InterviewSolution
Saved Bookmarks
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.
| 4401. |
nerve fibre |
| Answer» <p>Ans :- An axon, or nerve fiber, is a long, slender projection of a nervecell, or neuron, in vertebrates, that typically conducts electrical impulses known as action potentials away from the nervecell body.</p> | |
| 4402. |
t are insoluble materials? Give two examples |
| Answer» <p>An insoluble substance is one that does not dissolve. Eg: sand, fats, wood, metals, and plastic</p> | |
| 4403. |
119. A stationary wave is set up in a resonance aircolumn of a glass tube partially filled with waterby holding a tuning fork near open end, the openend of the tube is :(NCERT 1976)(a) Always a nodetot Always an antinode(c) Some times a node and some times anantinode |
| Answer» <p>The antinode is not exactly formed at the open end, but at a small distance above the open end. This is called the end correction</p> <p>b. </p> | |
| 4404. |
Martina needs a box which can absorb heat from the sun very fast but loses it very slowly.How should the outer and the inner surface of the box be coloured so that Martina gets the bestresult?(a) Outer - Silver, Inner - Silver(b)Outer - Black, Inner - Silver(c)Outer - Silver, Inner - Black(d)Outer - Black, Inner - Black |
| Answer» <p>Ablackobjectabsorbsall wavelengths of light and converts them intoheat, so the object gets warm. A white object reflects all wavelengths of light, so the light is not converted intoheatand the temperature of the objectdoesnot increase noticeably.</p> <p>Actual answer is what</p> <p>tell me actual answer</p> | |
| 4405. |
define matter. name the state of matter in which the force of attraction between the particles is : 1. strongest 2. weakest |
| Answer» <p>Any substance which has mass and occupy space is considered to be a part of matter.</p><p>1. Solids have strongest intermolcular forces of attraction.</p><p>2. Gases have weakest forces of attraction.</p> | |
| 4406. |
cctocssy thingsSilver is considered the best conductor of electricity, though itis not used for making cables and wire.Why?2. |
| Answer» | |
| 4407. |
32. A ball of mass 150 g moving at 20 m/s is hit by a force whichacts on it for 0.1 s. Then, the impulse force is |
| Answer» <p>Acceleration = change in velocity/time = (0 - 20) /0.1 = -200m/s²</p><p>To calculate force take Acceleration to be positive</p><p>Force = mass x Acceleration = 150/1000 x 200 = 30 N</p> <p>its solving style isn't good</p> | |
| 4408. |
1. When two forces in the same direction act on an object, then the resultant magnitudeof the forces acting on the object isa. the sum of the two forcesb. equal to the smaller forcec. the difference between the two forcesd. equal to the larger force |
| Answer» <p>the sum of two forces</p> <p>a. the sum of the two forces</p><p>Iftwo forces acton an objectin thesame direction, thenet forceis equal to the sum of thetwo forces.</p> <p>a . sum of the two forces , is the right answer </p> <p>the sum of two forcer</p> <p>c. the difference between the two forces</p> <p>a . sum of two forces</p> <p>The sum of two force</p> <p>a the sum of two force</p> <p>a wala hoga bhai like kardo yaar</p> <p>a sum of the two forces</p> <p>The sum of two forse</p> <p>a . the sum of the two forces</p> <p>the sun of the two forces is the correct answer in this question </p> <p>option a is write answer</p> <p>the sum of the two forces</p> <p>the option a is the answer sum of the two forces</p> <p>The correct option is A.} The sum of two forces</p> <p>the sum of two forces </p> <p>a) is the correct answer</p> <p>correct answer is the sum of the two forces</p> <p>the sum of forces is correctplease like my answer</p> | |
| 4409. |
underagivenlau.vlat9.2 Figure 9.11 shows the strain-stress curve for a given material.modulus and (b) approximate yield strength for this material?What |
| Answer» <p>thanks</p> | |
| 4410. |
