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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.
| 67451. |
Difference between human eyes and photographic camera |
| Answer» 1. Eye is a live organ for sight whereas a camera is an equipment to capture images.2. Eye uses live cells to detect light while the camera uses a diaphragm to detect light and capture images.3. Stereoscopic vision of eyes allows 3 dimensional images while camera captures only 2 dimensional images.4. The pupil adjusts the size while focusing while in a camera lens moves to change focus.5. Eyes have blind spots while cameras do not. | |
| 67452. |
Write different ways that we can induced the current |
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Answer» 1). By on and off switch 2). And bring magent near and then far By bringing a magnet near a coil...By taking a magnet away from the coil...By changing the amount of current in a neighbouring coil Increasing strength of currentIncreasing strength of magnetic fieldIncreasing area of coilNo of turns in a coil |
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| 67453. |
Difference between electric potential and potemtial difference |
| Answer» Electric potential at a point in an Electric field (for instance, let\'s take it as uniform) is the amount of work done in moving a unit positive charge from\xa0infinity\xa0to that point against electric forces. (attraction or repulsion)whereas Electric potential difference between two points in an Electric field is defined as the amount of work done in moving unit positive charge from\xa0one point to another point\xa0against the electric force.In other words, Potential difference is simply the difference of scalar potentials between two points or anything you consider...Now let\'s take an example.Say, you\'re\xa0placing\xa0a charge (+q) at the point O. Also, There are two points A & B in the electric field\xa0E(It acts outward since the line charge is positive). Now, you want to move a charge (say +q) from B to A. Then, you\'ve to do some work against the force of repulsion. This work done is the potential difference between two points or Voltage (i.e.)\xa0WB?A=dV\xa0which further equals\xa0?E.dx. Electric field is simply the force experienced by unit positive charge.If you bring the same charge from\xa0?\xa0instead of B, it\'s electric potential. Using the above figure & integrating for total work done (with limits\xa0?\xa0to some scalar distance\xa0r), one could derive Electric potential at a point. It\'s given by\xa0V=q4??r. But, you could ask,\xa0"Why this work is not stored as some potential energy?"Yes, It is. But, Potential energy requires the magnitude of another charge also... If\xa0r\xa0is the distance of separation of two charges, P.E. is given by\xa0Ep=qQ4??r. In other words,\xa0Ep=VQ | |
| 67454. |
Define catination? |
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Answer» Unique ability of self linking of carbon atoms to form long chains or branches is known as catenation... It is a special ability of carbon of bonding |
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| 67455. |
Thermal power plants are set up near coal or oil fields. Give reason. |
| Answer» It is due to the transmission of electricity which is more efficient which transports coal or oil over the same distance. | |
| 67456. |
Why is there is need to harness non -conventional source of energy? Give two main reasons. |
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Answer» For future use and to reduce pollution Because they are limited ...Non proper use or extraction of them may pollute the enviornment |
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| 67457. |
White Silver chloride turns grey in sunlight. give reason |
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Answer» As silver chloride is reactive to sunlight....this reaction is called photolytic decomposition reaction..thats why white silver chloride turns to grey It undergoes decomposition reaction to form silver and liberate chlorine gas |
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| 67458. |
Calculate number of electrons constituting one coloumb of charge. |
| Answer» 6.25×10^18Love | |
| 67459. |
Why people prefer condom other than other materials which is used for preventing pregnancy and std |
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Answer» It keep the sperm out of the ****** and lower the risk of pregnancy It has no side effects And prevents sperm to reach the ovum Because it prevents the speed of STD and don\'t causes any infection. ....... and it might be comfortable in sexual contact Easily avilable at medical stores???? |
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| 67460. |
Where can you find chloroplast in the stomata |
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Answer» Stomata u find on the any part of leaf but not at all In leaves of plant In ncert book activity is given in ch6 |
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| 67461. |
Give an example of a plant where stomata is absent |
| Answer» In aquatic submerged plant or the plants which are found in under the water the stomata is absent... Eg. Water ferns, mosses | |
| 67462. |
All ncert are important please tell me |
| Answer» Yes kyoki board ka paper ncert based hota h | |
| 67463. |
What is glass prism |
