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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.
| 6301. |
How we can separate tea form tea leaves |
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Answer» Seperation Tea leaves from tea by filtration. As tea granules are smaller than the leaves, it can be separated by filtration such that the granules pass through, and leaves are left behind. Also, handpicking of the leaves may be used to separate them as well, under some conditions. With seive |
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| 6302. |
Why do engines need fuels like petrol and diesel?? |
| Answer» When your car need fuel you need gasoline just like your body convetrs food into energy,a car engine contain gas imto motion. Some newer cars known as high birds also use electricity.this process os called internal combustion. | |
| 6303. |
Do all stars in the sky move |
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Answer» Yes She is correct No, stars do not move. But they appear to be moving because of eath\'s rotation on its axis and its revolution around the sun |
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| 6304. |
Explain eutrophication |
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Answer» The nitrogen in the water is reduced due to the exessive growth of algae as a result of extra loading of nutrients it is called eutrophication \tThe presence of excessive nutrients in the lake due to agriculture run -off from the land, cause the growth of plant life in water body. Fertilizers contain phosphates that increase algae growth in water.\tAlgae cover the surface of water, blocking sunlight and depleting oxygen in the water.\tThe reduction of oxygen concentration in water causes the death of many aquatic organisms.\tThis process of rapid plant growth in water and the depletion of oxygen causing the death of animals results in a disfunctioning ecosystem, called eutrophication. Dont know |
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| 6305. |
How to fond no of moles |
| Answer» A mole of a defined substance is defined as the mass of that substance containing the same number of fundamental units just like atoms in 12.0 g of 12C. These fundamental units can be atoms, molecules, or formula units based on the substance. It represents the number of chemical elements.One mole of any substance is equal to the Avogadro number whose value is 6.023 x 1023. It can be used to measure the products in a chemical reaction. The unit is defined denoted by mol.The number of moles formula is given bynumber of moles = mass of substance/ mass of one mole | |
| 6306. |
A train starting from rest attained a velocity of30m/s in 30 minutes. What is the acceleration ? |
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Answer» as u=0v=atv=30 m/s=30 x60=1800 m/minso a=v/t=1800/30=60 m/min sqr Given :Initial Velocity = u = 0m/sFinal velocity= V= 30 km/hTime = 30 min =1/2 h\xa0acceleration=a=?As we know that , a=v-u/t⇒a=30 - 0/1/2=30× 2= 60 km/h² |
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| 6307. |
What is ceaseless motion |
| Answer» \tCeaseless means perpetual or never ending.\tCeaseless motion would mean motion without stopping.\tExample: Movement of planets | |
| 6308. |
What is the meaning of NEMATODA |
| Answer» Nematoda\tThe bodies of the organisms belonging to this group are bilaterally symmetrical and triploblastic.\tThe body of these organisms is cylindrical.\tThese organisms have tissues but no real organs.\tThey have body cavity or a pseudocoelom in their body.\tExamples of animals belonging to this group are Ascaris, Wuchereria. | |
| 6309. |
Write some eg to explain inertia? |
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Answer» In a qualitative way, the tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called inertia.Example 1: We tend to remain at rest with respect to the seat until the driver applies a braking force to stop the motorcar due to the inertia of motion.Example2: The dust particles fly away from the blanket when we jerk it due to the inertia of rest. If an object in motion then it will wants remain in motion and its natural tedency , that it regist to change its state |
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| 6310. |
What are the important questions from all chapter |
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Answer» 4 2+2 |
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| 6311. |
Difference between sol and gel. Give example of each. |
| Answer» Sol has solid and liquid as dispersed phase and medium respectively eg starch sol and gold sol. where as gel has liquid and solid as dispersed phase and medium respectively eg jelly ,cheese, butter | |
| 6312. |
Derive equation law of conservation of momentum |
| Answer» | |
| 6313. |
Why lysosome is called suicide bag ? |
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Answer» Lysosomes is a organelle in the cell which contain digestive enzymes. If the cell gets damaged the lysosomes release the digestive enzymes these enzymes then clean the cell so lysosome s are called sucidal bags of the cell. lysosomes are organelles which cleans our cell, when the cell got damages lysosomes goes against our cell and releases toxic enzymes, which make our cell die leading to suicide of cell Cause it kill the non usaable thigs which harmfull for us and after killing them it dies |
