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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.
| 5801. |
Give function of antibiotic penicillin |
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Answer» It prohibit thr growth of bacteria inside the human body. Antibiotic penicillin destroy the cell wall of the bacteria |
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| 5802. |
Explain how, a karate player can break a pile of tiles with a speed of 5m/s. |
| Answer» By moving his hand with high velocity he acquires high momentum and then he breaks the piles. | |
| 5803. |
Write the information of gmrt? |
| Answer» | |
| 5804. |
In which water easier to swim sea water or fresh water. Why8? |
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Answer» Sea water because sea water is more denser then fresh water so object will experience more upthrust then in on fresh water and it will be easier to swim. In sea water because sea water contains salt that\'s why it is heavier than fresh water and it pulls the person who is swimming in the sea water Fresh waterBecause sea water ? has more amount of particles (salt) |
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| 5805. |
What is Plasmolisis???? |
| Answer» When a living plant cell loses water through osmosis, there is a shrinkage or contraction of the protoplasm away from the cell wall. This phenomena is called plasmolysis. | |
| 5806. |
Nyc |
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| 5807. |
.Mam I say which formula motion chapter |
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| 5808. |
Explain the following giving examples.a) saturated solutionb)pure substancec) colloidd)suspension |
| Answer» A) a solution in which no more solute can be dissolved in the solvent. B) A pure substance or chemical substance is a material that has a constant composition (is homogeneous) and has consistent properties throughout the sample.C) A colloid is a heterogeneous mixture whose particles are not as small as solution but they are so small that cannot be seen by naked eye.D) A suspension is a heterogeneous mixture in which solids are dispersed in liquids. The solute particles in suspension do not dissolve but remain suspended throughout the medium. | |
| 5809. |
Write short note on Porifera |
| Answer» \tThey are primitive animals.\tThey are generally multicellular organisms with specialised cells but these cells do not group together to form tissues.\tMost of them are marine, i.e., found in the seas. Some of them are also found in ponds and rivers.\tThey possess pores all over the body.\tReproduction can be by both sexual and asexual methods.\tSensory system is absent.\tMouth and **** are absent.\tA distinct canal system with inlets and outlets for water circulation inside the body is present. They obtain food and oxygen by means of water. The collar cells filter out food particles from the water current flowing through the canal system.\tExamples are:\xa0Sycon, Spongilla and Euplectella. | |
| 5810. |
Compare the properties of electrons ,protons and neutrons . |
| Answer» \tElectronProtonNeutron(i)Electrons are present outside the nucleus of an atom.(i)Protons are present in the nucleus of an atom.(i)Neutrons are present in the nucleus of an atom.(ii)Electrons are negatively charged.(ii)Protons are positively charged.(ii)Neutrons are neutral.(iii)The mass of an electron is considered to negligible.(iii)The mass of a proton is approximately 2000 times as the mass of an electron.(iii)The mass of neutron\xa0is nearly equal to the mass of a proton.\t | |
| 5811. |
Electron is also known was earlier time.. |
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| 5812. |
state the principle on which separating funnel works |
| Answer» Seperating funnel works on the principle of differnce in densities of two immiscible liquids. Eg:- oil and water | |
| 5813. |
What is a formula unit mass? Explain with an example |
| Answer» It is the sum of the atomic masses of all atoms present in a formula unit of a compound.Example : formula unit mass of sodium chloride ( NaCl) = 1*23+1*35.5=58.5u | |
| 5814. |
What does small value of G indicates? |
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Answer» Universal gravitation constant 9.8m/s2 |
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| 5815. |
What is the nature of distance time graph for uniform and non - uniform motion of an object ? |
| Answer» (a) The slope of the distance-time graph for an object in uniform motion is straight line.(b) The slope of the distance-time graph for an object in non-uniform motion is not a straight line. | |
| 5816. |