(1) Which planet is nearest to the sun?Ans.(2) At what position is the Earth from the Sun?Ans.(3) Which planet is placed between the Earth and MercuryAns.(4) Name the planets beyond the orbit of Mars in serial orderAns.(5) Name the planet in the solar system that is furthest from the Sam.Ans. |
| Answer» <p>1. mercury 2. third3. venus4. earth and Jupiter 5. pluto</p> <p>1. mercury2. third 3. Venus 4. earth and Jupiter5. pluto</p> <p>(1) MERCURY(2) 3rd(3) VENUS(SISTER OF EARTH) (4) JUPITER AND SATURN(5) NEPTUNE(AS PLUTO IS NOT IN OUR SOLAR SYSTEM) </p> <p>1. Mercury2. Third3. Venus4. Earth and Jupiter5. Pluto</p> <p>1) Mercury2)third3)Venus4)earth , Jupiter5) Neptune</p> | |
| 4411. |
3: Why do we say that the wheel of a car undergoes combined motion? |
| Answer» <p>because wheel has both translational and rotational motion both at the same </p><p>translational Motion helps move forward horizontally</p><p>and rotational motion change the point, that is moving horizontally. </p> | |
| 4412. |
The first organic compound prepared in thelaboratory wasa) Acetic acidc) Urea57.b) Acetylened) Methane |
| Answer» <p>The answer to this is Option C.</p> | |
| 4413. |
(1) An object in motion continuously undergoes |
| Answer» <p>Acceleratingobjectsareobjectswhich are changing their velocity - either the speed (i.e., magnitude of the velocity vector) or the direction.</p> | |
| 4414. |
(a) How is sound produced ? |
| Answer» <p>Soundisproducedwhen something vibrates. The vibrating body causes the medium (water, air, etc.) around it to vibrate. Vibrations in air are called traveling longitudinal waves, which we can hear.Soundwaves consist of areas of high and low pressure called compressions and rarefactions, respectively.</p> | |
| 4415. |
шс mdinere lunes norc neat and llence mgli telliperature making it bright hotA 60W and a 100W bulb are joined in series and connected to the mains 220 V. Whichbulb will glow brighter? |
| Answer» <p>Resistance of of 60 Watt bulb is more than 100 Watt as resistance = V^2/Wattage</p><p>When these bulb are connected in series than current in both bulb is same, and Watt consumed can be given as i^2 x R, as Resistance of 60 W bulb is more than 100W bulb, so it will consume more power and glow brighter than 100W bulb.</p><p>When these bulb are connected in parallel, voltage across both bulb is same and power consumption will be V^2/R. In this case bulb with low resistance will consume more power and glow brighter than the bulb with high resistance, so 100W bulb will glow brighter than 60W bulb.</p> | |
| 4416. |
b) Name two types of Alluvial Soil. |
| Answer» <p>The alluvial soilfound in India, particularly intheIndo–Gangetic plain, is oftwo types: khaddar (pale brown, sandy clays to loamy, less calcareous and carbonaceoussoil, and found inthelow areas of valley that are regularly flooded) and older bhangarsoils(dark colored, mostly clayey, and containing lime nodules</p> | |
| 4417. |
Write the differences between ac and dc current. |
| Answer» | |
| 4418. |
8. What is excretion? |
| Answer» <p>Excretion is a process by which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell. Excretion is an essential process in all forms of life.</p> <p>Excretion is a process by which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell. Excretion is an essential process in all forms of life.</p> <p>Excretion, the process by which animals rid themselves of waste products and of the nitrogenous by-products of metabolism. Through excretion organisms control osmotic pressure—the balance between inorganic ions and water—and maintain acid-base balance.</p> <p>excretion is the process by which metabolic waste is eliminated from an organism.</p> <p>The waste product that comesout from our body is known as excretion </p> <p>Excretion, the process by which animals rid themselves of waste products and of the nitrogenous by-products ofmetabolism. Through excretion organisms control osmotic pressure—the balance between inorganic ions and water—and maintain acid-base balance. The process thus promoteshomeostasis, the constancy of the organism’s internalenvironment.</p> <p>excretion is the process of removal of metabolic wastes from the body of an organism through excretory organs </p> | |
