InterviewSolution
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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.
| 2251. |
what Isthe importance of dna copying in reproduction |
| Answer» <p>DNA copyingisimportantforreproduction. </p><p>Additionalcopiesof DNAare made duringreplicationwhich is necessary for the new cells formed after cell division.</p><p>DNA replicationis responsible for bringing variations.</p> | |
| 2252. |
What isthe process of fusion of male cell and female cell called? |
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| 2253. |
8. Write the similarities and differences between the motion of a bicycle andceiling fan that has been switched on. |
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| 2254. |
9. Which reptiles are called "limbless lizard"? |
| Answer» <p>Reptileshave on a number of occasions evolved intolimblessforms -snakes, amphisbaenia, andlegless lizards</p> | |
| 2255. |
104 Why is it dangerous to look atthe solar eclipse directly?Page No. |
| Answer» <p>Looking at the sun during an eclipse is more dangerous than looking at full sun. The darkness that accompanies an eclipse can override the natural tendency to squint and avert the eyes, increasing the amount of ultraviolet radiation landing on the retina and making it more likely that you'll sustain eye damage. Your eyes can sustain damage even if only a small sliver of the sun is visible. The cornea focuses sunlight on the retina and scorches it, and because the retina has no pain receptors, you don't know the damage has been done until it's too late.</p> <p>because it affected badly to your eyes and you became blind</p> <p>because it can directly damaged our eyes</p> | |
| 2256. |
. A uniform cube is subjected to volumecompression. If each side is decreased by 1%Then the bulk strain is1) 0.013) 0.022) 0.064) 0.03 |
| Answer» <p>thank you</p> | |
| 2257. |
Define streu 4 strain wwth dimnxien fornula |
| Answer» <p>Stress is defined as force applied on area.</p><p>Mathematically,Stress = Force / Area</p><p>Dimensional Formula of Force= M1L1T-2[Check how Dimensional Formula of force is derived]Dimensional Formula of Area= M0L2T0[Check how Dimensional Formula of area is derived]</p><p>Putting these values in above equation we get,Dimensional Formula of Stress = (M1L1T-2)/(M0L2T0)</p><p>Dimensional Formula of Stress = M1L-1T-2SI unit of Stress is Nm-2</p> <p>Strain is defined as change in dimension over original dimension. Now we know dimension has the units of L thus this means it has no dimensional formula and has no units.</p><p>Strain= Change in dimension/Original dimensionThusDimensional Formula of Strain= (M0L1T0)/(M0L1T0)</p><p>Dimensional Formula of Strain= M0L0T0</p><p>Now we know dimension has the units of L thus same units cancel each other leaving numeric value only. So Strain has no SI unit.</p> | |
| 2258. |
Which strain shall we consider for Young's modulus(A) Longitudinal strain(C) Volume strain(B) Shearing Strain(D) of these |
| Answer» <p>(A) Longitudinal strain</p><p>Explanation:Young's modulus equation is E = tensile stress/tensile strain = (FL) / (A * change in L)</p> | |
| 2259. |
1) Define the term strain and types of stains |
| Answer» <p>There are two types of strains.</p><p>Normal strain (Tensile, compressive and volumetric)</p><p>Shear strain.</p><p>Strain is defined a the ratio of change in dimension to original dimension of a body when it is deformed. </p> | |
| 2260. |
explain the mathod of nea-darvin theory |
| Answer» <p>Definition ofneo-Darwinism. : atheoryof evolution that is a synthesis ofDarwin's theoryin terms of natural selection and modern population genetics.</p> <p>Neo-Darwinism, the modern version of CharlesDarwin'stheoryofevolutionby natural selection, incorporates the laws of Mendelian genetics and emphasizes the role of natural selection as the main force of evolutionary change. ... The controversy between Mendelians and biometricians was resolved by R. A.</p> | |
| 2261. |
Give long answers:a. List some proper ways of disposing wastewater. |
