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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.
| 301. |
Write the function of the following.i) Plumule. ii) cotyledon iii) Radicle |
| Answer» <p>Plumulegives rise to shoot. Its function is to form leaves and make photosynthesis possible.</p><p>Radicle gives rise to the root. The primary root, or radicle, is the first organ to appear when a seed germinates. It grows downward into the soil, anchoring the seedling.</p><p>Cotyledon is a modified leaf of the embryo inseed-bearing plants, that emerges from a germinating seed. Main purpose of cotyledon is storage or absorption of food reserves.</p> | |
| 302. |
2) Write the function of the followingi) Plumule. i) cotyledon ii) Radicle. |
| Answer» <p>Theplumuleis that part of the embryo above thecotyledons, from which develops the shoot proper, consisting of stem, leaves, and flowers. It may vary much in size and development.</p> <p>no your answer is wrong</p> <p>Coteleden is a sticky part of a seed as it stores the baby plant (embryo) </p> | |
| 303. |
.Find the perimeter of a regular six sided polygon whose each side is 8.3 cm. |
| Answer» <p>Perimeter of six regular side polygon = 6× side = 6× 8.3 cm = 49.8 cm</p> | |
| 304. |
Which is NOT the property of temporary magnet?a) Strength can be variedc) Magnetization can be controlled N & S poles are always permanentb) Polarity can be changed |
| Answer» <p>A, C, B are the properties of temporary magnet but N and S poles are not always permanent so D is answer </p> | |
| 305. |
IV. Short Answer Questions.What are planets? |
| Answer» <p>Aplanetis anastronomical bodyorbitingastarorstellar remnantthat is massive enough to beroundedby its owngravity, is not massive enough to causethermonuclear fusion, and hascleared its neighbouring regionofplanetesimals.</p> <p>planets are heavenly bodies that move around the sun in their fixed elliptical paths called orbits</p> | |
| 306. |
(1')iheatfanmănsid oncie..294k_300 k'.Har mancÄą a.efic, ccito!ns tcnsferto om |
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| 307. |
#Values and Life Skills(Practical application of knowledge)Gautam's father has got the iron gate and iron grills of his house painted. What do you think is the reasonbehind this? |
| Answer» <p>rusting iron. Is the right reason.</p> <p>His father had got the gate and grills paints as they are made of iron and painting them prevents corrosion of iron</p> <p>rusting iron .is the right reason.</p> <p>the reason he painted the grills and gate is to prevent it from rusting and this process is called Galvanisation </p> | |
| 308. |
what is the reason behind muscle cramps? how can a body massage or a hot bath be useful in relieving one of the muscle cramps? |
| Answer» <p>A muscle cramp is a sudden and involuntary contraction of one or more of your muscles. If you've ever been awakened in the night or stopped in your tracks by a sudden charley horse, you know that muscle cramps can cause severe pain. Though generally harmless, muscle cramps can make it temporarily impossible to use the affected muscle.</p><p>Staying active is a great way to prevent muscle spasms since people who are physically fit maintain more muscle mass and usually have less inflammation, plus they tend to be more flexible. Proper warm-ups and cool-downs before and after exercise can help prevent muscles from becoming overly fatigued, strained or pulled.</p><p>Epsom saltis naturally rich in magnesium that seeps into your skin to reach tense muscles when you add itto a warm bath. Epsom salts are an easy way to prevent magnesium deficiency, ease stress, soothe muscles and detoxify the body.</p> <p>short answer</p> | |
| 309. |
Write the correct option number showing the answer in the box.1) Weight of leaf is increased.2) Stem of plant 'is flexible.3) Plant starts growing towards a support.Plant starts growing towards sunlight |
| Answer» <p>Picture shows that plants always grow towards sunlight. Hence leafs are fased upwards.</p> | |
| 310. |
How is the movement of leaves of the sensitive plant different from themovement of a shoot towards light? |
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| 311. |
h the artides gøven in Chuen 1 with the artickeis hCohaColumn fSweaterCoton bollsDhotiGunny bagsNCEKT ExeCilumn I2G) Cotton6) WoolG) Cinniny(v) Jute |
| Answer» <p>sweater - woolcotton bolls - cottondhoti - ginninggunny bags - jute.</p> <p>are you sure</p> <p>yes. </p> | |
| 312. |
A wire of given material having length l and area of cross-section Ahas a resistance of4 Ω. What would be the resistance of another wireof the same material having length 1/2 and area of cross-section 2A? |
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| 313. |
24.5.State two ways of magnetising an iron piecÄ, |
| Answer» <p>1. Rub iron peice on a magnet several times, this will magnetise iron peice.</p><p>2. Magnetic Induction is one of the ways making magnetic materials like steel and iron into magnets.</p> | |
| 314. |
to the surface of the body.c) Parallel d) Coplanar4. Pressure actsa) Normalb) Linear |
| Answer» <p>Pressure acts normal to the surface of the body. </p> | |
| 315. |
Observation TableExampleType of ConsumersProducersPrimary ConsumersSecondary ConsumersApex or top consumersOmnivores |
