Explore topic-wise InterviewSolutions in Science.

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.

4551.

1.Ribs of mammals are attached to(a) pelvic girdle(b) clavicles ( scapuia(d) sternum

Answer» <p>D) sternum is correct</p>
4552.

What are floating ribs5

Answer» <p>A rib is said to be "floating" if it does not attach to the sternum (the breast bone) or to another rib. There are usually 12 pairs of ribs in all. Each pair of ribs is attached to the building blocks of the spine (the vertebrae) in the back.</p>
4553.

xample 8.2 The odometer of a car reads2000 km at the start of a trip and2400 km at the end of the trip. If thetrip took 8 h, calculate the averagespeed of the car in km h1 and m s

Answer» <p>Actual distance = 2,400-2,000km=400km</p><p>Time taken = 8 hours </p><p>Average speed = Total distance÷Total time = 400km÷8hours = 50km/h</p><p>400km = 4,00,000 m8 hours = 28,800seconds</p><p>Average speed = Total distance ÷ Total time =4,00,000m÷28800seconds= 13.89m/s</p><p> </p> <p>2000 +2400 = 4400 /2= 2200</p>
4554.

2.3 A calorie is a unit of heat or energy and it equals about 4.2 J where lJ-1kgmSuppose we employ a nystem of units in which the unit of mass equals akg, the untof length equals p m, the unit of time is ys. Show that a calorie has a magnitude 4.2a'Byin terms of the new units.

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4555.

give reason why water vapour is different place varie from place to place

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4556.

What is meant by a network topology?

Answer» <p>Anetwork topologyis the pattern in which nodes (i.e., computers, printers, routers or other devices) are connected to a local areanetwork(LAN) or othernetworkvia links (e.g., twisted pair copper wire cable or optical fiber cable). There are four principaltopologiesused in LANs: bus, ring, star and mesh.</p> <p>Anetwork topologyis the pattern in which nodes (i.e., computers, printers, routers or other devices) are connected to a local areanetwork(LAN) or othernetworkvia links (e.g., twisted pair copper wire cable or optical fiber cable). There are four principaltopologiesused in LANs: bus, ring, star and mesh</p> <p>the arrangement of networks in the form of topology is called network topology</p> <p>Network Topologyis the arrangement with which computer systems ornetworkdevices are connected to each other.Topologiesmay define both physical and logical aspect of thenetwork.</p> <p>Network topology is the arrangement of the elements of a communication network. Network topology can be used to define or describe the arrangement of various types of telecommunication networks, including command and control radio networks, industrial fieldbusses and computer networks.</p>
4557.

Cakrwat the speed ot Light in a mediumwhese criical angl30

Answer» <p>Refractive index is given by, n = 1/Sin ic, where icis critical angle = 300So, n = 2As, n = c/v , where c - speed of light in vacuum and v is the speed of light in medium.So, speed of light in given medium (v) = c/n = 1.5×10^8m /sec</p>
4558.

Questions Based on Higher Order Thinking Skills (HOTS)7. Name two things that would become impossible without artificial satellites8. Sara's cousin stays in America. When it is day in India it is night in America. Can you ewhat causes this difference?9. Why does Christmas fall during summer in Australia?

Answer» <p>7. Aeroplane cannot he operated.</p><p>Mobiles cannot be used </p>
4559.

8. Raindrops of radius 1 mm and mass 4 mg are fallingwith a speed of 30 m/s on the head of a bald person.The drops splash on the head and come to rest.Assuming equivalently that the drops cover a distanceequal to their radii on the head, estimate the forceexerted by each drop on the head.

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4560.

8. Raindrops of radius 1 mm and mass 4 mg are fallingwith a speed of 30 m/s on the head of a bald person.The drops splash on the head and come to restAssuming equivalently that the drops cover a distanceequal to their radii on the head, estimate the forceexerted by each drop on the head.

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4561.

prakash pahle vastu par padta ya eye par

Answer» <p>Prakash pehle vastu par padta hai aur uske Baad wo phir reflect hoke hamare eye par padta hain.</p>
4562.

Draw the distance time graph for uniform motion.

Answer»
4563.

Q4. What information does a distance time graph give us?

Answer» <p>If an object moves along a straight line, the distance travelled can be represented by a distance time graph. In a distance time graph, the gradient of the line is equal to the speed of the object. The greater the gradient the faster the object is moving.</p> <p>It is also called as ST graph, it moves along a straight line</p>
4564.