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| 6314. |
What exactly is time dilation?? |
| Answer» | |
| 6315. |
Applications of sonar |
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Answer» The SONAR method is also called echo ranging. This technique is used to determine the depth of the sea and to locate underwater hills, valleys, submarine, icebergs, sunken ship etc. Used in ships and submarine to check obstacle under water |
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| 6316. |
Write the characteristics of sound and explain it? |
| Answer» Following are the main characteristics of sound wave:\tWavelength : Wave length is the length between two consecutive peaks, i.e. crest or two consecutive valleys, i.e. trough of a wave. Wave length is represented by Greek letter λ (lambda). Louder sound has shorter wavelength and softer sound has longer wavelength. The SI unit of wavelength is metre (m).\tAmplitude : Magnitude of maximum disturbance on either side of the normal position or mean value in a medium is called amplitude. In other words, amplitude is the distance from normal to the crest or trough.\tTime period: Time required to produce one complete wave is called time period or time taken to complete on oscillation is called the time period of the sound wave. In other words, time in which a wave moves a distance equal to its wavelength is called time period.\tFrequency: The number of sound waves produced in unit time is called the frequency of sound waves. For example, if a source of sound produces 20 sound waves in one second then the frequency is 20 Hz.\tSpeed | |
| 6317. |
What are the example of thomson modle |
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Answer» Plum pudding Water melon Water melonChristmas pudding |
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| 6318. |
Important questions for annual examination |
| Answer» All questions | |
| 6319. |
Why is rabies caused |
| Answer» Rabies is caused due to rabies virusAnd its vector are most of the wild animal\'s bite such as dogs ?, rat etc... | |
| 6320. |
Ch tissue pbq question |
| Answer» | |
| 6321. |
Ch tissue What is the different between notochord and Nervechord |
| Answer» Notochord is the initial stage of nervechord which disapear after a certain age period in some organism while develop as nervechord or backbone in other organisms | |
| 6322. |
Who discovered nucleus ????? |
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Answer» Robert Brown Ok Ernest Rutherford |
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| 6323. |
What is the percentage composition of the elements in ammonia nh³ (n=14 ,h=1 |
| Answer» | |
| 6324. |
How is heating of sugar and ammonium chloride different from each other? Explain |
| Answer» Sugar gets charred to dryness or may even burn with a sugary smell on heating, whereas ammonium chloride gets sublimed on heating. | |
| 6325. |
Give a method to separate different gases of air? |
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Answer» Separation of components of air by the process called fractional distillation: In this process, air is liquefied under high pressure. Then it is boiled and depending upon the boiling points of fractions (gases), the components are separated. Fraction distilation Fractional distillation |
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| 6326. |
I am back someone bannd me i dont know that ............... man i am crazy boy |
| Answer» | |
| 6327. |
How many electrons are present in na+ |
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Answer» As u see in neutral there is 11 but in +Na 10 10 electrons becauce it is an ion 11elctrons |
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| 6328. |
What are CFC ? |
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Answer» Chloro floro carbon Chlorofluro carbons are that carbon which harm the ozone layer the ozone layer protect us from the harmful chemicals radiations which come from the sun. It causes many skin infection. Cloro floro carbons |
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| 6329. |
What is a negative work |
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Answer» If work done opposite to direction of motion If the force has a component in the direction opposite to the displacement ,the force does negative work. |
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| 6330. |
What is the si unit |
| Answer» SI refers to "Systeme International".SI unit is the standard unit of any physical quantity. | |
| 6331. |
What is the use of the valence electrons |
| Answer» They help in chemical reaction | |
| 6332. |
Give the reason when a car stops suddenly the patient in it tend to move forward |
| Answer» Due to inertia of motion Because when the car will in motion then passenger will also in motion then due to inertia of motion it will want to remain in motion 3if car will stop suddenly passenger will come forword | |
| 6333. |
Write two isotopes of hydrogen |
| Answer» There are actually three: protium, deutrium and tritium. | |
| 6334. |
What is water table |
| Answer» Check that in ur science NCERT book.......in the chapter \'natural resources\' | |
| 6335. |
Which important species of cow is imported from England |
