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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.
| 4201. |
1. The unit of permittivity (t,) of free space is(a) CNm(c) CN m(b) Nm Cc(d). C'N'm2 |
| Answer» <p>d...</p> | |
| 4202. |
e (9) 22.22 gm ofUrea was dissolved in 100 gm of water,calculate the molality of solution ?(N-14,H-1,C-12,0-16) |
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| 4203. |
(c) pH value of milk of magnesia is1) 2(iii) 7(ii) 3(iv) 10 |
| Answer» <p>around 10 </p> | |
| 4204. |
.7which of the following i not a type of fage Margin ?1ay Right b Left Center dr Top |
| Answer» <p>option c. </p> | |
| 4205. |
what is the pH value of milk |
| Answer» <p>Actually, milk has a pH ofaround 6.5 to 6.7, which makes it slightly acidic.</p> | |
| 4206. |
vitamins and mineral are |
| Answer» <p>vitamins and minerel are those molecules which gives body nutrition.</p> <p>Vitamin and mineral are those molecules which gives body nutrition </p> <p>vitamins and minerals are these</p> <p>Vitamins and mineralsare considered essential nutrients—because acting in concert, they perform hundreds of roles in the body. They help shore up bones, heal wounds, and bolster your immune system. They also convert food into energy, and repair cellular damage</p> <p>Vitamins and mineralsare considered essential nutrients—because acting in concert, they perform hundreds of roles in the body. They help shore up bones, heal wounds, and bolster your immune system. They also convert food into energy, and repair cellular damage.........</p> <p>vitamin and mineral are those molecules which gives body nutrition .</p> | |
| 4207. |
why do organisms need to take food |
| Answer» <p>Organisms need to take foodbecauseorganisms needenergy to perform any activity or function and they get energy fromfood. Thats why theyneed to take food. ... becauseorganisms needcarbohydrate, vitamins, and minerals and other nutrients to gain energy and proteins to live and to continue metabolism.</p> | |
| 4208. |
Why do organisms need to take food? |
| Answer» <p>Organisms need to take food because organisms need energy to perform any activity or function and they get energy from food</p> | |
| 4209. |
Why do organisms take food? |
| Answer» <p>Organisms take food to survive . </p> <p>organism take food to survive on earth. </p> <p>organism take food to survive on earth</p> <p>organism take food to survive is the correct answer of the given question</p> <p>organism take food for survive and take energy</p> <p>organism take food for survive and take energy</p> <p>to get energy yo do work</p> <p>organisms take food to survive </p> <p>Organisms take food to survive on Earth</p> | |
| 4210. |
The resultant of A and B is perpendicular to AWhat is the angle between A and B? |
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| 4211. |
E = MC^2 |
| Answer» <p>Inphysics,mass–energy equivalencestates that anything havingmasshas an equivalent amount ofenergyand vice versa, with these fundamental quantities directly relating to one another byAlbert Einstein's famous formula:E=mc^2</p><p>This formula states that the equivalent energy (E) can be calculated as the mass (m) multiplied by thespeed of light(c= about3×108m/s) squared. Similarly, anything having energy exhibits a corresponding massmgiven by its energyEdivided by the speed of light squaredc². Because the speed of light is a very large number in everyday units, the formula implies that even an everyday object at rest with a modest amount of mass has a very large amount of energy intrinsically.</p> <p>TQ and who can solve this problem.with questions..</p> | |
| 4212. |
There are two vectors P=4i+8j+8k andQ = --2i-4j-3k. If P = aQ then the value of a is |
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| 4213. |
From a circular card sheet of radius 14 cm, two circles of radius 3.5 cm and arectangle of length 3 cm and breadth 1cm are removed. (as shown in the adjoining Figure). Find the area of the remaining sheet. (Take π=22/7) |
| Answer» <p>R=14 cmtotal area= πr²=22/7*196=616 cm²r2= 3.5 cmarea of the small circles= 2*πr²=2*12.25*22/7=77 cm²length of rectangle=3breadth=1area =lb=3 cm²</p><p>area of the small circles+area of rectangle=77+3=80 cm²</p><p>remaining area=616-80=536 cm²</p> | |
| 4214. |
15 giedle that the number ofPractice Set 7ate the proper signs >, < or = in the boxes below.-425 (2) 82-10 (3) +95) +97074 (6) 320 (0)-701-21-8(10) -421-2 (11) 60-3Subtraction of Integerssvou have a debt of 8 rupees. If you are |
| Answer» <p>You already filled it</p> <p>2)>6)>10)>3)=7)<1 1) ></p> | |