The atomic number of phosphorus is |
| Answer» 15 | |
| 5817. |
Name the class in which the pesudo segment is present |
| Answer» Annelida | |
| 5818. |
Define rain |
| Answer» The last stage in watercycle known as rain. Tiny droplets of water falls on earth this phenomenon is known as rain. | |
| 5819. |
can anyone know the density of air |
| Answer» Air density, like air pressure, decreases with increasing altitude. It also changes with variation in temperature or humidity. At sea level and at 15 °C, air has a density of approximately\xa01.225 kg/m3\xa0 | |
| 5820. |
Calculate the (a) no.of moles in 12g of iron [At.mass=564] |
| Answer» 37 | |
| 5821. |
What is connetive tissue |
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Answer» Connective tissues\xa0are fibrous in nature.They include blood, bone, ligament, cartilage, areolar and adipose tissues.These help in binding other tissues together. They also provide support to other tissues. The cells are loosely spaced and embedded in an intercellular matrix. The matrix may be jelly like, fluid, dense or rigid. The nature of matrix differs in concordance with the function of the particular connective tissue. Tissues that connect two parts (bone, muscle ,organs etc.) are known as connective tissue such as bone blood etc.) Connect One bone to another bone |
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| 5822. |
Explain, why a cricket player pulls his hands back while catching a ball |
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Answer» A fast moving cricket ball has a large momentum. In stopping or catching this ball, its momentum has reduced to be zero. Now, when a cricket player moves back his hands on catching the fast ball, then the time taken to reduce the momentum of ball to zero is increased. Due to more time taken to stop the ball, the rate of change of momentum of ball is decreased and hence a small force is exerted on the hands of player. So, the hands of player do not get hurt. A cricket player pulls his hand while catching a ball so that the natural acceleration on ball will not affect or hurt the player. |
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| 5823. |
What is mole concept ? |
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Answer» Mole is the measurement in chemistry. It is used to express the amount of a chemical substance.One mole\xa0is defined as the\xa0amount of substance\xa0of a system which contains as many entities like,\xa0atoms, molecules\xa0and\xa0ions\xa0as there are atoms in\xa012 grams of carbon - 12".Avogadro number:The number of the particles present in one mole of any substance = 6.022x1023. This is called avogadro’s number or Avogadro’s constant.No. Of particles in 1 mole:1 mole of hydrogen atoms represents 6.022 × 1023\xa0hydrogen atoms.1 mole of hydrogen molecules represents 6.022 × 1023\xa0hydrogen molecules.1 mole of water molecules represents 6.022 × 1023\xa0water molecules. MOLE CONCEPT:- mole concept is carried out for calculation of particles ( atoms, molecules,ions) present in molecules. |
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| 5824. |
Thomsan\'s model of atom. |
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Answer» Thomson’s atomic model: J.J. Thomson was the first to put forward a model to explain the structure of an atom. Thomson\'s atomic model is also called\xa0water melon model\xa0or\xa0Christmas pudding model. He compared the electrons with the raisins in the Spherical Christmas pudding and to seeds in a watermelon.Postulates of Thomson’s Model:\tAn atom consists of a positively charged sphere, with electrons set within the sphere.\tAn atom is electrically neutral as the positive and negative charges within it are equal.\xa0 Thomson model of atom:- in this model of atom negative particles are embedded in positive sphere this model is also called water meal on structure of atom. |
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| 5825. |
Difference between electrons , protoans and neutrons? |
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Answer» ELECTRONS - electrons are negatively charged particle . it was discovered by J.J. ThomsonPROTONS - protons are positively charged particle. It was discovered by Goldstein.NEUTRONS - neutrons have no charge. It is neutral. It was discovered by James Chadwick.Hope it help you.... Electrons are negatively charged particles. Protons are positively charged particles. Neutrons are particles with no charge. |
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| 5826. |
What is the atomic mass of hydrogen |
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Answer» 1 u 1u Atomic mass of hydrogen is 1 |
