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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.
| 10601. |
Explain advance sunrise and delayed sunset ? |
| Answer» Because when sun is slightly below the horizon the sunlight coming from densor to more densor air refracted downward.Because of this sun appear to be raised above the horizon .so rising of sun can be seen before two minutes . Similarly due to atmospheric refraction the sunrise is seen after two minute even after the sun set beliw the horizon | |
| 10602. |
What is autotrphs |
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Answer» Autotrophs prepare thein own food They do photo synthesis \tAutotrophs can prepare their own food from simple inorganic sources like carbon dioxide and water. Example - green plants and some bacteria. Autotrophs prepare their own food Those who prepare their own food |
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| 10603. |
Explane the work of eleactric generater. |
| Answer» In an electric generator, mechanical energy is used to rotate a conductor in a magnetic field to produce electricity. An electric generator consists of a rotating rectangular coil ABCD placed between the two poles of a permanent magnet. The two ends of this coil are connected to the two rings R1 and R2. The inner side of these rings are made insulated. The two conducting stationary brushes B1 and B2 are kept pressed separately on the rings R1 and R2, respectively. The two rings R1 and R2 are internally attached to an axle. The axle may be mechanically rotated from outside to rotate the coil inside the magnetic field.Outer ends of the two brushes are connected to the galvanometer to show the flow of current in the given external circuit. When the axle attached to the two rings is rotated such that the arm AB moves up (and the arm CD moves down) in the magnetic field produced by the permanent magnet. Let us say the coil ABCD is rotated clockwise. By applying Fleming’s right-hand rule, the induced currents are set up in these arms along the directions AB and CD. Thus an induced current flows in the direction ABCD. If there are larger numbers of turns in the coil, the current generated in each turn adds up to give a large current through the coil.This means that the current in the external circuit flows from B2 to B1. After half a rotation, arm CD starts moving up and AB moving down. As a result, the directions of the induced currents in both the arms change, giving rise to the net induced current in the direction DCBA. The current in the external circuit now flows from B1 to B2. Thus after every half rotation the polarity of the current in the respective armschanges. Such a current, which changes direction after equal intervals of time, is called an alternating current (abbreviated as AC). This deviceis called an AC generator. | |
| 10604. |
Explane the working of eleactric moter. |
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Answer» An electric motor is a rotating device that converts electrical energy to mechanical energy. Electric motor is used as an important component in electric fans, refrigerators, mixers, washing machines, computers, MP3 players etc. An electric motor consists of a rectangular coil ABCD of insulated copper wire. The coil is placed between the two poles of a magnetic field such that the arm AB and CD are perpendicular to the direction of the magnetic field. The ends of the coil are connected to the two halves P and Q of a split ring. The inner sides of these halves are insulated and attached to an axle. The external conducting edges of P and Q touch two conducting stationary brushes X and Y, respectively. Current in the coil ABCD enters from the source battery through conducting brush X and flows back to the battery through brush Y. Notice that the current in arm AB of the coil flows from A to B. In arm CD it flows from C to D, that is, opposite to the direction of current through arm AB. On applying Fleming’s left hand rule for the direction of force on a current-carrying conductor in a magnetic field. The force acting on arm AB pushes it downwards while the force acting on arm CD pushes it upwards. Thus the coil and the axle O, mounted free to turn about an axis, rotate anti-clockwise. At half rotation, Q makes contact with the brush X and P with brush Y. Therefore the current in the coil gets reversed and flows along the path DCBA. A device that reverses the direction of flow of current through a circuit is called a commutator. In electric motors, the split ring acts as a commutator. The reversal of current also reverses the direction of force acting on the two arms AB and CD. Thus the arm AB of the coil that was earlier pushed down is now pushed up and the arm CD previously pushed up is now pushed down. Therefore the coil and the axle rotate half a turn more in the same direction. The reversing of the current is