What gocd habits muct wCultivate in order to uwater economically

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4565.

2. The general habits of a jackal [caCR

Answer» <p>Ans :- On first sight, a jackal could easily be mistaken for a wolf or perhaps a dog, but while these wild carnivores are related to the wolf family, they’re a species to themselves. Living across a variety of habitats on continents such as Asia and Africa, the jackal has entered into the folklore of peoples around the world, thanks to its cunning and fearsome howl. The culture of Ancient Egypt, for example, associated the jackal with its god of death, Anubis.</p>
4566.

NATime40 MSHORT ANSWER TYPE QUESTIONS (I MARK)VERY SHORT1. Define source of light.Ans.Are stars natural sources of light?Ans.2. Is candle the man-made source of light?Ans.Why opaque materials do not allow light to pass through them?Ans.5. Which gives us clear images?Ans.6Are earth and moon opaque objects?Ans.How many are kinds of shadows? Name them.Ans.8. When does a lunar eclipse occur?Ans.9. What is the function of periscope?Ans.10. What happens to our shadows, when we walk in the sunlight?

Answer» <p>1. light is form of light which produces sensation2.yes star is natural source of light3.yes ,candel is man made4.because of reflection5.mirror,smooth polished area.6.yes both are opaque.7.3 type8.when sun ,earth moon are very close then lunar eclipse occur9.periscope used in submarine.</p>
4567.

PAGE NOORIES!PTHow do the food habits of peoplevery Loops from place to place? CseptoExplain with help of an example

Answer» <p>Food habits are based on which crops are grown in that definite region. Whatever is grown in that region is easily and locally available and hence food recipes would be based more on that particular grain grown in that region.</p><p>Moreover, it is said, we should eat locally grown food since the soil where we are born and have stayed all life would be compatible to our body’s digestion and assimilation processes.</p><p>We also develop taste for the food we have eaten from childhood and for any new food type, we have to acquire the taste which is generally not possible. May be that is because of the compatibility of the soil with our body as I mentioned above.</p><p>Thus, Northen region food habits are based on grains like wheat and Rajma etc while Southern region food habits are based on rice.</p>
4568.

Whattype of impurity is to be dopped to get N-type semiconductorTrivalent(B) Tetravalent(C) Pentavalent(D) All of the above

Answer» <p>When anintrinsic semiconductorisdopedwith Trivalent impurityit becomes aP-Type semiconductor.</p>
4569.

Example 11 A person standing on a road has to hold his umbrella at 60P with the vertical tokeep the rain away. He throws the umbrella and starts running at 20 ms-1. He finds that rain dropsare hitting his head vertically. Find the speed of the rain drops with respect to (a) the road (b) themoving person.art in round thr nin is comin t bimatan anle 60 with

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4570.

What do you mean by ie

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4571.

Example 4.6 Rain is falling vertically witha speed of 35 m s. Awoman rides a bicyclewith a speed of 12 m s in east to westdirection. What is the direction in whichshe should hold her umbrella ?

Answer» <p>great sir</p>
4572.

ExercisesFill in the blanks in the following1.magnets are made in different shapes such asandB Artificiali) The Materials which are attracted towards ia) Paper is not amatentialf(v) In olden days, salors used to ind dirction bysuspennga(v) A magnet always haspcles

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4573.

5. What guided the sailors at sea in olden times?

Answer» <p>Celestial navigation requires the sailor to use an instrument, like a sextant, to find the angle between a star/planet and the horizon. The angle will tell the sailor is latitude. ... The astrolabe dates back to ancient Greece, when it was used by astronomers and mariners to help tell time and location.</p> <p>to the sailors magnent guided in olden times </p>
4574.

(i) Artificial magnets are made in different shapes such asand(i) The Materials which are attracted towards a magnet are called(ii) Paper is not amaterial(iv) In olden days. sailors used to find direction by suspending a piece of(v) A magnet always haspopoles

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4575.

ExercisesFill in the blanks in the following(u). Artificial magnets are made in different shapes such as1.and(ii) The Materials which are attracted towards a magnet are called(ii) Paper is not a material.(iv) In olden days, sailors used to find direction by suspending a piece d(v) A magnet always haspoles.

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4576.