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| 5827. |
The ratio of the momentum of the two bodies is 2:3 what is the percentage change in kinetic energy |
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| 5828. |
What is mean by annelida? |
| Answer» Annelidans are the organisms belonging to Phylum Annelida under the category of invertebrates which do not possess vertebral column. These are the organsims which possess characteristics belonging to Phylum Annelida.*Annelidans are aquatic or terrestrial, free living or parasitic in nature.*Annelidans are bilaterally symmetrical, triploblastic, schizocoelomates with segmented body.*They exhibit organ-system level of organization.*Locomotion is by longitudinal muscles, circular muscles and setae.*Closed type of circulatory system is seen.*Nephridia help in osmoregulation and excretion.*Nervous system comprises of nerve ganglia connected to nervecords.*Annelids are both dioeciousand moneciousexhibiting sexual reproduction.*Annelida gets its name from the Latin word “anellus,” which means "little ring". *Annelids are characterised by the presence of a circulatory system.e.g. Earthworm | |
| 5829. |
How can disease be prevented ? Explain |
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Answer» Diseases can be prevented by the following :-1- Don\'t drink contaminated (dirty ) water ,always drink ARO water .2- Don\'t use any used injections in hospital to prevent AIDs like disease .3- Get a proper vaccine from birth .Hope this will help you Don\'t eat junk food |
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| 5830. |
The atomic mass of hydrogen is 1 but the valency is one how? |
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Answer» The valency of hydrogen is 1 because it has only one electron in its orbit so, it can exchange only the electron it has with it, So, when hydrogen comes in contact with any electronegative atom it gives off its only electron it has and becomes H+ . Because the outer most shell of hydrogen have one electro there for it have one valency |
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| 5831. |
Comput the length of second\'s pendulm (g=9.8m/s) |
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| 5832. |
What is the difference between manure and fertilizers |
| Answer» \tManureFertilizerManure is a natural or an organic substance obtained by the decomposition of plant and animal wastes. This is done by microbes, earthworms, fungus etc.Fertilizer is a synthetic substance or an inorganic compound.Low percentage of nutrients is present.High percentage of nutrients is present.Manure provides a lot of organic matter to the soil. It is slowly absorbed by the plants.Fertilizer does not provide any humus to the soil. It is quickly absorbed by the plants.Crop productivity is increased only to some certain extent.Crop productivity is increased many folds by its use.\t | |
| 5833. |
Why is AIDS considere to be a syndrome and not a disease? |
| Answer» AIDS is the syndrome caused by Human Immunodeficiency virus. This is a virus that attacks the human immune system. A person infected with the virus is said to be HIV positive. HIV remains in the body damaging the immune system and the person remains infectious and is able to spread the virus to others. Over time, as HIV damages the immune and weakens it, one may acquire various illnesses due to the damage done by the virus.The person infected by this virus is prone to all sorts of diseases as his immune system is weakened and he does not have any resistance against any diseases. Hence he is affected by a group of diseases hence it is called as syndrome. | |
| 5834. |
Draw a labelled digram of graduated cylinder range of 0-100ml |
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Answer» Yaha par sirf type karke hi ans diya ja sakta hai Kaise draw hoga bhai |
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| 5835. |
a lamp consumers 1000J of electrical energy in 20 seconds what is its power? |
| Answer» P=E*TP=1000*20P=20000 Wt | |
| 5836. |
How to arrange electrones into the shell |
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Answer» K=1shell,L=2shell...so on...to find electrons use 2n^2 where n is no. Of shell there are 4 shells K L M N K shell contain only 2 electronsL shell contain only 8 electronsM shell contain only 18 electrons N shell contain only 32 electrons We can arrange electrons on basis of this |
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| 5837. |
What is the Law of gravity |