repeated at each half rotation, giving rise to a continuous rotation of the coil and to the axle. In an electric generator, mechanical energy is used to rotate a conductor in a magnetic field to produce electricity. An electric generator consists of a rotating rectangular coil ABCD placed between the two poles of a permanent magnet. The two ends of this coil are connected to the two rings R1 and R2. The inner side of these rings are made insulated. The two conducting stationary brushes B1 and B2 are kept pressed separately on the rings R1 and R2, respectively. The two rings R1 and R2 are internally attached to an axle. The axle may be mechanically rotated from outside to rotate the coil inside the magnetic field.Outer ends of the two brushes are connected to the galvanometer to show the flow of current in the given external circuit. When the axle attached to the two rings is rotated such that the arm AB moves up (and the arm CD moves down) in the magnetic field produced by the permanent magnet. Let us say the coil ABCD is rotated clockwise. By applying Fleming’s right-hand rule, the induced currents are set up in these arms along the directions AB and CD. Thus an induced current flows in the direction ABCD. If there are larger numbers of turns in the coil, the current generated in each turn adds up to give a large current through the coil.This means that the current in the external circuit flows from B2 to B1. After half a rotation, arm CD starts moving up and AB moving down. As a result, the directions of the induced currents in both the arms change, giving rise to the net induced current in the direction DCBA. The current in the external circuit now flows from B1 to B2. Thus after every half rotation the polarity of the current in the respective armschanges. Such a current, which changes direction after equal intervals of time, is called an alternating current (abbreviated as AC). This deviceis called an AC generator. |
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| 10605. |
Hello, kya sub ki science prepare ho gaye |
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Answer» Hii Ok Ha Haan ho to gayi hai. Phir se revise kar rahi hoon |
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| 10606. |
Name any two pollutants emitted from the vehicles |
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Answer» Hii . King Ashu Carbon dioxide and sulphur oxide. Hii Co2 and so2 |
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| 10607. |
What is light? Why it is useful for our life? |
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Answer» Light ch sucks Light is a form of energy.It playa very essential role in our life :-i) it is used in electronics |
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| 10608. |
Process of evolution of eyes |
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Answer» Hiii Raj teri science prepare jo gyi Shi bola raj ... Ashu bhai tum kaha ke toper ho .... Aur actor kon h my everything is dosa.. ??? Ye kon se actress h aur isko to tu follow bhi nhi krta Cbse Batao kon hai tumhare fav Tumne mera ans nhi diya ashu Every change had to confer a survival advantage, no matter how slight. Eventually, the light-sensitive spot evolved into a retina, the layer of cells and pigment at the back of the human eye. Over time a lens formed at the front of the eye jis ques p tm chat kr re? The first animals with anything resembling an eye lived about 550 million years ago. And, according to one scientist\'s calculations, only 364,000 years would have been needed for a camera-like eye to evolve from a light-sensitive patch. Kiska ans Kha ke topper .??? mera ans to btao ? Ha i am topper ???? Teri science prepare hai kya ashu Hii Hi Kha chuki hai ye uska bhoot ??????? Heeeeheeee tm to ja ri th poison lne????? |
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| 10609. |
What is electromagnatic induction. |
| Answer» Electromagnetic Induction or Induction is a process in which a conductor is put in a particular position and magnetic field keeps varying or magnetic field is stationary and a conductor is moving. This produces a Voltage or EMF (Electromotive Force) across the electrical conductor. | |
| 10610. |
homologus organs |
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Answer» Structure are same but function are different Similar structure but different functions Ok Are khana khane bye the bhai Ab kuy meine to reply kiya na Khusi phir gussa ho gyi Have same in appearenc e but performs various function |
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| 10611. |
Why arteries are thick wall |
| Answer» Because blood pressure is more in arteries as compared to veins | |
| 10612. |
Main points of Darwin theory |
