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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.
| 4301. |
um coco |
| Answer» <p>Two items that are made from coconut fibre are:(i) Ropes(ii) Baskets</p> | |
| 4302. |
Which of the following is not a system of measurement?(A) MKS(c) cGS(E) of these17.(B) FPS(D) FPO |
| Answer» <p>option D is the answer. </p> | |
| 4303. |
what are the standard units of mass, length and time in the CGS system SI system |
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| 4304. |
are the standard units of mass, length and time in theb. SI system?WhatCGS system?a. |
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| 4305. |
t are the standard units of mass, length and time in theb. SI system?a. CGS system? |
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| 4306. |
Q. 25. Write name and uses of twostrong acids and two strong bases.ydrochloric |
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| 4307. |
Draw the magnetic field lines due to a current carrying loop |
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| 4308. |
26 A constant force F m2g/2 is applied on the block ofmass m, as shown in figure (5-E10). The string and thepulley are light and the surface of the table is smooth.Find the acceleration of mm1 |
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| 4309. |
State any three properties of acids. Name two mineral acids. |
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| 4310. |
l③(ariteshort5) Write short notes on(a) AIDS;(b) Malaria.(b) Malaria |
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| 4311. |
2.How many planets are there in the solar system? Name them. |
| Answer» <p>There areeight planetsin the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune</p> | |
| 4312. |
How would you show that sound needs a medium to propagate |
| Answer» <p>Materials needed:tall glass jar,bell,candle</p><p>Method:take a glass jar. attach a small bell to the bottom of the cap of the jar. close the jar with the cap. shakethe bottle and note the sound made by bell. now open the jar,place lighted candle in it and close thr jar again. wait for the candle to be extinguished. shake the bottle again. the sound is not produced.</p><p>the oxygen is taken up by the candle.so the bell does not produce any sound.</p><p>This proves that sound needs a medium to travel</p> | |
| 4313. |
2) Write the electron-dot structure for sodium, oxygen and magnesium. |
| Answer» <p>Sodium has only one valence electron</p> <p>Magnesium has two valence electrons</p> <p>Oxygen has 6 valence electrons</p> | |
| 4314. |
What would be the electron dot structure of carbon dioxide włCO,?1. |
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| 4315. |
--ated GrammarHoly Angel SchoolAssignment ChemistryClass - IX (Ch. 1, 2)Give reaso.is for the following :-(a) Sponge can be compressed, yet is a solid.(b) Small quantity of chlorire fills the whole vessel in whichWhat is the effect of the following or rate of diffusion?(a) Temperature (b) Density of the liquid- Kelvin scale of temperature in |
| Answer» <p>because it has large intermolecular spaces between them</p> <p>because gases have large intermolecular spaces they are highly compressible</p> | |
| 4316. |
what is industries |
| Answer» <p>a chain of company's or a big company </p> <p>a chain of company is the correct answer of the given question</p> <p>big companies are often called industries</p> <p>Industry : Any economic activity whose aim is to produce or supply goods or to provide services.</p> <p>economic activity concerned with the processing of raw materials and manufacture of goods in factories.</p> <p>economic activity concerned with the processing of raw materials and manufacture of goods in factories.</p> | |
| 4317. |
An agent is moving positively charged body towards another fzed positicharge. The work done by the agent is |
| Answer» <p>I have not understood</p> | |
| 4318. |
Why does the water split on the floor disappear after some time? |
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| 4319. |
ng organisms It is alsothe eu2.3, DIFFERENCES BETWEEN PLANT AND ANIMAL Chue the following differences:a nlant cells |
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| 4320. |
Define molar heat capacity? |
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| 4321. |
SUB : SCIENCESESSION 2017-18Summer Vacation HWClass V!!01 Draw the diagram of the followinga) Digestive system (Human being, Amoeba Ruminant animeO2. Explain the process of the photosynthesis with the help of diagram03. Write different steps of nutrition in Hurrian being04. Why do organisms need to take food?05. Distinguish between a parasite and Soprotroph06. Define-a Autotrophsb) HeterotrophC) Parasited) Saprophytic nutrition07. Explain symbiotic relationship with example:08. What are vill? What is their location and function09. Which part of the digestive Canal is involve in-a) Absorption of food |