E. LONG-ANSWER QUESTIONS: Answer these quesLUNU1. How is ravon made? Why is it called artificial silk? List its important properties and uses,of plastics linked to each of these

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4577.

If A and B denote the sides of a parallelogramand its area is h AB ( A and B are the magnitude ofA and 8 respectively), the angle betweenA and B is(a) 300(c) 450(b) 600(d) 1200

Answer» <p>A*B = ab sin theta thus ab sin theta =ab/2 therefore sin theta =1/2 hence theta =30 degree.</p>
4578.

MATEMATics2. Solve;(a) 18 187 (d)(d)2115 15 (e)7m uยง+31-3(-3)(f)(g)(h)44 3-2(i)23. Shubham painted of the wall space in his room. His

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4579.

.18.A stream of water flowing horizontally wia speed of 15 m/s gushes out of a tubecross-sectional area 10 m and hitsvertical wall. Find the force exerted on twall by the impact of water, assuming thit does not rebound.(Density of water103 kg/m3)

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4580.

A={1,2,3,4},B={2,4,6,8} AUB

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4581.

How are living organisms dependetituthat live in water inr totally independent of soil as a resuou have seen weather reports on television and in newspaperso you think we are able to predict the weather?201

Answer» <p>Meteorologists areable to predictthe changes inweatherpatterns by using several different tools.Theyuse these tools to measure atmospheric conditions that occurred in the past and present, andtheyapply this information to create educated guesses about the futureweather.</p> <p>Thank you so much </p> <p>Thank you so much </p>
4582.

4cm+3cm+2cm=

Answer» <p>4cm+3cm+2cm=9cmis the right answer</p> <p>9cm is the best answer </p> <p>4cm+ 3cm+2cm=9cm is the corrrect answar</p> <p>9cm is the correct answer </p> <p>9cm is the best answer</p> <p>9cm is the correct answer.</p> <p>9 cm is the correct answer. </p> <p>9cm</p> <p>9cm is correct answer</p> <p>the answer is 9 cm</p> <p>9cm .......is the right answer</p> <p>9cm is the correct answer</p> <p>9cm is fixed answer ok</p> <p>4+3+2=9cm is correct answer </p> <p>4cm+3cm+2cm = 9cm .Please accept me as the best.</p> <p>9cm is the right answer </p>
4583.

Define the term work. Show that work done is equal to thedot product of force and displacement vectors.

Answer» <p>Work is said to be done whenever there is a transfer of energy. Mathematically, it is the dot product of force and displacement.</p><p>Suppose we have two line AB and CD and θis the angle between them. The component of AB long CD is given by ABcos θ. This is what we get when we do dot product. A force can do some work only when it has a component along the direction of the displacement. Hence, we take dot product of the force and displacement to find work done.</p>
4584.

Force Types

Answer» <p>Applied ForceGravitational ForceNormal ForceFrictional ForceAir Resistance ForceTension ForceSpring Force</p> <p>Gravitationalforce, Electrictrostatic force,magneticforce, nuclearforce,muscular forcemechanical forcefrictionalforceare types offorce.</p>
4585.

the iupac name of neo pentane

Answer» <p>The preferredIUPAC nameis the systematicname2,2-dimethylpropane</p>
4586.

7. What are meristems? Name their typesand position in plants.

Answer» <p>Ans :-a region of plant tissue, found chiefly at the growing tips of roots and shoots and in the cambium, consisting of actively dividing cells forming new tissue.</p><p>3-Lateral meristem which involvescork cambiumandvascular cambium. In plants, depending on the position the meristematictissuesare grouped into three types: apical (at the tips), intercalary (in the middle) and lateral (at the sides).</p>
4587.

why is soil considered one of the most important natural resources?

Answer» <p>Soil is one of the most important and essential natural resources. Farmers and gardeners know this fact and go to great efforts to conserve it. They understand that when the soil is destroyed, then gardens will not be successful and good crops cannot grow. They also know that it takes a considerable amount of time for soil to form. Here we will look at elements that must come together in order to form soil.</p><p>Soils can effectively remove impurities, kill disease agents, and degrade contaminants. Typically, soils maintain a net absorption of oxygen and methane, and undergo a net release of carbon dioxide and nitrous oxide. Soils offer plants physical support, air, water, temperature moderation, nutrients, and protection from toxins. Soils provide readily available nutrients to plants and animals by converting dead organic matter into various nutrient forms.</p><p>Soil is made up of air, water, minerals and organic material and is one of the most important natural resources on earth. Most life on earth depends on soil as a direct or indirect source of food. Plants and animals source their nutrients from the soil and it is home to many different forms of life.</p>
4588.