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Answer» Nhi hu sad bs mikku ke bare me soachbraha tha kyu vo odometer ki reading vale ques ate tme bhai Nhi hu sad sis Nahi hu sad why are u so sad bhai Galat fas gya tu Ok thnk ???? It\'s ok ab hm jo ques puch rae uska jabab dna thk. ? Srry apne bhai ko maaf kr do Srry khusi kya hua Bde jaldi yad a gai Survival of the fitest Natural selection Khusi gussa ho mera se |
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| 10613. |
Why is iodised salt advisible? |
| Answer» As it reduces chances of thyroid and goitre | |
| 10614. |
2gm of ferrus sulphate crystal are heated in a dry hoiling tube.. list any two observations |
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Answer» (i) Ferrous sulphate is reduced to ferric oxide.(ii) Sulphur oxide and sulphur trioxide gases are liberated. Pta hai aisi bola mjal to smja kro feelings nhi smjte to Changes colour from green to white Nhi dost h Yeh ashu apka bhai N water droplets on mouth of test tube Smell of burning sulphur n change in colour smell of sulphur come It colour changes to white... Sulphur dioxide and sulphur trioxide is released.... Ferric oxide are happen and smell of burning sulphur |
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| 10615. |
Which part of pancreas act as endocrine gland |
| Answer» The pancreas is divided into an exocrine portion (acinar and duct tissue) and an endocrine portion (islets of Langerhans). The exocrine portion, comprising 85% of the mass of the pancreas, secretes digestive enzymes, water and NaHCO3 into the duodenum | |
| 10616. |
Whare are nephrons |
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Answer» A nephron is the basic unit of structure in the kidney. A nephron is used separate to water, ions and small molecules from the blood, filter out wastes and toxins, and return needed molecules to the blood Nephrons r present in kidneys Mere vidhyarthiyo ne sahi utar diya hai Functional unit in kidneys It is a filtration unit..... |
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| 10617. |
What are chalcogens ❔❓ |
| Answer» | |
| 10618. |
What is photolysis? Please guys explain me.?????? |
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Answer» The splitting of hydrogen and oxygen molecules from water in the presence of sunlight during photosynthesis. Bolo Mic testing 1 2 3 Hlo Hlo Mai toh use relax kr ri thi taki vo tension na le????? Pdo tb?????? Ayega ayega apna tym ayega???? Ayega Kajal aapko cbse ni pta kya kabhi bhi kuch bhi kr skta hai??? Ye bhi ni ayega itna mt pda bhai??? Like as AgBr decomposes in sunlight Decomposition by light |
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| 10619. |
What is the difference between trophic and nastic movement? |
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Answer» Trophic is growth movement and nestic is not a growth movement Trophic movement (towards stimulus)Nastic movement (away stimulus) |
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| 10620. |
Can anyone describe the contribution of lamarck?? ? |
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Answer» nahii New one ? Payal aap wahi payal ho jo pehle aati thi? Aa jayega ??? Net khtm ho gya kya search mar lo To kro tb Question Ye kya hai |
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| 10621. |
how does resistance change with the increase in temperature?? |
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Answer» Resistance is directly proportional to temperature. Kk bro Abhi papa h Ok aj raat ko laga dunga To tum apni lgao i want to see you Sachi sry bro Hm aj apna pic upload kr denga ok Han aisa lg ra tha rone wala hoga Nhi phr jhuth Woh mera frnd sekhar h jo duniya mein nhi h ab Woh mai nhi hu hm ni chalate kuch.. bhai Kaha gyi But rowndu type k dikhte tm bhai?? Aap hi the vo blue shirt ashu suno Apna id batayo sab To kya hua Ya mene BH dkhi Hai h id Aap hi the vo blue shirt Sry ashu ko khe ri hun Srry sis thnk Vaise adhu suno aap ki id insta pe kingkohliashu hai na Koi ni sis hmne hi advice di aur hme hi bhul gye.. gnde bhai Kya hua kuy ro rhi ho |
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| 10622. |
Differentiate between fertilization and germination |
| Answer» The fusion of male and female gamate to form zygote is known as fertilization.... The process of developing a new plant from the seed is known as germination... | |
| 10623. |
How to find resistors.? |
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Answer» It is ohm\'s law. V=IR,Where, V is voltage,I is current and R is resistance |
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| 10624. |
Hey, do basic, aa jao, sol. Also have ,online kb aoge, h+ions if yes aa jao why are they basic |