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Answer» It is a transparent refracting medium bounded by at least two lateral surfaces , inclined to each other at certain angle. The glass prism is the prism of glass it contain three triangle and its base is of rectangle it convert a white lightinto the seven colours which is known as vibgyor. Do u know what is prism?if yes then a prism made up of glass is glass prism. |
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| 67464. |
what happen when .after 10minut if barium chloride react with sodium sulphate.. |
| Answer» Barium sulphate settles as a white precipitate and also sodium chloride salt is formed page no 11 extreme down in textbook | |
| 67465. |
How brain and spinal cord are protected in human? |
| Answer» Brain is protected by a bony box name cranial, and our spinal cord is protected by backbone | |
| 67466. |
What is the solvent used in cough syrup |
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Answer» Ethanol Alcohol Alcohol Alcohol |
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| 67467. |
What is snails law? |
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Answer» It is the ratio of sin of angle of incidence to the sin of angle of refraction for a given pair of media remains constant A law stating that the ratio of the sines of the angels of incidence and refraction of a wave are constant when it passes between two given media |
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| 67468. |
What function is performed by human arms, forelimbs of frogs, and forelimbs of whales? |
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Answer» Thanks The function of hand is to able to reach objects with your hand, four limbs of frog helps in movement and and four limbs of whales acts as slippers and functions to stabilize the body and aid in turns Mind Human arms- doing work forelimbs of frog-jumping |
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| 67469. |
Define phylogeny.... |
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Answer» Phylogeny is defined as , the devolvement or evolution of particular group of organisms... To study the relation between species |
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| 67470. |
Differentiate between hormones and enzymes |
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Answer» S.st Enzymes are catalysts that speed up the metabolic reactions like digestion of food. They are released by glands having ducts like pancreas, liver and gall-bladder. Hormones are chemicals that are released by ductless glands, that sends out messages when a cell is affected in any part of body....................Hormones carry messages from one part to another part of body and enzymes do not travel to other parts and work on specific locations.\xa0Hormones perform reactions a little away from its origin where as, enzymes perform reactions from where they originate.................... |
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| 67471. |
Which class of animals were fossils ammonities...... |
| Answer» Ammonites were marine animals belonging to the phylum Mollusca and the class Cephalopoda. They had a coiled external shell similar to that of the modern nautilus. In other living cephalopods, e.g. octopus, squid and cuttlefish, the shells are small and internal, or absent. | |
| 67472. |
What was the fossil trilobite originally.... |
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Answer» Extinct species of arthropoda Trilobites form one of the earliest-known groups of arthropods. ... The trilobites were among the most successful of all early animals, existing in oceans for over 270 million years. By the time trilobites first appeared in the fossil record, they were already highly diversified and geographically dispersed. |
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| 67473. |
"Natural selection and speciation leads to evolution ". Justify the statement.... |
| Answer» Natural selection is the phenomenon by which the nature selects those species which possess survival advantage over the other species. ... Thus, we can say that both natural selection and speciation lead to the evolution of species on earth. | |
| 67474. |
When does process of gene flow take place |
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Answer» Evolution can also occur as a result of genes being transferred from one population to another. This gene flow occurs when there is migration. The loss or addition of people can easily change gene pool frequencies even if there are no other evolutionary mechanisms operating.HOPE U LIKE IT During the shifting of people from 1 region to other |
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| 67475. |
Why power of lens written as 1/f ? |
| Answer» | |
| 67476. |
How are the following pairs related.2, 2-dimethylpropane and 2-methylbutane |
| Answer» These all are the isomers of pentane | |
| 67477. |
What is the examples of ohmic and non - ohmic circuit |
| Answer» Ohmic-silver ,copperNon-ohmic -filament of bulb ,diode valve | |
| 67478. |
What is mean by mechanism of inheritance ? |
| Answer» (i) Characters are controlled by genes.(ii) Each gene controls one character.(iii) There may be two or more forms of the gene.(iv) One form may be dominant over the other.(v) Genes are present on chromosomes.(vi) An individual has two forms of the gene whether similar or dissimilar.(vii) The two forms separate at the time of gamete formation.(viii) The two forms are brought together in the zygote. | |
| 67479. |
List 2 functions of lymphatic system |
| Answer» Lymph nodes filter germs.Lymph vessel collect lymph and sent it to the vein. | |
| 67480. |
How to prepare for science in two days only( my preboards are going ) |