| 4419. |
what is an acute and chronic disease |
| Answer» <p>Acute conditionsare severe and sudden in onset. This could describe anything from a broken bone to an asthma attack. Achronic condition, by contrast is a long-developing syndrome, such as osteoporosis or asthma. Note that osteoporosis, achronic condition, may cause a broken bone, anacute condition.</p> | |
| 4420. |
Nutrition In Human Beings |
| Answer» <p>We get nutrition by eating a balanced diet which involves all types of foods and nutrition required for our body in correct proportion</p> <p>Ingestion: The process of taking food into the body is called ingestion.</p><p>Theprocess of nutrition in human beingsis called as digestion.Human beingsconsist of specialized organs for theprocessof digestion called as digestive system.Digestive system includes.</p><p>Digestion: the process in which the foodcontaining large, insolublemolecules is broken downinto small, water soluble molecules is called digestion</p><p>Absorption: Theprocess in which the digested food passes through the intestinal wallinto blood stream is called absorption.</p><p>Assimilation: The processin which the absorbed food is taken in by the body cells and used for energy, growth and repair is called assimilation</p><p>Egestion: The process in which the undigested food is removed from the body is called egestion.</p> | |
| 4421. |
Excretion in human beings |
| Answer» <p>Ans :- Humanshave two kidneys and each kidney is supplied with blood from the renal artery. The kidneys remove from the blood the nitrogenous wastes such as urea, as well as salts and excess water, andexcretethem in the form of urine. ... The filtrated blood is carried away from the kidneys by the renal vein (or kidney vein).</p> | |
| 4422. |
19" Which pair of gases diffuses with same rate through an orifice?(1) NO, CO(2) CHa, O2(3) NO2, CO2(4) NO, C2H6 |
| Answer» <p>The answer is Option 4.</p> | |
| 4423. |
What is air pressure ? Name three ways we make use of air pressure. |
| Answer» <p>It keeps your car riding on air-in the tires. Your furnace may blow large quantities at verylowpressure to heat your home. You think you suck liquids thru a straw, but it really is atmospheric pressure that pushes the liquid. Similar for a vacuum cleaner.Air pressuredefinition,theforce exerted byair, whether compressed or unconfined, on any surface in contact with it.</p> | |
| 4424. |
Where do the life processes of unicellular organisms take place! |
| Answer» <p>Ans :- It is a unicellular algae and is one of the largest unicellular organisms that exists. They can be found in theCaribbeanand as far north asFlorida. They are usually solitary, but can sometimes be found in small groups.</p><p>Although some prokaryotes live in colonies, theyarenot specialised into cells with differing functions. These organismslive together, and each cell must carry out alllife processesto survive.</p> <p>wrong</p> | |
| 4425. |
Two blocks of masses 5 kg and 2 kg placed on a frictionless surface are connected by a spring. An externalkick gives a velocity of 14 m/s to the heavier block in the direction of the lighter one. Calculate the velocitygained by the centre of mass. |
| Answer» <p>momentum of first ball=momentum of second ballm1v1=m2v25*14=2*V2V2=35m/secvelocity of centre of massvcm=m1v1+m2v2/M1+M2=5*14+2*35/75*2+2*510+10=100m/s</p> | |
| 4426. |
e focal length of a convex mirror whose radius of curvature 1s32 cm. |
| Answer» | |
| 4427. |
ACto DC is converted by?a. Power cable1.b. Power Supplyc. Power bank |
| Answer» <p>A rectifier is an electrical device thatconvertsalternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. .</p> <p>choose the correct answer</p> | |
| 4428. |
Mention two ways by which we can reduce air pollution.Why should we not breathe air through our mouth? |