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| 316. |
UJITWIllHeverPeucHhe8anD-3.a The figure shows the variation of energy with the orbit radius of a body in circularplanetary motion. Find the correct statement about the curves A, B and C(A) A shows the kinetic energy, B the total energy and C the potential energy of(B) C shows the total energy, B the kinetic energy and A the potential energy of(C) C and A are kinetic and potential energies respectively and B is the total(D) A and B are the kinetic and potential energies respectively and C is the totalthe systemthe systemenergy of the systemenergy of the system. |
| Answer» <p>Option B is correct because P.E increase with increase in radius of orbit while K E decrease.</p> | |
| 317. |
In SI unit, the angular acceleration has the unit ofA) NmkgC) rad s(B) ms(D) Nkg-Iueral gravitational cons |
| Answer» <p>Angular accelerationis the rate of change ofangularvelocity. In three dimensions, it is a pseudovector. InSI units, it is measured in radians per second squared (rad/s^2)</p> | |
| 318. |
12. A tile is a square of side 20 cm. How many suchtiles would be required to cover the floor of auare bathroom of side 3 m? |
| Answer» <p>From which book have you taken this question? Please tell us so that we can provide you faster answer.</p> | |
| 319. |
the state ol mouo oJ2. Give two examples of situations in which applied force causes a change inthe shape of an object. |
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| 320. |
PRUS saidDeninascillatonymotion. |
| Answer» <p>oscillatory motion can be termed as repeated motion in which an objects repeats the same movement over and over</p> <p>The motion in which an object moves to and fro or back and forth .</p> | |
| 321. |
-A man buys an article forき150 and makes overhead expenses which are 10% of the costprice. At what price must he sell it to gain 20%? |
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| 322. |
How benzene is converted into n -propybenzene(A) Friedel - crafts Alkylation(B) Friedel - crafts Acylation(C) Friedel - crafts Alkylation followed byclemmensen reductionFriedal - crafts Acylation followed byclemmensen reduction(D) |
| Answer» <p>Friedel – Craft acylation with propionyl chloride followed by Wolff – Kishner reduction</p> | |
| 323. |
ccountforthe following() pK, of aniline is more than that of methylamine.ii) Ethylamine is soluble in water whereas aniline is not.(iil) Methylamine in water reacts with ferric chloride to pferric oxide.(iv) Although amino group is o- and p- directing in arorsubstitution reactions, aniline on nitration gives a subsm-nitroaniline.(v) Aniline does not undergo Friedel-Crafts reaction.(vi) Diazonium salts of aromatic amines are more stable thanamines. du o resonanctvii) Gabriel phthalimide synthesis is preferred for synthesisinrrange the following:(i) In decreasing order of the pK, values: |
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| 324. |
dium (Sc) arldwere the criteria used by Mendeleev in creating his periodic table ? |
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| 325. |
ODAAYDefine one Parsec .Express it in termsof meters.20:46 |
| Answer» <p>One parsec is equal to about 3.26 light-years in length.</p><p>1 parsec = 3.0857×10^16m</p> | |
| 326. |
IUPAC name of CH,-CHCI-CH2-CHO Ä°S1) 2-chloro-4butanol3) 2-chloro-4butanal2) 3-chlorobutane4)3-chlorobutanal |
| Answer» <p>3-chlorobutanal is the IUPAC name</p> | |
| 327. |
Write structures and IUPAC names ofdifferent structural isomers of alkenescorresponding to C5H10 |
| Answer» <p>Please hit the like button if this helped you.</p> | |
| 328. |
Write structures and IUPAC names ofdifferent structural isomers of alkenescorresponding to C5Hoth |
| Answer» <p>Please hit the like button if this helped you.</p> | |
| 329. |
s:25. A body is projected vertically upward from the surface of the earth, its velocity- time graph i |
| Answer» <p>b....</p> | |
| 330. |
10. Express the first quantity as a percentage of the secondquantity(i) 5 of 50(ii) 18 L of 120 L |
| Answer» <p>15%is correct answer </p> <p>15% is the correct answer </p> <p>the original answer is 15% </p> <p>15% the correct answer of the given question</p> <p>5/50 ×100=10%18/120 ×100=15%</p> <p>10% and 15% is the answer of the following</p> <p>1) 5/50×100=5×2=10%2) 18/120×100=3/2×10=3×5=15%</p> <p>this question answer is 10% & 15% of the following question</p> <p> 5/50(100) is equal to 10%</p> | |
| 331. |
No rainfall for a year or more may lead to _____________ in that region. |
| Answer» <p>droughts </p> | |
| 332. |
write the names and molecular formula of two organic compounds having functional group suffixed as-oic acid with the help of a balanced chemical equation and explain . what happens when any one of the them reacts with a sodium hydroxide |
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| 333. |
What is a balanced chemical equation? Why should chemical equations bebalanced? |
| Answer» <p>A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products.it is necessary to balance the chemical equations so as to obtain the right amount of substances used </p> | |
| 334. |
State an example for a situation mentioned below in which a forca) changes the speed of an objectb) changes the shape of an objectc) changes the direction of an object. |