| 4215. |
Write 'T' for true and 'F' for false.1. In the sea tides come again and again after definite intervals of time. U2. Earthquake is an example of periodic change.3. Changes like the ripening of fruits are harmful changes.4. It is possible to change ash back into wood.5. Drying of wet clothes is a slow change.DDDDD |
| Answer» <p>FFTFF is the answer of the following</p> | |
| 4216. |
the altitude of a right teangle est7cm Less than its base at the n eprotenuse is 13cm find the otherHomo sude |
| Answer» <p>Let base be x cm , then altitude will be (x-7) cm.</p><p>Now , </p><p>By using pythagoras theorem-</p><p>132 = x2 + (x-7)2</p><p>169 = x2 + x2 + 49 - 14x</p><p>2x2 - 14x - 120 = 0</p><p>x2 - 7x - 60 = 0</p><p>x2 - 12x + 5x - 60 = 0</p><p>x ( x - 12 ) + 5 ( x - 12 ) = 0</p><p>Hence x = 12 </p><p>sO , Altitude is 5 cm</p><p>AND. ,</p><p>base = 12cm</p> <p>Attitude is 5cmandbase = 12cmanswer.</p> | |
| 4217. |
ForwardedHow is chlorobenzene prepatedbrom 6enzene diazonium chloride0.2 PM |
| Answer» <p>thanks </p> | |
| 4218. |
Electro motive force (EMF)isa) Scalar(c) Neither scalar nor vector(b) Vector(d) of these |
| Answer» <p>output Voltage a battery puts out. Voltage ( in SI) units is J/C, or Energy per unit Charge.it is ascalar quantity.</p> <p>a) scalar is the answer </p> <p>ok</p> | |
| 4219. |
The inner circumference of a circular track is 330 m. The track is 10.5 m wide everywhere. Calculate thecost of putting up a fence along the outer circle at the rate of 20 per mere.0. |
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| 4220. |
. Name the techniques to separate:a. Cream from Milk.b. Dyes in the black ink.c. Ammonium Chloride and common salt.Or |
| Answer» <p>a)The process of centrifugation is used in dairies to separate cream from milk . b)Chromatography is used to separate dyes in black inkc) Sublimation is the process used to separate ammonium chloride from common salt</p> | |
| 4221. |
t is rainwater harvesting? How is it useful?Đ 44 anti |
| Answer» <p>Rainwater harvestingis a technique used for collecting, storing, and usingrainwaterfor landscape irrigation and other uses. ... Withrainwater harvestingyourrainwateris collected in a water storage tank or cistern and stored for later use.</p> | |
| 4222. |
5.Which of the tollowing oxide is insoluble in dilute HCl?(A) ZnO(B) PbO(C) A12O3(D) Ag2O(A) ZnO(B) PbO(C) A1,O3(D) Ag,O6. Pick the correct statement(s) from the following(A) Fullerene is purest form of carbon(B) Diamond has great kinetic stability(C) Graphite is good conductor of electricity(D) Carbon-carbon bond length in benzene is slightly less than that in graphite |
| Answer» <p>lead metals don't react with Dil HClhence answer is PbO</p> <p>thanks 6 number questions</p> <p>sol</p> | |
| 4223. |
What are the two main techniques of rainwater harvesting |
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| 4224. |
what are the two main techniques of rainwater harvesting? |
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| 4225. |
Differentiate between the following questions in about 30 words.clayey and sandy soilsb.topsoil and subsoil |
| Answer» <p>Clayey soil =></p><p>1.The proportion of fine particle is higher.2.Particles are packed tightly.3.It can hold good amount of water.4.Water can not drain quickly.5.It is heavy in weight.6.Less air is trapped between the particles.7.It is rich in humus.</p><p>Sandy soil =></p><p>1.The proportion of large particles is higher.2.Particles are loosely packed.3.Its ability to retain water is low.4.Water can drain quickly.5.It is light in weight.6.More air is trapped between the particles.7.It is not rich in humus.</p><p>Topsoil :-top soil is the upper layer of the native soil. the highest concentration of microorganism in organic matter can be found in the top 2 to 8 inches soil .</p><p>subsoil :-the soil lying immediately after the surface soil .</p> | |
| 4226. |
V. Differentiate between -Sandy soil and clayey soil.Clayey and loamy soil.a.b. |
| Answer» <p>a)Clayey soil:</p><p>(i) Proportion of fine particles is more than big particles.</p><p>(ii) It has less percolation rate of water.</p><p>(iii) It has good water holding capacity.</p><p>Sandy soil:</p><p>(i) Proportion of big particles is more than fine particles.</p><p>(ii) It has more percolation rate of water.</p><p>(iii) It has poor water holding capacity.</p> <p>b)Clayey soil:</p><p>(i) Proportion of fine particles is more than big particles.</p><p>(ii) It has less percolation rate of water.</p><p>(iii) It has good water holding capacity.</p><p>Loamy soil</p><p>i) It is a mix of sand, silt or clay, and organic mattercontain large particles which are visible to the unaided eye.</p><p>ii) They are loose and look rich.</p><p>iii) They can normally absorb water and store moisture well</p> | |