| Answer» <p>Conserve energy – remember to turn off lights, computers, and electric appliances when not in use.</p><p>Use energy efficient light bulbs and appliances.</p><p>Participate in your local utility's energy conservation programs.</p> | |
| 4429. |
At an individual level, how can you help reduce air poliution? |
| Answer» | |
| 4430. |
in cockroaches, air enters the body through |
| Answer» <p>Cockroaches breathe througha system of tubes attached to their spiracles. Spiracles are small valves along acockroach'sbody that allows air into the trachea, much like gills do for a fish. This system of tubes is called the tracheae; thuscockroachesare not dependent upon a windpipe and mouth tobreathe.</p> <p>thanks bro</p> | |
| 4431. |
Handles of utensils are made of plastics. |
| Answer» <p>The handles of cooking utensils are made up of plastic or wood because plastics and wood are bad conductor of heat. As they are bad conductors of heat therefore they won't be able to pass the heat of the flame to the person's hand and will prevent the person from burns or any other injuries.</p> | |
| 4432. |
Plastic is a polymerlastic is of two kinds-Thermoplasticifferent chemicals, acids, oils, spices, pickles, etc. at shopsastic confainers. It is also used in agriculture and medical fields2. Thermosetting Plasticenvironmental pollution, the 4R concept given below, shoud b4. RecoverreduceReduce2. Reuse3. RecycleEXERCISEk (the correct option:Material which is used to make non-stik utensils of kitchen:(a) PVC(c) TeflonOf the following, in which emun all(b) Polythene(d) Rayon |
| Answer» <p>Non-stick cookware is a common application, where the non-stick coating allows food to brown without sticking to the pan. Non-stick is often used to refer to surfacescoatedwith polytetrafluoroethylene (PTFE), a well-known brand of which is "Teflon...</p><p>option C is the most suitable.</p> | |
| 4433. |
What is the hybridisation of carbon atom indiamond and graphite? |
| Answer» <p>what</p> | |
| 4434. |
Name the organs of skeletal system |
| Answer» <p>The skeletal system is made up of bones and cartilage. There are two types of connective tissues called tendons and ligaments that are also considered a part of the system.</p> | |
| 4435. |
1.How does the skeletal system help us?eck |
| Answer» <p>SupportThe main job of the skeleton is to provide support for our body. Without your skeleton your body would collapse into a heap. The skeleton is strong but light. Without bones you'd be just a puddle of skin and guts on the floor.</p><p>ProtectionThe skeleton also helps protect your internal organs and fragile body tissues. The brain, eyes, heart, lungs and spinal cord are all protected by your skeleton. The cranium(skull) protects your brain and eyes, the ribs protect your heart and lungs and yourvertebrae(spine, backbones) protect your spinal cord.</p><p>MovementBones provide the structure for muscles to attach so that our bodies are able to move.Tendonsare tough inelastic bands that hold attach muscle to bone.</p> | |
| 4436. |
c) How do traffic signs help us? |
| Answer» <p>Traffic signals helpin controlling pedestrian and vehicletrafficby means of assigning the prioritiestosometrafficmovementstostimulate the flow oftraffic. ... It increases thetraffichandling capacity of a certain intersection. It makes the movement oftrafficin a certain intersection in order</p> | |
| 4437. |
1. Name the unit of (a) electrical resistance (b) resistivity2. What is electric fuse? What material is used for fuse wire? |
| Answer» <p>1.a) elecrical resistance-ohmb) resistivity-ohm m2.In electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit. Its essential component is a metal wire or strip that melts when too much current flows through it, thereby interrupting the current.Most LV fuse elements are made of copper (Cu). Silver plated copper is also commonly used. As a rule, fuse elements of time delay fuses contain low melting point materials, e.g. tin (Sn) or zinc (Zn) and alloys thereof.</p> | |
| 4438. |
wer the questions:How does wearing clothes help us? |