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Answer» Meri sarai behene ayigi Ha padh liya Ooo ye aisa hi hai Sb pd liya apne ashu Ashu lgta hai pd liya sb ashu bhai n mujhe ni bulaya.? Puchu Kya hua Kyun ro rhi ho bhen Ha pucho Pd liya sbne Kya hua Khushi Heyyyyyyyy Kaun???? Hlo Kya hua khusi Aseem bro ...??? ? Ashu?????? .. Pehchana? Abhi rat bhar h Hlo gnde bhai?? hme ni bulaya.. Mst chal rhi h apna batayo But ab itne kam time me kaise ready karu....???. ??????? Hello adya Ok adu Han to tyari axi rkho??? Yeh??? What is this...??? ??kha se ye question lekar aayi ho...aise question exam me aa gye tbb to mai fail ho jaungi ???????????? Woh nice tarika Sidhe ni pucha ban hone khatra hai????? Kb aoge online Hii yes h+ions wil; come basic? Kehena Kya Chahte Ho? |
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| 10625. |
Can heart diagram come?? |
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Answer» Yup use s chand for a easy one Yes Yes, but I think that the excretory system diagram and the female copulatory organ diagram have more chances to come. Yes its important obviously Yes |
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| 10626. |
C9H18 is called?? |
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Answer» Nonene will be the name of given compound. Nonene It\'s cyclononane Nonene ? |
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| 10627. |
What is the common name of METHANAL ? |
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Answer» Formaldehyde will be the common name of methanal. Formaldehyde formalaldehyde Formaldehyde FORMALDEHYDE Oh sorry...maine methanol ka bataya ???? Methyl alcohol....... |
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| 10628. |
What make the food acidic in stomach |
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Answer» Hydrochloric acid Hydrocloric acid make the food acidic in stomach. Hydrochloric acid will be make it acidic in stomach HCl.... |
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| 10629. |
Process of urine formation\'?? Bta do ?? |
| Answer» There are three main steps of urine formation: glomerular filtration, reabsorption, and secretion. These processes ensure that only waste and excess water are removed from the body. | |
| 10630. |
In sperm where did mitochondria occurs |
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Answer» They located in mid piece of sperm. I think in sperm tail |
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| 10631. |
What is exothermic process |
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Answer» It is the process in which the heat energy is released Lovely The process in which heat is evolved along with the formation of products. It is the process in which heat is released |
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| 10632. |
What is the formation of the acid and base and neutral |
| Answer» \tThe reaction between an acid and a base to form salt and water is called a neutralisation reaction.\tAn acid is a substance which dissociates (or ionises) when dissolved in water to release hydrogen ions.\tA base is a substance which dissolves in water to produce hydroxide ions [OH-ions]. | |
| 10633. |
Mam name some very important diagram for boards |
| Answer» | |
| 10634. |
Nephron drawing |
| Answer» | |
| 10635. |
Science blueprint |
| Answer» | |
| 10636. |
Physical properties of non-metal |
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Answer» Low melting point and boiling pointNon sonorus Low melting , boiling points Non sonorous Physical properties of non-metals\tNon-metals may be either solids, liquids or gases.\tSolid non-metals are brittle and break down into powdery mass on striking with a hammer except diamond which is the hardest non-metal.\tThey have a dull luster but iodine is lustorous.\tThey have low melting points except diamond that has very high melting point.\tThey are poor conductors of heat and electricity except graphite.\tThey are not malleable.\tThey are not ductile.\tThey are not sonorous.\tExamples are carbon, Sulphur, oxygen, phosphorous and many more. Non malleable , non ductile, low tensile strength , poor conductivity, brittle, no metallic lustre |
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| 10637. |
Which group is chalcogens❔❓ |
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Answer» Yup Ohhkk shukriya... ?? Tension na lo.. relax Yep Group 16 ??? |
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| 10638. |
The si unit of resistivity is |
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Answer» ?ye khalo dhi mat khana Ohm metre Ohmic - metre (Ωm) is the right answer .. Ohms Pure year pada hai to sb accha hi hoga Arre tension ni lo .. just chill Bhuttt tension ho rhi.. Mera bilkul bhi mudd ni kr rha padhne ka??? Maine bio ni dekha ???? Mne to kuch ni pda?? Dimag ka dahi ho gyA h Koi baat ni zainab ho jata hai Sorry. Ohn metere... mho Ωm(ohm metre) Rho.. |
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| 10639. |
what is chipkomoment |