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Answer» Newton\'s law of gravitation states that every object in universe attracts every other object with a force proportional to product of their masses and inversely proportional to square of distance between them. F = G× M×m/d^2 |
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| 5838. |
List any two features of phylum Annelida. |
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Answer» Anneelida phylum:-(1) bilaterally symmetrical(2) triploblastic(3) coelomatic(4) argon system(5) their body are sigmented(6)ex:- earthworm, nereis, leech Body is divided into head abdomen thorax they have rings all around there body eg leech earthworm |
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| 5839. |
Work done is scalor or vector quantity? |
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Answer» Work done is a scaler quantity because, we know work has only magnitude and no direction. However, it may be positive or negative. Dot product of two vector quantity gives a scaler quantity . So work is scaler quantity. Work done is a scalar quantity. |
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| 5840. |
Name two cell organelles which are bound by a double layered membrane. Give one function of each? |
| Answer» Plastid and mitochondria plastids help in photosynthesis and pollination. Mitochondria release energy in form of ATP (adenosine triphosphate). | |
| 5841. |
What is the role of blood?? |
| Answer» Blood passes important nutrients and other stuff Fm. one part of body to other. | |
| 5842. |
Newton law of motion |
| Answer» Newton 1st law of motion isEvery object remains in its state of rest or uniform motion, until and external force is applied on it. Newton first law of motion is also known as "law of interia".Newton second law of motion Rate of change of momentum is directly proportional to the force applied on it direction of force.Newton third law of motionEvery action has equal and opposite reaction. | |
| 5843. |
List any 4salint fector of miristamatic tissue |
| Answer» Apical,intercalary,lateral,permanent meristmatics | |
| 5844. |
Differentiate between music and noise |
| Answer» Noise\xa0-\xa01. The unpleasant\xa0sounds around us are called noise. 2. noise is produced by the irregular vibrations of the sound producing source. 3. e.g- horns of vehicles & running of mixer and grinder in kitchen.Music\xa0-\xa01. The sounds which are pleasant to hear are called musical sounds or music. 2. music are produced by the regular vibrations of the sound producing source. 3. e.g -strings of sitar &\xa0shehnai. | |
| 5845. |
What isalloy |
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Answer» Alloy is a homogeneous mixture of two metals or a metal and a non metal .Example -steel. An alloy is a homogenous substance which can be made by melting of two or more elements (one of which is a metal). It is defined as a mixture of metals.Example: Brass is made of 35% zinc and 65% copper and is used for musical instruments, jewellery, faucets and decorative hardware. |
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| 5846. |
Being higher than nitrogen and oxygen why does carbon dioxide not form a lower layer in atmosphere |
| Answer» Co2 is not stable | |
| 5847. |
what is the main question commonly came in exam |
| Answer» [1]derivation for equation of motion [2]examples from ch-8[3]derivation for kinetic energy [4]laws of motion [5]nitrogen cycle [6]types of tissues, their location, function [7]define–1N,1J , [8]definations | |
| 5848. |
The velocity of sound is 35m /s , wavelength is 50 cm , then frequency is : |
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Answer» V=wavelength× frequencyV=35m/sW=50cm=0.5m35=0.5×fF=35÷0.5F=70 12•25 |
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| 5849. |
Explain the formation of ozone layer? |
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Answer» Ozone layer is combination of ozone molecules. An ozone molecule is made up of 3 atoms of oxygen. (i. e. O3) And also due to lightning, the O2 split to form single atom . This O2 atom combine with remaining O2 & form Ozone ( O3 ) molecule . In atmosphere, some OXYGEN (O2) absorbed energy from ultraviolet (UV) ray and split to for single oxygen atoms. This oxygen combined with remaining oxygen and form ozone (O3) molecule. |
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| 5850. |
Derive equation of kinetic energy |
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Answer» u =0m/sMass = ms=v2- u2/2aF = maW = f x s W = ma x v2 - u2 /2aW = 1/2 m(v2 - u2)W = 1/2mv2. (u=0m/s ) 2as=v2-u2. U=0 S=v2/2×a. 1W=F×sF=maW=ma×v2/2×a=W=1/2×mv2 2djjds |
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