| Answer» <p>Examples in Which Force changes the speed of an object which is moving:</p><p>--->When a batsman will hit the ball with bat, the speed of moving ball changes.</p><p>---> When a person apply the brakes in car, suddenly the car comes to rest with decrease in speed.</p><p>---> When Fielder catches the ball, the speed of ball decreases.</p><p>--->When we pull the trolley, the speed of trolley increases.</p><p>When you bounce a ball, the wall of the ball is temporarily compressed.</p><p>When your car tries to move a tree, but instead dents its bumper.</p><p>When you squeeze a lump of clay (or dough).</p><p>When a ball thrown up, it will changes its direction while the ball the maximum height.(Gravitational pull); </p> <p>thanks </p> <p>a) When you catch a cricket ball and hence decrease its speed.</p><p>b) When you squeeze a mud ball.</p><p>c) When you kick a moving ball in other direction.</p> | |
| 335. |
74.Define 1 kgf. |
| Answer» <p>It is the force due to gravity on a mass of 1kg. (kilogram), 1 kgf = 9.8 N.</p> <p> 9.8 Newton </p> <p>so simple 1kgf means to gravity which is 9.8N</p> | |
| 336. |
1. Describe the different types of motion with examples. |
| Answer» <p>There aredifferent types of motion: translational, rotational, periodic, and non periodicmotion. Atype of motionin whichallparts of an object move the same distance in a given time is called translationalmotion.Examplesare vehicles moving on a road, a child going down a bird flying in the sky.</p> | |
| 337. |
Why the loss of blood donated by the donor recovered quickly? |
| Answer» <p>as the blood is reproduced by heart again and again.</p> | |
| 338. |
41 Donor type impurities(A) must have only three valence electrons(B) Create holes(C) can be added to germanium(0) must have only five valence electrons |
| Answer» <p>option (b) is the right answer</p> <p>D is right answer of this question</p> <p>it create hole or b is the right answer</p> <p>option b is the right answer</p> | |
| 339. |
(d) 1000 x 2.61 |
| Answer» <p>2610 is the correct answer of given question</p> <p>correct answer is 2.61×10002110</p> <p>2,610 is the right answer </p> <p>correct answer is 2.61×1000 2610</p> <p>2610 is the correct answer</p> <p>1000×2.61=2610.00=2610 is a best ans</p> <p>2610.00 is the right Answer</p> <p>right answer is 2610</p> <p>correct answer 1000x2.61 =2610</p> <p>1000×2.61=2610 is correct answer.</p> <p>2160 </p> | |
| 340. |
What is the difference between displacement and double displacement reactions?Write equations for these reactions. |
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| 341. |
6. What is a virtual image? Give one situation where a virtual image isformed.n ronrave lens |
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| 342. |
A magnet always haspoles. |
| Answer» <p>A magnet always has two poles.</p> <p>A magnet always has two poles. </p><p>please hit the like button if this helped you</p> | |
| 343. |
A magnet always has____poles. |
| Answer» <p>a magnet always has two poles that is north and south poles.</p> | |
| 344. |
(v) A magnet always haspoles. |
| Answer» <p>A magnet always has two poles.</p> | |
| 345. |
v) A magnet always haspoles. |
| Answer» <p>Ans :- Two poles</p><p>The opposite end is called the southpole. The needle ofa compassis itselfa magnet, and thus the northpoleofthe magnet alwayspoints north, except when it is near a strongmagnet. The rule formagnetic polesis that likepolesrepel each other and unlikepolesattract each other.</p> | |
| 346. |
Fish use while swimming |
| Answer» <p>fish use swim bladder for swimming</p> <p>Fins is the right answer </p> <p>fins is the right answer </p> <p>Fish swimby flexing their bodies and tail back and forth.Fishstretch or expand their muscles on onesideof their body, while relaxing the muscles on the otherside. This motion moves them forward through the water.Fishuse their back fin, called the caudal fin, tohelppush them through the water.</p> <p>fin is the answer of the following</p> <p>fish use swim with help of bladder for swimming</p> <p>Fish swim byflexing their bodies and tail back and forth.Fishstretch or expand their muscles on one side of their body,whilerelaxing the muscles on the other side. This motion moves them forward through the water.Fish usetheir back fin, called the caudal fin, to help push them through the water.</p> | |
| 347. |
1. What does Satyamev Jayate mean? |
| Answer» <p>Satyamev Jayateis an ancient Sanskrit saying thatmeans“truth alone triumphs.” It is India's national motto and appears on the national symbol. Since it is so closely associated with government iconography, its mention in a conversation is likely to be steeped in irony, rather than optimism or belief.Please hit the like button if this helped you</p> | |
| 348. |
LAPIUTUU4. Describe a simple experiment to show that a freely suspended magnet always aligns itselfin a particular direction. A 9 |
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| 349. |
A concave lens of focal length 15 cm forms an image 10 cm from the lens. Hois the object placed from the lens? Draw the ray diagram.11.ow |
| Answer» <p>thanks</p> | |
| 350. |
From a rifle of mass 4 kg, a bullet of mass 50 g is fired with an initial velocity of 35 m/s. Calculate the initial recoil velocity of the rifle. |
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