| 4227. |
Salil wants to put a picture in a frame. The picture is 7 cm wide.CLTo fit in the frame the picture cannot be more than 7the picture be trimmed?cm wide. How much should10 |
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| 4228. |
5. Show that 1 km/h5/18 m/s. |
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| 4229. |
B-3.a A projctile is fired from a gun at an angle of 45° with the horizontal and with a speed of 20 mls relativethe other fragment land,to ground. At the highest point in its flight the projectile explodes into two fragments of equal mass. Onefragment comes at rest just after explosion. How far from the gun doesassuming a horizontal ground? Take g 10 m/s? |
| Answer» <p>1. At its highest point, an object in free fall has no vertical velocity.2. The horizontal velocity of an object does not change in free fall in frictionless space.</p><p>Therefore, 20m/s.</p> <p>wrong</p> | |
| 4230. |
(1) Determine which of the following pairs of anglesare co-terminal.(i) 2100,-150°(ii) 405o,-675°(ii) 3300,-60°(iv) 1230°,-930° |
| Answer» <p>Option A is the answer</p> <p>becauseFindingcoterminal anglesis as simple as adding or subtracting 360° or 2π to eachangle, depending on whether the givenangleis in degrees or radians</p> <p>please like the solution 👍 ✔️</p> | |
| 4231. |
-. Define capacitance of a capacitor and its SI unit. |
| Answer» <p>Capacitance is the ratio of the change in an electric charge in a system to the corresponding change in its electric potential. ... The SI unit of capacitance is the farad (symbol: F), named after the English physicist Michael Faraday.</p> <p>Capacitanceis the ratio of the change in an electric charge in a system to the corresponding change initselectric potential. ... TheSI unitofcapacitanceis the farad (symbol: F), named after the English physicist Michael Faraday.</p><p>SI unit:farad</p><p>In SI base units:F = A2s4kg−1m−2</p><p>Derivations from other quantities:C = charge /voltage</p> <p>capacitance is the ratio of the change in an electric charge in asystem to corresponding change in its electric potrntial</p> <p>Charge storing capability of acapacitoris calledcapacitanceofcapacitor.Definition:Capacitance of a capacitorisdefinedas the ratio of the charge stored on any of the plates ofcapacitorto the potential between the plates.</p> <p>right answer is farad hoga</p> <p>SI unit is a typicalKelven unit it is nice for measuring mass time lengths </p> <p>what is human of noise pollution</p> <p>The ability of a conductor to store charges is known as capacitance or capacity.qaV or q=Cv.if V =1volt then C=q capacitance of a conductor is defined as the charge required to raise its potential through one unit.SI unit of capacitance is farad.</p> <p>right answer is farad hoga..</p> <p>farad</p><p>The SI unit of capacitance is thefarad(symbol: F), named after the English physicist Michael Faraday. A 1faradcapacitor, when charged with 1 coulomb of electrical charge, has a potential difference of 1 volt between its plates. The reciprocal of capacitance is called elastance.</p> <p>capacitance is the ratio of the change in electric charge in a system to the corresponding change in its electric potential.the SI unit of capacitance is the farad symbol.F named after the English physicist Micheal Faraday</p> <p>capacitance is the ratio change</p><p> the. of the change in an charge. in a system to corresponding change in it's electric current potential the si unit of capa citance is the farad (symbolf) Ned after the English physicist Michael Faraday so unit farad in si base units f =a2s4kg -1m -2 derivations from other quantities c=charge/voltage</p> <p>carry hi is a ans...</p> <p>TheCapacitanceof aCapacitor</p><p>Capacitanceis defined as being that acapacitorhas thecapacitanceof One Farad when a charge of One Coulomb is stored on the plates by a voltage of One volt. Note thatcapacitance, C is always positive in value and has no negative units.</p> <p>Capacitanceistheratio ofthechange in an electric charge in a system tothecorresponding change initselectric potential. ...The SI unitofcapacitanceisthefarad (symbol: F), named aftertheEnglish physicist Michael Faraday.