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Answer» Rat ko gajar khao mata rani pas krwa degi....If you really want to attain good marks..then get out of the app and study...and stop asking these sort of questions Mere pass aa jaao jaan badhiya tarike se Padua dunga Go through yur teachers notes & back. &mid exercise of science. Book You have to study notes of oswaal. |
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| 67481. |
Differentiate between soap and detergents |
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Answer» 1.Soap is sodium or potassium salt of long chain carboxylic acid.Detergent is ammonium or sulphonate salt of long chain carboxylic acid.2.Soaps are effective only in soft water.Detergents are effective in soft as well as hard water. It is given in ncertOr you can also check on google Soap have 4 letters whereas detergents has 10 letters. 100/100 |
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| 67482. |
Give three differences between voluntary and involuntary actions |
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Answer» Voluntary action is controlled by brain and involuntary action is controlled by spinal cord Hey anushka Voluntary actions r controlled by brain whereas involuntary actions r controlled by spinal cord. Voluntary actions r under r control whearas involuntary actions r not in r control. Voluntary actions result in muscular reaction whereas involuntary actions result in secretions of hormones. |
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| 67483. |
Why carbons forms strong bones with other carbon atoms hydrogen, oxygen, nitrogen and sulphur |
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Answer» Due to its tetravalency. And have high affinity with oxygen, nitrogen,and sulphur. I mean covalent bonds r usually weak not carbon bonds Although carbon bonds r weak, carbon form strong covalent bonds due to its small size as it has a strong force of attraction. By tetrevalence |
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| 67484. |
Define peristaltic movements. |
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Answer» The lining of canal has muscles that contract rhythmically in order to push the food forward .These are called peristaltic movements .These movements occur all along the gut. The movement along the oesophagus of the alimentary canal is termed as peristaltic movement. It helps in the smooth passage of food from buckle cavity towards stomach. Contraction and relaxation of muscles mainly in the oesophagus |
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| 67485. |
Define peristalti movements |
| Answer» Peristalsis is a series of wave-like muscle contractions that moves food to different processing stations in the digestive tract. Peristalsis concludes in the large intestine where water from the undigested food material is absorbed into the bloodstream. | |
| 67486. |
Why do we classify elements? Explain with reason? |
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Answer» One more question answer that also at up........ We mainly classify the elements to make their study more systematic and easy. There r a large number of elements found in nature so to study them separately is quite hard. To study them proficiently classification of elements is important. This helps us to understand how different elements form different compounds. |
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| 67487. |
Why do magnetic fields lines not intersect each other? |
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Answer» They do not intersect because if they did means compass neddle will show 2 different directions which is not possible. Yur most wlcm.....? Yaa.... Thank u.. ☺️☺️ The magnetic field lines do not intersect with each other because the resultant force on a north pole at any point can be only in one direction...... Hope it will help yu☺☺ |
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| 67488. |
Explain Fleming\'s left and right hand rule |
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Answer» \xa0Fleming’s left hand rule: It is used to identify force on a wire carrying current in a magnetic field. Stretch the first three fingers of the left hand mutually perpendicular to each other such that the forefinger points in the direction of magnetic field, the middle finger points in the direction current, then the thumb will indicate the direction of force experienced by the conductor.Fleming’s right hand rule : Fleming’s right hand rule states that if we stretch the thumb, middle finger and the forefinger of our right hand mutually perpendicular to each other, if the forefinger indicates the direction of the magnetic field and the thumb indicates the direction of motion of conductor, then the (central) middle finger indicates the direction of induced current in conductor coil placed in the magnetic field. If we catch a current carrying wire in left hand then thumb shows motion and the the finger joint to thumb shows the direction of magnetic field and the finger next to this finger shows the direction of current and same for right hand rule |
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| 67489. |
what is the municipal corpation |