| Answer» <p>Waste Disposal Practices There are eight major groups of waste management methods, each of them divided into numerous categories. Those groups include source reduction and reuse, animal feeding, recycling, composting, fermentation, landfills, incineration and land application. You can start using many techniques right at home, like reduction and reuse, which works to reduce the amount of disposable material used.</p><p>Methods of Waste Disposal</p><p>· Landfill</p><p>· The Landfill is the most popularly used method of waste disposal used today. This process of waste disposal focuses attention on burying the waste in the land</p><p>· Incineration/Combustion</p><p>· Incineration or combustion is a type disposal method in which municipal solid wastes are burned at high temperatures so as to convert them into residue and gaseous products. .</p><p>· Recovery and Recycling</p><p>· Resource recovery is the process of taking useful discarded items for a specific next use. These discarded items are then processed to extract or recover materials and resources or convert them to energy in the form of useable heat, electricity or fuel.</p><p>· Recycling is the process of converting waste products into new products to prevent energy usage and consumption of fresh raw materials. Recycling is the third component of Reduce, Reuse and Recycle waste hierarchy. The idea behind recycling is to reduce energy usage, reduce volume of landfills, reduce air and water pollution, reduce greenhouse gas emissions and preserve natural resources for future use.</p> <p>thanks</p> | |
| 2262. |
What is humidity? |
| Answer» <p>The amount of water vapour present in the atmosphere is called as humidity or absolute humidity.</p> | |
| 2263. |
kirchaph ka niyam |
| Answer» <p>Kirchhoff's circuit laws are two equalities that deal with the current and potential difference in the lumped element model of electrical circuits. They were first described in 1845 by German physicist Gustav Kirchhoff. This generalized the work of Georg Ohm and preceded the work of James Clerk Maxwell.</p> | |
| 2264. |
6.Why are the cotton and woollen clothes rough as compared to acrylie and polyesicr? |
| Answer» <p>Woollen and cotton contain air spaces in it which makes it rough when you touch and also they have uneven surface which makes them rough to touch. On other hand polyster and nylon have plain long fine structure which makes it appear smooth in touch.</p> <p>thank you</p> | |
| 2265. |
Which of the following statements about thegiven reaction are correct?3Fe(s) + 4H20(g) â Fe3O4(s) + 4H2(g)(i) Iron metal is getting oxidised(ii) Water is getting reduced(iii) Water is acting as reducing agent(iv) Water is acting as oxidising agent(A)(i), (ii) and (iii)(C) (i), (ii) and (iv)(B) (ii) and (iv)11i) and (iV(D) (ii) and (iv)11) and (iV |
| Answer» <p>In the given reaction, there isadditionof oxygen to iron metal and it isoxidised. Also, there isremovalof hydrogen from the water and thus, water is reduced. A substance which causes oxidation of other chemical species in a chemical reaction and itself undergoes reduction, is known as anoxidisingagent. Thus, in given reaction, water is acting as anoxidisingagent.</p><p>c). i, ii and iv is the right answer</p> | |
| 2266. |
he following statements are True or False (Any THREEe wileasons, whet(1)Share transfer in depository mode is fast and economical. |
| Answer» <p>Share transfer in depository made is fast and economical is true. </p><p>If you find this answer helpful then like it.</p> | |
| 2267. |
defination of acceliration |
| Answer» <p>In physics, acceleration is the rate of change of velocity of an object with respect to time. An object's acceleration is the net result of any and all forces acting on the object, as described by Newton's Second Law. The SI unit for acceleration is metre per second squared (m s−2).</p> <p>Thnx for the whole defination of this question you helped me a lot i was totally confused</p> | |
| 2268. |
define digestive system |
| Answer» <p>thesystemby which ingested food is acted upon by physical and chemical means to provide the body with absorbable nutrients and to excrete waste products; in mammals thesystemincludes the alimentary canal extending from the mouth to the anus, and the hormones and enzymes assisting indigestion.</p> | |
| 2269. |