3. Helps to insert a new record in a Form.4 Allows to arrange in descending or ascending order

Answer» <p>it is computer</p> <p>3. edit option4. sorting option </p>
4589.

4.State the differences between biennial and perennial plants.

Answer» <p>Biennials.Biennialplants complete their life cycle over two growing seasons. The first season they grow only foliage, commonly a low-growing rosette of leaves. The second growing season they form flowers and produce seeds; then, the mother plant dies. Common biennial flowers include foxgloves and Canterbury bells. But did you know that cabbage, kale, Brussels sprouts, carrots, and celery are also biennials? We usually harvest them in their first season of vegetative growth, so we never actually see the flowers.</p><p>Perennials. Horticulturists don’t often talk about aperennialplant’s life cycle. Rather, you may hear about a particular perennial’s lifespan. For example, you might hear that columbines are relatively short-lived, so you should plan to replant every few years. Perennial plants continue to grow and flower for more than two years—and many will live for decades. However, if we wanted to talk about a perennial’s lifecycle, we would need to look at how long it takes a particular plant to cycle from seed to seed.</p>
4590.

Exercises4Fill in the blanks:(a) Joints of the bones help in theof the body

Answer» <p>Joints of bones help in themovementof body</p>
4591.

1.Fill in the blanks:(a) Joints of the bones help in the ....................of the body

Answer» <p>joints of the bones help in the movement of the body</p>
4592.

Exercises1. State differences between acids and bases.

Answer» <p>acids :1 these are sour to taste 1</p> <p>Acidis a kind of chemical compound that when dissolved in water gives a solution with H+ ion activity more than purified water. Abaseis an aqueous substance that donates electrons, accept protons or release hydroxide (OH-) ions.</p>
4593.

Exercisesill in the blanks:)Joints of the bones help in theof the body

Answer» <p>movement </p><p> </p>
4594.

The resistance of the circuit between A.....!(23 0.57(3) 24

Answer» <p>There is a wheatstone balanced bridge so middle resistances will be removedhénce 2r//2r= r </p> <p>option 1,r is the right answer</p> <p>Option A (r) is write answer for the following question.</p> <p>option A(r) is the right answer</p> <p>1 i sthe correct answer</p>
4595.

3 Ifloglog+log211 then the value of xa) 64b) 46 c) 444 Find tan if 3 tan'e -43 tane+3-0iff(x)-x12, show thatf[f(x)]=xSection-BX +Section-C6 Describe the following sets in set-Builderta) 1-6,-4,-2,0,2,4,6)1,2.3,4,5,6,.8c) (0)2 345 6789t12

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4596.

2. Differentiate between the following(a) Dominance and Recessive(b) Homozygous and Heterozygous(c) Monohybrid and Dihybrid. /

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4597.

In a monohybrid cross between two heterozygousindividuals, the number of pure homozygous individualsobtained in Fi generation is[Odisha JEE 2012]

Answer» <p>50%</p><p>Reason: Let us consider a monohybrid cross between two tall heterozygous plants (Tt). The genotype of the offspring in F1 generation will be, TT, Tt,Tt, and tt. Hence half of the offspring (i.e 50%) are pure homozygous.</p>
4598.

68. Equimolar solutions of HE, HCOOH and HCN298 K have the values of K, as 6.8 x10, 1.8 x10 an4.8 x109 respectively. What will be the order of theacidic strength?(a) HF &gt; HCN &gt; HCOOH(b) HF&gt; HCOOH&gt; HCN(c) HCN &gt; HF &gt; HCOOH(d) HCOOH &gt; HCN &gt; HF'﹀

Answer» <p>Like my answer if you find it useful!</p>
4599.

What is the difference between Prokaryotic andEukaryotic flagellum?

Answer»
4600.

के. bkARG 1 geiak g2 § 2ap LOLXY'L कद, bigachieb 2 225 BYRS v ¢ सु 5Ty iyl s29000 L bk gy (8 20l g e. कि

Answer» <p>bharat ka rashtriye pakshi kon hai</p>