| Answer» <p>It help us to feel comfortable, to cover up a multitude of sins, for protection against rain and cold (sports), to invest in beautiful things (couture, etc.), to feel better about themselves.</p> | |
| 4439. |
Name any two heating appliances. Explain the use of resistance and insulating base in makingappliances |
| Answer» <p>Light bulb , electric iron, heater are based on heating by electric current. For example, bulb starts glowing after it is heated, the tungsten wire of electric bulb on passing electric current heats up so much and starts to glow and emit light.</p> | |
| 4440. |
Theadjoining figure shows a force of 40 N pulling a body of mass 5kg in a direction 30" above the norzontale body is in rest on a smooth horizontal surface. Assuming acceleration of free-falil is 10 mis? Which ot thefollowing statements I and Il is/are correct?40N30"SkgI. The weight of the 5 kg mass acts vertically downwardsI. The net vertical force acting on the body is 30 N(A) Only I(C) Both I and II(D) of them(B) Only II. |
| Answer» <p>option b)The weight of the 5kg mass acts vertically downwards</p> | |
| 4441. |
write the steps you would for making tea use the word solution |
| Answer» <p> For making tea, first of all we will take desired cups of water as solvent in a tea pan. Then it is allowed to boil on stove. Tea leaves, as salute is added to it and brewed. While brewing , the colour of water as solvent gets changed to tea colour as soluble part of tea as salute gets dissolve in heated water as solvent. There after, milk is added to it as solute and is further allowed to boil for some times. Insoluble tea leaves as residue are removed by passing the mixture through a tea strainer. Sugar as solute according to need is added to filtrate so obtained and stirred with spoon. Sugar gets dissolve in filtrate. Resulting solution is in the form of Tea,ready for use.</p> | |
| 4442. |
A force of 3000 N is acting on a charge of 3 coloumb moving in a uniform electric field. The potential differencebetween two point at a distance of 1 cm in this field is(2) 90V(3) 1000V(4) 9000V |
| Answer» <p>The answer is Option 1.</p> <p>you are wrong.The and is 90V.</p> | |
| 4443. |
u want to buy a house. Would vou like to buy a house having windowsut no ventilators? Explain your answer. |
| Answer» | |
| 4444. |
electric field |
| Answer» <p>a region around a charged particle or object within which a force would be exerted on other charged particles or objects.</p> | |
| 4445. |
what is solar system |
| Answer» | |
| 4446. |
b) only thunder occursc) thunder is followed by lightningd) thunder and lightning occur separatWhich of these is seen only in a tornadea) lightningc) eyeb) rotating wind fd) thunderFor peer assessmentbjective-type questionsFill in the blanks.Wind speed is measured using a/anAirThe main cause of wind istemperature between any two regions.on heatingin |
| Answer» <p>1) an anemometer2) expands3) change</p> | |
| 4447. |
4.Sodium metal is kept under?a. Water.b. Alcohol.c. Petrol.d. Kerosene. |
| Answer» <p>Sodium metal is kept under kerosene.</p> | |
| 4448. |
el took tall pea plants and short pea plants and producedfertilisation. What did Mendel observe in the Fi progeny ?pgeltly |
| Answer» <p>Mendelproposedthat, during reproduction, the inherited factors must separate into reproductive cells. He had observed that allowing hybrid pea plants to self-pollinate resulted in progeny that looked different from their parents.</p> <p>Mendel observation on monohybrid cross- law of domanance and law of segregation.and in dihybrid cross-law of independence assortment.</p> | |
| 4449. |
A radioactive sample at any instant has its disintegration rate 5000 disintegrations perminute. After 5 minutes, the rate is 1250 disintegrations per minute. The decayconstant per minute is33. |
| Answer» | |
| 4450. |
which type of mixture will be formed when iron filings and sulphur powder are mixed together? |
| Answer» <p>heterogeneous mixture</p> <p>heterogeneous mixture</p> <p>heterogeneous mixture</p> <p>heterogeneous mixture is the right answer</p> | |