EXERCISE 11.3. There are two cuboidal boxes asshown in the adjoining figure. Whichbox requires the lesser amount ofmaterial to make? |
| Answer» <p>💆</p> | |
| 2270. |
the difference between two angular moments |
| Answer» <p>According to Bohr's theory, angular momentum = nh2*pi</p><p>Since, the electrons lie in two successive orbits, their angular momentum will be (n+1)h2*pi and nh2*pi</p><p>Difference: (n+1)h2*pi−nh2*pi= h2*pi.</p> | |
| 2271. |
what is weathering |
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| 2272. |
What do you mean by weathering ? |
| Answer» <p>Weathering is wear away or change the appearance or texture of (something) by long exposure to the atmosphere.</p> | |
| 2273. |
5. Write the IUPAC name of the followingCHCH,CH CHC,H, OH |
| Answer» <p>3,3-dimethyl penanol</p> <p>3,3-dimethyl pentan-2-ol</p> <p>2-ethyl-2,2dimethyl propen-2-ol</p> | |
| 2274. |
Given that Sa (In SI units), using this equation find the initial velocity1) 1m/s2)-1m/s3) 0 m/s4) 2 m/s |
| Answer» <p>initial velocity = u</p><p>s = ut + 1/2at²</p><p>So u = 0 m/s</p> | |
| 2275. |
I0 SOlUIIas. Hind the height of the tower.9.Water drops are falling in regular intervals of time from top of a tower of height 9 m. If 4th drop beginsto fall when 1t drop reaches the ground, find the positions of 2nd & 3rd drops from the top of the tower.107 |
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| 2276. |
What are the units of work? If 196 Joules of work is done in pushing a 10 Kg loadthrough a distance. Calculate the distance through which it has moved ? |
| Answer» <p>units of work are jouleswork=mghhence h=work/mgh=196/10*10h=1.96m</p> | |
| 2277. |
5. Give answers.a State the merits of Whittaker's methodof classification |
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| 2278. |
5. Give answers. * .a. State the merits of Whittaker's methodof classification. |
| Answer» <p> and please</p> <p>Whittaker'smethod ofclassificationis more scientific and natural because of the followingmerits: 1) It is the most accepted modernclassificationsystem due to the phylogenetic placing of different living organisms. 2)In this system separation of prokaryotes into an independent kingdom is justifiable.</p> <p>method of classification is more scientific and natural because of the following merits: 1). it is the most accepted modern classificationsystem due to the phylogenetic placing of different living organism 2) unr system separation of</p> | |
| 2279. |
258. A partirparticle thrown upwards returns to the earth after 4 secAL (-3) seconds, it is at a height of(b) 19.6 m(c) 29.4 in(d) 39.2 m259(a) 14.7 m |
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| 2280. |
ation ol watcr in a plant?3. Discuss the importance of transportation of various materials in the human body |
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| 2281. |
Which one of the following produces 6antibodies?a) Monocytesc) Lymphocytesb) Erythrocytesd) Thrombocytes |
| Answer» <p>Antibodies are produced by specializedwhite blood cellscalled Blymphocytes(orB cells). When anantigenbinds to the B-cellsurface, it stimulates theB cellto divide and mature into a group of identicalcellscalled a clone.</p> | |
| 2282. |
How does the failure of rainfall affect people on the earth? |
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| 2283. |
What is the installation of nitrogen except by bacteria? |
| Answer» <p>Rhizobacterium is required for installation of nitrogen. legumes contain symbiotic bacteria called rhizobia within nodules in their root systems, producing nitrogen compounds that help the plant to grow and compete with other plants. When the plant dies, the fixed nitrogen is released, making it available to other plants; this helps to fertilize the soil.</p> | |
| 2284. |
Long-answer type questions:1. What is the function of(a) Bar screen of sewage treatment plant |
| Answer» <p>It is part of the primary filtration flow and typically is the first, level of filtration, being installed at the influent to a wastewater treatment plant. They typically consist of a series of vertical steel bars spaced between 1 and 3 inches apart. </p> | |
| 2285. |
. What is sewage? |