| Answer» \tThe General Council: The members of the General Council are elected on the basis of Adult Franchise by all the adult citizens that are registered voters in a particular Municipal area. These members are known as Municipal Councillors. The size of the Council varies depending on the population of the city that is determined by the State government. Seats are reserved for the Scheduled Castes and Tribes in proportion to their population and also one-third of the total number of seats are for women. Some important and respected people of the city are nominated by the Governor to be elected as Council members. The Council also appoints many other members except the Municipal Commissioner.\tThe Mayor: The Mayor is considered as the head of the Municipal Corporation. He is elected by the Aldermen and the members of the Council from among themselves. He is elected for a period of one year but can be elected again annually for the full term of the Cooperation. He is known as the ‘First Citizen’ of the town.\tStanding Committee: Through this Committee, the General Council performs its various functions. There are different Standing Committees dealing with various subjects - finance, taxation, health, education services, engineering, welfare schemes, development works, and planning for economic development, etc.\tMunicipal Commissioner: The Municipal Commissioner is the Chief Executive Officer. He is elected for a term of five years by the State or the Union Government, as the case may be. | |
| 67490. |
name two plants which is hetrotrophs? |
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Answer» Pitcher and venus fly trap these2 plants are hetrotropic ....but acording to me these do photoshenthesis also so why not consider autotropic... Picture plant, venus fly trap, sundew, butterwort.... See info Google. But from my side all are autotrophic Pitcher plant and Venus fly trap |
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| 67491. |
What do yu mean by allopatric speciation and sympatric speciation......... |
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Answer» Allopatric speciation - a mode of speciation that occurs when biological population of same species become isolated from each other to an extent that prevents the gene flow Yr, mere question ka answer bhi de do....... |
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| 67492. |
What is the function of plateet cells in blood |
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Answer» They closes the leaked passage .If not the blood pressure decreases as the pressure made by heart is let out in leaked passage and person may die if platelets are not there. To help in blood clot and they form a barrier to stop excess blood loss . Platelet cells are present in the body to plug the leaks and to stop bleeding by clotting the blood at the points of injury.Platelets circulate around the body and clot the blood whenever wherever necessary. To prevent clooting of blood |
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| 67493. |
What is the formula for alkaline alkine |
| Answer» | |
| 67494. |
what happens to potential difference if resistance double |
| Answer» It also doubles | |
| 67495. |
What are the isotopes of hydrogen |
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Answer» Number of molecules of hydrogen is called isotopes Hydrogen is the first element in the periodic table and has the atomic number one. Those elements which have the same atomic number but a different mass number are called isotopes. There are three isotopes of hydrogen namely, protium 1H1, deuterium 1H2 or D and lastly tritium 1H3 or T. Deuterium tritium |
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| 67496. |
How to calculate genotypic and phenotypic ratio. Explain plzzz??? |
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Answer» Dont know Genotype are genetic composition of each genePhenotype is external appearance of the characters.In a monohybrid cross phenotype is 3:1 and Genotype is 1:2:1 |
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| 67497. |
What is third law in heredity .Explain plzzz???? |
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Answer» The three laws given by Mendel are:i. Law of dominance - According to this law, when a cross is made between two homozygous individuals, only one of the two characters of the pair (dominant) appears in the F1 generation. There is the appearance of both the characters in F2 generation.ii. Law of segregation - This law states that the characteristics of an organism are determined by the internal factors which occur in pairs. Only one of a pair of such factors can be present in a single gamete.iii. Law of independent assortment - This law states that in the inheritance of more than one pair of traits in a cross simultaneously, the factors responsible for each pair of traits are distributed independently to the gametes. Law of independent assortment...which means both the characters are independent of each other.. |
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| 67498. |
What is second law in heredity |
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Answer» Independent assortment it is also known as Mendel\'s second law Law of segregation |
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| 67499. |
What is first law in heredity |
| Answer» Law of dominance | |
| 67500. |
What do yu mean by silviculture.......... |
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Answer» Silviculture is the practice of controlling growth, composition, health and quality of forest to meet the diverse needs and values Honey dost kis pind se ho ji satriyakal Forezt ke barrre mein janana ,thoda explain ho gya. Study on forest Forest science |
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