</p><p>SI unit:farad</p><p>In SI base units:F = A2s4kg−1m−2</p><p>Derivations from other quantities:C = charge /voltage</p><p>Other units:μF, nF, pF</p> <p>capacitance is the ratio of the change in an electric charge in asystem to corresponding change in its electric potrntial</p> <p>capacitor is tha capability of charge store </p> <p>SI unit of capacitance is farad</p> <p>SI unit of capaciter is farad</p> <p>capacitance is the ratio of the change in electric charge of a system toh the corresponding change in Its in electric potential and Its sirf unit is farad</p> <p>The Ability Of Any Conductor To Store Charges Is Known As Capacitance .</p><p>C = Q/∆VSI Unit = Coloumb/ Joule = Farad </p> <p>on increasing charge on any conductor potential increases i.e. Q proportional V or Q= CV where,C is a constant, which is called capacity of capacitor</p><p>unit-</p><p>Farad in SI</p><p>stat Farad in CGS</p> <p>capacity of a conductor to store charge is called capacitanceit's SI unit is farad </p> <p>capacity to store charge in conductor is called capacitanceit's SI unit is farad</p> <p>ability of a component or circuit to collect and store energy in the form of an electrical charge.</p> | |
| 4232. |
2. A shirt which absorbs green colour appears magenta in colour. |
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| 4233. |
ecicouvly3. In a mixture, the constituents do not lose their identities. Explain. |
| Answer» <p>Mixtures are combinations of two or more substances in which each substance retains its chemical identity.</p> <p>The reason for this is quite simple: Mixtures are just a bunch of stuff put together in the same place. Their molecules have very weak bonds between them, just enough to keep them in their current solid, liquid, or gaseous...</p> | |
| 4234. |
Give one difference and similarity between amoeba and human nutrition |
| Answer» <p>Amoeba takes the food by temporary finger projections called pseudopodia. The pseudopodia circles the food forming a vacuole. The digestive enzymes present in the cytoplasm enter the vacuole and breakdowns the food into small particles, which are water soluble. Thus the food gets digested from the food vacuole, spreads through the body of Amoeba. A single part of the absorbed food is thereby used to obtain subsequent forms of energy through the process called as respiration and some thereby is used for the massive growth of the Amoeba cell structure. The food that is undigested is moved through the top surface of the Amoeba cell structure and it is ejected by getting thrown out of the huge rupture of the membrane cell. Thus the difference and similarity is as given below:</p><p>Difference: Pseudopodia help in capturing food for amoeba and to engulf it. Mouth helps in taking food for humans.</p><p>Similarity: Food vacuole helps in secreting the digestive juices in amoeba. And in humans, stomach and small intestine help in secreting the digestive juices.</p> | |
| 4235. |
EXERCISEQ.1. Identify the following changes as physical or chemical by putting the markphysical change) and 'C' (for chemical change) against them.P (for(a) Souring of milk(c) Growth of a plant(e) Cutting a piece of paper(g) Decay of dead plants and animals(i) Dissolving salt in water(k) Cooking of food(b) Rusting of iron objects□□□(d) Growth of a child(f) Burning of incense stick(h) Burning of candle□ ψ Melting of ice candy() Formation of cloud(n) Deforestation(m) Explosion of a cracker□(p) Melting of wax(o) Drying of wet clothes27 |
| Answer» <p>1.p. 5.c 2.c3.p4.p</p> | |
| 4236. |
5) The length of a metal rod increases by 1.2cm whenits temperature is increased to 390°C from 30°C.Determine the original length of the rod(o.- 2.75 x 10 3Pc) |
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| 4237. |
What do you mean by least count of vernier callipers ? |
| Answer» <p>The least count as the name suggests is the finest measurement you can take with the help of that Vernier calipers. It is measured by dividing the least count of the main scale by the total number of divisions on the Vernier scale. The Least Count (LC) of Vernier scale is given asLeast count =Least count of main scale / Number of divisions on Vernier scale.</p><p>Least count of the main scale:The main scale is calibrated in millimeters. To get the least count of the main scale, count the number of divisions on the main scale in one cm of it. Divide 1 cm into that much number of divisions; the value obtained is the least count of the main scale in cm. For example, if there are 10 divisions in one centimeter of the main scale its least count = 1/10 = 0.1 cm.</p><p>Number of divisions on Vernier scale:In most Vernier calipers, the Vernier scale has 10 divisions. Count the number of divisions on the Vernier scale. Use a magnifying glass if necessary.For most Vernier calipers least count of main scale = 0.01 cm and number of divisions on Vernier scale = 10 divisions. ThusLeast Count of Vernier calipers = 0.01/ 10 cmLeast Count of Vernier calipers= 0.001 cm</p><p>Since the least count of the Vernier caliper is 0.001 cm, it can be said that when measuring with the help this Vernier caliper, you can get an accuracy of 0.001 cm.</p> | |