| Answer» Chipko Andolan (‘Hug the Trees Movement’) was launched by the people of Reni in Garhwal in the early 1970s and was spread headed by Sunder Lal Bahuguna. The Chipko Andolan was the result of a grassroot level effort to end the alienation of people from forests. The movement originated from a dispute between the local villages and are logging contractor who had been allowed to fell trees in a forest close to the village. On the specific day the forest contractors workers appeared in the forest to cut the trees while the men folk were absent. The woman of the village reached the forest quickly and clasped the tree trunks with their arms , thus preventing the workers from felling the trees. The forest trees were saved and the contractor had to withdraw. | |
| 10640. |
Why group 1st elements is known as unpostive ions ? |
| Answer» Where did u get this q from | |
| 10641. |
How do pupil work? |
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Answer» It is controlled by cerebellum It control the intensity of light and control by iris Pupil controls and regulates the amount of light entering the eyes. When we enter into a dark room the size of the pupil increases and we enter into room with bright light then the size of the pupil decreases |
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| 10642. |
Tyndall Effect kya h |
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Answer» Text bk me hai dekh, check kar Colloidal solution me se jab light pass hiti hai use tyndall effect kehte hai. Ex. Dark room mein ek hole me se sun light pass hiti hai tab dust particlws dikhte hain. |
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| 10643. |
What is trophism |
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Answer» difference between pepsin and trypsin Answer Like animals plants also shows movements. The movement of plant in the direction of stimulus is knows as tropic movement. Plants show two different types of movements, one is independent of growth and the other is dependent on growth.\tThe movement of a plant part in response to light is called phototropism\tThe movement of a plant part in response to gravity is called geotropism.\tThe movement of a plant part in response to chemicals is called chemotropism.\tThe movement of a plant part in response to water is called hydrotropism.\tThe directional movement of a plant part in response to touch of an object is called thigmotropism. |
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| 10644. |
Speciation?in simple words |
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Answer» Formation of new species from existing ones Diku mushkil ni hai ... samajke kro asaani se yaas ho jayenge ... aur apni language m answer kr skte hai Areh....bss definition usse learn karna na usme thoda easy h ?btw...ye chapter to mujhe bhi sbse ghatiya lagta h ??? Side book se definition learn kar lo...maine bhi usi se kiya h ? Kuun kaun sa...??? The process of formation of new species from the existing ones is known as speciation.... |
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| 10645. |
Electric Fuse high resistance or low resistance..?? |
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Answer» Low melting point and high resistance no....after exams 10th hoga ??fir hum clg m jayenge Sorry....high resistance ? Low resistance ? Bhai aapka 10th khatam hogaya kya?? |
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| 10646. |
Evolution and vlassification of organism are interlinked .give reason to justify this statement |
| Answer» Classification of organisms is based on relative similarities and differences among organisms. resemblances in organisms are because they have arisen from a common ancestor and differences in them are due to adaptations to different types of environment. as the organisms can be graded in order of increasing complexity it indicates at the concept of evolution. | |
| 10647. |
Deffrentiate between autotrofic and hetrotrofic nutrition |
| Answer» \tAutotrophic NutritionHeterotrophic NutritionIn autotrophic nutrition, organisms prepare their own foodIn heterotrophic nutrition, organisms do not prepare their own foodAutotrophs are the producers in the food chainHeterotrophs are the consumers in the food chainAutotrophs use simple substances from surroundings to produce foodHeterotrophs consume organic compounds produced by the autotrophsExample: Plants and some algaeExample: Animals and some plants\t | |
| 10648. |
Kya physics ke physicst ke naam bhi yaad karne hain jaise AndreMarie |
| Answer» Nhiiiii...... | |
| 10649. |
Lab manual questions will come or not as per cbse |
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Answer» But not as a particular sexon Yes. |
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| 10650. |
How does inanimate matter tell us that life has originated from organic matter |
| Answer» The life was iriginated in the sea water.Thw theory of otigin of life on earth ptoposed by Haldane was confired by experiment.This was maintained at a temperature just below 100°c.Which make life for live. | |