| Answer» <p>the process of converting or breaking down complex food into simple and soluble form is called digestion. </p> | |
| 4322. |
are milli?function thereMhatandtheir locationabsorbing is occur!What isand how |
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| 4323. |
CIRCULAR MOTION9. /The angular velocity of a particle rotating in acircular |14. Aorbit 100 times per minute is [DPMT 2000](A) 1.66 rad/s010.47 degree/s (D) 60 degr(B) 10.47 rad/s |
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| 4324. |
1. Define energy |
| Answer» <p>Energy is the capacity of a physical system to do work. The common symbol for energy is the uppercase letterE. The standard unit is thejoule, symbolized by J.</p> <p>energy is the capacity to do more</p> | |
| 4325. |
What is the best tobicScience four class 8th Pof |
| Answer» <p>stars and galaxies is the recommendation from me</p> | |
| 4326. |
M. If a 2,000-kilogram car accelerates at a rate of 3 metersper second squared, what is the force the engine appliedto the car? |
| Answer» <p>Force = m*a = 2000*3 = 6000N = 6KN </p> | |
| 4327. |
() Mr. de Klerk was first sworn in as first deputy president ofSouth Africa. |
| Answer» <p>Mr. de Klerk was the first deputy president of south Africa serves from 10 May 1994 to 30 June 1996</p> <p>thank u</p> | |
| 4328. |
1) The material that get decomposed with the help of a bacteria is called......... |
| Answer» <p>The material that get decomposed with the help of bacteria is called organic matter which involves four component processes are:1. photo-oxidation2. leaching3. comminution4. mineralization</p> <p>decomposing of material is the correct answer</p> | |
| 4329. |
\begin{array} { l } { \text { In a panchayat the elected members } } \\ { \text { are called } } \\ { \text { The city is divided into several } } \end{array} |
| Answer» <p>The gram panchayat is divided into wards and each ward is represented by a Ward Member, also referred to as a Panch or Panchayat Member, who is directly elected by the villagers. The panchayat is chaired by the president of the village, known as a Sarpanch. The term of the elected representatives is five year</p> | |
| 4330. |
dAa elephant of weignt bo0ulift. Can a boy of weight 25 kg-wt standing on the smaller pistidthe elephant ?e input piston is 10 cm. The surface area of theorce applied to the input piston raises the output pestonAns.Here P, P500 kg wt/m2, Hence the boy can balance the elephant9 In a hydraulic lit, the surface area of the input pistonoutput piston is 3000 em2. A 100 Nby 1 m. Caleulate the work done.the injpAns 30 k.JMint:P F (AA) and W-FIml |
| Answer» <p>Pressure input on piston</p><p>P = F/A = 100 /10* 10^-4</p><p>P = 10^5 N/m²</p><p>According to Pascal's law</p><p>10^5 = fo /3000* 10^-4</p><p>fo = 3 *10^4</p><p>Now</p><p>Work done = 3 *10^4 * 1 = 3 *10^4 joules</p> | |
| 4331. |
Write IUPAC names of the following:H3C HH CH3BrH3CH3C CH3Но ,нНоHC H(iv)BrBr |
| Answer» <p>i) 4-bromo-pent-2-eneii) 3-bromo-2-methyl-but-1-eneiv) 4-bromo-3-methyl-but-2-enev) 4-bromo-but-2-ene</p> | |
| 4332. |
flat roof is equal to the sum of the areas of the four walls. Find he nelgiHameed has built a cubical water tank with lid for his house, with each other edge1.5 m long. He gets the outer surface of the tank excluding the base, covered with squaneetiles of side 25 cm. Find how much he would spend for the tiles, if the cost of tiles isoPRs 360 per dozen.ncreased by 50%. Find the percentage increase in the surface |
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| 4333. |
If the frequency of a wave is increased by 25 %, then the change in its wavelength will be:(medium not changed)(A) 20% increase17.(B)20% decrease(C) 25% increase(D) 25% decrease |
| Answer» <p>wavelength = v/f </p><p>now when f is increased by 1.25f </p><p>=> now, wavelength = v/1.25f = 100v/125f = 4v/5f</p><p>so, new wavelength = 4/5*(old wavelength) => % decrement = (1-4/5)*100% = 100/5 = 20% </p> | |
| 4334. |
2.21. If in the determination of melting point of ice, theice is contaminated with some non-volatile impuritylike common salt. freezing point of ice(b) will decreasete does not change(d) may increase or decrease |
| Answer» <p>c is the right answer</p> <p>bhai c answer is correct please mark as best 🙏</p> <p>the right answer will increase </p> <p>I think that c is correct answer</p> <p>answer is c) does not change</p> <p>d is the right answer </p> <p>I thik d is correct answer </p> <p>c is best answer I think</p> <p>option C is the correct answer </p> <p>c is the right answer </p> <p>it will increase..part (a) is the answer</p> <p>c is right answer of this question </p> <p>I think c is best answers</p> <p>c id is the right...</p> | |