| 4238. |
2Q.15 The length of a cylinder is measured with ametr rod havingleast count 0.1 cm. Its diameter is measured with vernicrcalipers having least count 0.01 cm. Given that length is5.0 cm. and radius is 2.0 cm. The percentage error in thecalculated value of the volume will be(a) 1%(c) 3%(b)(d)2%4% |
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| 4239. |
94The ammeter shown in figure consists of a 480 Ω coil connected in parallel to a 20 Ω shunt. Find thereading of the ammeter.4.10Ω20 V405350937350(C)A(D) A5073(B) 1A(A)A |
| Answer» <p>Total resistance of ammeter will be 19.2 ohm now total resistance in ckt will be 29.2 ohm. Current in circuit is 29.2/20 = 0.6479 = 50/73 A. </p> | |
| 4240. |
Matchtheitemsin column I with column IIPolar bearPenguinsColumn ILong, large beakb) Migrate to warmer regionefX Lion tailed Macaque.. 2 Birdsd)yr)f)Feet have webLong curved and strong clawsSilver white manesToucanLong tail |
| Answer» <p>6) Polar bear - Long curved and strong claws.7) Penguins - Feet have web8) Loin tailed macaque- Silver white Mane9) Birds - Migrate to warmer regions10) Toucan - Long, large beaks</p> | |
| 4241. |
12. More stable alkene thermodynamicallya)b)d) |
| Answer» <p> option b , least repulsion due to chair confirmation</p> | |
| 4242. |
7.7Twoparticles,eachofmassmandspeedu,travelin opposite directions along parallellines separated by a distance d. Show that the vector angular momentum of the twoparticle system is the same whatever be the point about which the angular momentumis taken. |
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| 4243. |
cm and AC 7 cm, find BOA 15 m 1from the ground on placing it against a wall at aistance a. Find the distance of the foot of the3.ong ladder reached a window 12 m highladder from the wall. |
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| 4244. |
Which organisms are calledprimitive and how are theydifferent from the so-calledadvanced organisms? |
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| 4245. |
Inference : Interactions between producers,consumers and saprophytes arealconsumers and saprophytes are calledEHOEEESCSESEPESRSPESS89s999RR9CeeR |
| Answer» <p>a food web is the interaction between thesewhereas a food chain depicts the flow of energy through the web</p> | |
| 4246. |
Ciame thepwhich |
| Answer» <p>Bhuj.. in Gujarat India </p><p>26th January - 2001</p> <p>Thank you </p> | |
| 4247. |
. What is menstruationand menstrual cycle ? What happens in the body of a female during menstrualcycle? |
| Answer» <p>Menstruation is the process in a woman of discharging blood and other material from the lining of the uterus at intervals of about one lunar month from puberty until the menopause, except during pregnancy.</p><p>The menstrual cycle is the regular natural change that occurs in the female reproductive system that makes pregnancy possible. The cycle is required for the production of oocytes, and for the preparation of the uterus for pregnancy.</p> | |
| 4248. |
what is ip forwarding |
| Answer» <p>IP forwarding also known as Internet routing which is a process used to determine which path a packet or datagram will be sent. The process uses routing information to make decisions and is designed to send a packet over multiple networks. Generally, networks are separated from each other by routers.</p> | |
| 4249. |
If the intensity of the incident radiation in a photo cell is increased, how does the stopping potential vary? |
| Answer» <p>The number of photoelectrons emitted per second from a photosensitive plate is directly proportional to theintensity of the incident radiation. The minimum negativepotentialapplied at the anode at which thephotoelectriccurrent becomes zero is calledstopping potentialor cut-offpotential</p><p>Intensityin photoelectriceffectdeals with the number of photons attacking electrons to produce current. It does noteffectthe kinetic energy of electrons. Hencestopping potentialof anode remains unchanged</p> | |
| 4250. |
a girl by a square shaped photo frame of side 9 cm find the area of photo frame? |
| Answer» <p>side of the frame=9 cmarea of the frame = side × side = 9cm × 9cm = 81 sq. cm </p> | |