| Answer» Karan swiss or Karan fries. | |
| 6336. |
Describe Ruther ford elements |
| Answer» Gold foil that was 1000 atom thick , alpha rays, detector | |
| 6337. |
What mass of nitrogen will contain same number of molecules as 1.8 gram of water |
| Answer» 1.4g | |
| 6338. |
What is rrr of water bodies |
| Answer» I think the dead body of in the river is called rrr of water bodies..... | |
| 6339. |
What is endocytosis |
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Answer» Endocytosis bring the material inside cell from outside. Endocytosis is a process in which amoeba takes its food The taking in of matter by a living cell by invagination of its mambrane to form a vacuole |
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| 6340. |
Explain nitrogen cycle formation |
| Answer» Nitrogen cycle - the nitrogen in atmosphere in N2 firm get converted into its oxides NO3 &NO3 ( NITROGEN FIXATION) by industries ,some bacteria ( rizobium , azatobactor)and by lightning .The NO2 AND NO3 are absorbed by plants and makes many nitrogenous compounds (proteins , amino acids etc) these compounds goes to animals when they eat it and it comes out when they excreate. In soil, bacteria converts this NO2 AND NO3 into ammonia(NH4) (AMMONIFICATION) this ammonia tends to N2 FIXATION BY SOME BACTERIAS and by DENITRIFIACTION NO2 AND NO3 GET converted into N2 again | |
| 6341. |
Transformation of energy |
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Answer» Energy can neither be created or nor be destroyed in chemical reaction only convert in one form to another Energy can nither be created nor destoryed but it can be transformed .For example when we light a bulb the electrical energy get tranformed into heat energy. Book me hsi |
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| 6342. |
Derivation of all laws of newton |
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Answer» Newton\'s first law of motion :Law of inertia which states that if a object is at rest it will remain at rest and if an object is in motion it will remain in motion untill an external force is applied on body.Newton\'s second law of motion : Rate of change of momentum is directly proportional to the applied force and takes place in the direction in which the force acts. It gives relation between force and acceleration and tells that :Force is the product of mass and acceleration (F=m×a)Newton\'s third law of motion :To every action there is equal and oppossite reaction. Book me hai |
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| 6343. |
What is a test tube |
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Answer» It is a vessel in which different type of solution or substances mix or combine for check. It is found in laboratory. A thin glass tube is used to chemical experiment and a test tube also known as culture tube |
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| 6344. |
what is the work done by the force of gravity on a Satelite moving around the earth |
| Answer» If an object\'s kinetic energy or gravitational potential energy changes, then work is done. The force can act in the same direction of motion. Or, the force can act against the motion. ... In general, the energy transferred depends on the amount of force and the distance over which that force is exerted. Work done=Force x DisplacementWork done = (mg) x d | |
| 6345. |
Difference between Adipose And Areolar?(2 difference) |
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Answer» Adipose tissue helps in the storage of fat whereas areolar tissue connects the organs together by absorbing shock Adipose tissue helps in joining the skin to muscles.While areolar tissue helps in storage of fat . |
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| 6346. |
Name two protective tissue present in plants. |
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Answer» Epidermis and Cork cells Epidermis And cork cells |
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| 6347. |
Mention the role of collenchyma in the leaf. |
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Answer» It provide flexibility to plant which enable the plant to bend without breaking. Present at margins of leaves and resists the tearing effect Storage of food.Give mechanical strength to plant. it gives mechanical support to leaf or plant |
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| 6348. |
Define mass by mass percentage. How much water should add to 15g of salt to make 15% salt solution? |
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Answer» How❓ 85g must be added What |
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| 6349. |
Water is a compound. Give three points to support this statement |
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Answer» Water is a compound because its constituting elements always maintain the fixed ratio of 1:8 whatever may be its source. The composition is uniformly all through the same. What sorry sir please completely the answer It is pure.Ratio is not fixed.Made up of two or more elements. Sorry Quit |
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| 6350. |
What is farming |
| Answer» Farming is the act or process of working the ground, planting seeds, and growing edible plants. Farming is growing crops or keeping animals by people for food and raw materials. | |