| 4335. |
15. How do scientists utilise the information about fossils?(AS1) |
| Answer» <p>Fossils aretraces of ancient life.Scientists use fossils togatherinformationabout the lives and evolutionary relationships of organisms, for understanding geological change and even for locatingfossilfuel reserves.</p> | |
| 4336. |
A........... is made of thousands of criss - crossing threads forming anetwork |
| Answer» <p>A clothis made of thousands of criss-crossing threadsforming a network.</p> | |
| 4337. |
p, 30 micelles will not be formed in o. 3. Explain the mechanism of the cleaning action of soaps.Ans.rhe dirt present on clothes is organic it cannot he rem |
| Answer» <p>Soapmolecules are long chain of carboxylic acids with sodium or potassium at one end . Since the dirt is mostly oily in nature which does not dissolve in water , the carbon chain dissolves in oily dirt and ionic end dissolves in water .</p> | |
| 4338. |
take place in the sky a the same time and At usame distance from us. Lightning is seen earlierlater. Can you explain why?and thunder is heard169 |
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| 4339. |
Classify the following salt(1) CH COONa |
| Answer» <p>sodium acetate may be</p> | |
| 4340. |
chemical formula of: sodium chloride |
| Answer» <p>Chemical formula of Sodium chloride is NaCl.</p> | |
| 4341. |
13. Find the distance travelled by seema if she takes three rounds of a squarepark of side 30 m. |
| Answer» <p>36030*4=120120*3=360</p> | |
| 4342. |
0 Calculate the Force required to move a stationary object of mass 3kg from rest to velocityat 8 m/s in 2 seconds. |
| Answer» <p>Given data:v = 8m = 3kgt = 2 secondsu = 0</p><p>by using 1st equation of motion, we will find acceleration firstlyv = u+at8 = 0+2aa = 4 m/s^2</p><p>force = mass×accelerationforce = 4×3 = 12N</p> | |
| 4343. |
A body has a free fall from a height of 20 mm.After falling through a distance of 5 m, thebody would |
| Answer» <p>lose one fourth of it's total energy</p> <p>explain </p> | |
| 4344. |
a hammer of mass 500g moves at 50m/s Strick's a nail. The nail stop the hammer in 0.01 second. what is the force of nail on the hammer? |
| Answer» <p>500 g = 0.5 kg F = 0.5×50/0.01 = 2500 N </p> | |
| 4345. |
Column AColumn B() Vinegar(a) Major salt ofsea(i) Fertilizer (b) Basic(ii) Sodium(c) Magnesiumchloridehydroxide(d) Acetic acid(e) Potassiumnitrate(iv) Lime water(v) Milk ofmagnesta |
| Answer» <p>vinegar - Acetic acid Fertilizer - Potassium Nitrate Sodium Chloride - Major salt of sea Lime Water - Basic Milk of Magnesia - Magnesium Hydroxide</p> | |
| 4346. |
21. Write the caemical formulae of following with their chemicalnama) Washing soda b) ime )Pster of paris!)!,ister of parisc)ăe |
| Answer» <p>washing soda -sodium carbonate-Na2CO3lime -Calcium oxide(CaO)plaster if paris-Calcium sulphate CaSO4.1/2H20</p> | |
| 4347. |
ORcapacitor is made of a flat plate of area A and second plate having stair likestructure as shown in figure below. If width of each stair is A/3 and height is d.Find the capacitance of the arrangement.3. A |
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| 4348. |
14. Writedomestic use of the following. Yousolusolu(a) Washing sodac) Sulphuric acide) Acetic acidb) Sodium chloride(d) Calcium oxide |
| Answer» <p>A. In washing clothesB. Table saltC. Cleaning toiletD. Quick limeE. Vinegar </p> | |
| 4349. |
Which of the following materisubstance"?(a) Ice(b)Milk(c)(d)le)IronHydrochloric acidCalcium oxideMercuryBrickWoodAir.(g(h)(i) |
| Answer» <p>ice,wood ,iron, brick </p> | |
| 4350. |
the planet which have rings like structure? |
| Answer» <p>The most prominent and most famous planetary rings in theSolar Systemarethose around Saturn, but the other threegiant planets(Jupiter,Uranus, andNeptune) also have ring systems.</p> <p>saturn is the correct answer.</p> <p>thos type of planet is called saturn</p> <p>saturn is the correct answer </p> <p>Saturn is the correct answer </p> <p>Jupiter Saturn Neptune </p> <p>Saturn have rings like structure</p> <p>Four the planets in the Solar System have rings. They are the four giant gas planets Jupiter, Saturn, Uranus, and Neptune. Saturn, which has by far the largest ring system,</p> <p>A ringsystem arounda planetis also known asa planetary ringsystem. The most prominent and most famousplanetary ringsin the Solar System are those around Saturn, but the other three giantplanets(Jupiter, Uranus, and Neptune) alsohave ringsystems.</p> <p>saturn is the right answer</p> <p>Saturn is the right answer</p> | |