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| 2286. |
Answers the following questions in brieWrite the meaning of the following(a) work(b) energy |
| Answer» <p>An applied force can doworkon an object and cause a change inenergy.Energyis definedas the ability to dowork.</p> | |
| 2287. |
2. Define interference of light. |
| Answer» <p>INTERFERENCE is the process in which two or more waves of the same frequency - be it light, sound, or other electromagnetic waves - either reinforce or cancel each other, the amplitude of the resulting wave being equal to the sum of the amplitudes of the combining waves.</p> | |
| 2288. |
which state is called land of spices |
| Answer» <p>Sikkim is the state that know n as land of peace</p> <p>kerala is land of spices</p> <p>Kerela is known as the land of spices.</p> <p>s. Michael plzz like my answer</p> <p>Kerala state called land of spices</p> <p>Kerala land spices india</p> <p>kerala is the land of spices </p> <p>Kerala is land of spices</p> <p>Kerala is the land of spices</p> <p>arunachal pradesh is the land of species</p> <p>Kerala is known as land ofspices</p> <p>Kerala is known as land of spices. </p> | |
| 2289. |
escribe with the help of a diagram an instrument which can betect a charged body. |
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| 2290. |
21. Which is the longest day in the northern hemisphere? |
| Answer» <p>thanks</p> | |
| 2291. |
7. How is burning of fossil fuels thought to be related to global warming? |
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| 2292. |
6. Why carbon is unique in nature? |
| Answer» <p>Carbonis the only element that can form so many different compounds because each carbonatom can form four chemical bonds to other atoms, and because thecarbonatom is just the right, small size to fit in comfortably as parts of very large molecules.</p> | |
| 2293. |
Which of the following types of photons has thehighest energy? |
| Answer» <p>Radio waveshave photons withlowenergies, microwave photons have a little more energy thanradio waves,infraredphotons have still more, then visible, ultraviolet,X-rays, and, the most energetic of all, gamma-rays</p><p>please like the solution 👍 ✔️</p> | |
| 2294. |
Deine the following types of motion:Rectilinear motion(b) Circular motion |
| Answer» <p>(a) Rectilinear motion means motion along a straight line. An example of linear motion is that of a ball thrown straight up and falling back straight down.(b) Circular motion is the movement of an object along the circumference of a circle. Examples of circular motion include an artificial satellite orbiting the Earth at a constant height, a stone which is tied to a rope and is being swung in circles, a car turning through a curve in a race track, an electron moving perpendicular to a uniform magnetic field, and a gear turning inside a mechanism.</p> | |
| 2295. |
Which postulate of Dalton's theory is the result of law of constant proportion. |
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| 2296. |
PAGE NoDATE:20MA |
| Answer» <p>Anammeteris an instrument for measuring the electric current in amperes in a branch of an electric circuit. It must be placed in series with the measured branch, and musthave verylow resistanceto avoid significant alteration of the current it is to measure. By contrast, an voltmeter must be connected in parallel.</p><p>hit like if you find it useful</p> | |
| 2297. |
1. A sum of 3000 is to be given in the form of 63 prizes. If the prize money is eithort25. Find the number ofprizes of each type. |
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| 2298. |
i) eH,COOCOCH, |
| Answer» <p>Acetic anhydride, orethanoic anhydride, is thechemical compoundwith theformula(CH3CO)2O.</p> | |
| 2299. |
1.1. निम्न में से कौन ग्रीन हाउस गैस नहीं है ?(क) मीथेन (ख) जुलवाष्प(ग) कार्बन डाइआक्साइड io B ७० ** “क 2 |
| Answer» <p>ऑक्सीजन और नाइट्रोजन ग्रीनहाउस गैस नहीं हैं, क्योंकि वे अवरक्त प्रकाश के लिए पारदर्शी हैं।Please like the solution 👍 ✔️👍</p> | |
| 2300. |
16. On simplification -3a2a-(4a2 +b).the value is(a) b2-a2(c) 3a2+ b2(b) b -3a?(d) Sa -b2 |
| Answer» <p>-3a² - [ 2a² - (4a² + b²)]</p><p>-3a² - 2a² + 4a² + b²</p><p>b² - a²</p><p>option (a) is correct</p> | |