion.</p> <p>Static friction is considered aself adjusting forcebecause it wants to the objects to remain at rest and not move. Therefore, if an externalforceis applied, the static frictionforcewill equal the magnitude of the externalforce, until it surpasses the threshold of motion.</p> <p>static friction is the self adjusting force</p> | |
| 2995. |
prove that 1/f=1/u+1/v |
| Answer» <p>The formula is a relation between the object distance u , inmage distance v and the focal length from the pole of the concave mirror. The formula is valid for the images in convex mirror and even for the images in lens.</p><p>We consider the image formed by aconcave mirror whose focal length is f and whose radius of curvature is r = 2f.</p><p>Let P be the pole of the concave mirror. Let P, F , C be the pole, focucal point , and centre of curvature along principal axis . So, PC = 2PF , as r = 2f.Let AB be a vertically standinding object beyond C on the principal axis.</p><p>Then the ray starting from B parallel to principal axis incident on the mirror atD reflects through the focus F. Let the reflected ray be CFB' .</p><p>The another ray starting from B through the centre C incident on the mirror atE retracesits path by reflection being normal to the mirror.Now BE and DF produced meet at B'.</p><p>Now drop the perpendicular from B' to PC to meet at A'.</p><p>Drop the perpendicular from D to PC to meet at G.</p><p>NowPF = f , the focal length. PA = u object distance from the mirror. PA' = v the image distance.</p><p>Now consider the similar triangles ABC and A'BC.</p><p>AB/AB' = AC/ A'C =( PU-PC)(PC-PA') = (u-2f)/((2f-v).....(1)</p><p>Consider the similar triangles DFG and A'B'F.</p><p>DG/A'B' = PF/PA' PF/(PA'-PF)= f/(v-f)... (2)</p><p>DG = AB. So (2) could be rewritten as:</p><p>AB/A'B' + f/v ....................(3).</p><p>From (2) and (3), LHS being same , we can equate right sides.</p><p>(u-2f)/(2f-v) = f/(v-f).</p><p>(u-2f)(v-f) = (2f-v)f.uv-2fv -fu +2f^2 = 2f^2 -fv</p><p>uv = fu +fv</p><p>Dvide by uvf;</p><p>1/f = 1/v+1/u.</p> <p>1/v+1/u is the correct answer</p> | |
| 2996. |
3. Name the two methods of reproduction in higher plant4. Define pollination |
| Answer» <p>Asexual reproduction may occur throughbudding,fragmentation, fission, spore formation and vegetative propagation. Plants have two main types of asexual reproduction in which new plants are produced that are genetically identical clones of the parent individual.</p> <p>Pollination is the transfer of pollen from a male part of a plant to a female part of a plant, enabling later fertilisation and the production of seeds, most often by an animal or by wind.</p> | |
| 2997. |
pollination and fertilisation |
| Answer» <p>Pollination is the transfer of pollen from a male part of a plant to a female part of a plant, enabling later fertilisation and the production of seeds, most often by an animal or by wind.</p><p>Fertilization is the process by which male and female gametes are fused together, initiating the development of a new organism.</p> | |
| 2998. |
Expain the difference between self- Pollination and cross Pollination |
| Answer» | |
| 2999. |
Answer me Tolowing in Two or Tnree senrences.Differentiate between cross-pollination and self-pollination. |
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| 3000. |
pollination define |
| Answer» | |