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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 39351. |
What is the basic Cause of magnetic phenomena ? |
| Answer» I dont know | |
| 39352. |
What is cell? Difference b/w cell and tissue |
| Answer» Fundamental unit of life is cell.group of cells is called tissue | |
| 39353. |
What is heterotropic nutrition |
| Answer» In hetrotropic nutrition, an organism cannot make its own food and obtain the energy from organic molecules already produced by autotrophs. Ex.human | |
| 39354. |
Define autotropic nutrition along with diagram |
| Answer» Autotrophic nutrition:\xa0The mode of nutrition in which an organism prepares its own food is called autotrophic nutrition. Mostly green plants have the ability to manufacture their own organic food due to the presence of chlorophyll. They take up CO2\xa0and H2O and manufacture carbohydrates in the presence of sunlight process called as photosynthesis. Such organisms are called autotrophs and their mode of nutrition is called autotrophic. | |
| 39355. |
Definition of hydrogen |
| Answer» A colourless,odourless highly inflammable gas | |
| 39356. |
What are the efforts of deforestation |
| Answer» Loss of natural habitat, ecological imbalance, depletion of water table | |
| 39357. |
Where is the magnetic force is larger |
| Answer» Near the poles | |
| 39358. |
Explain the chromosal basis of *** determination in human beings???? |
| Answer» Male has XY chromosome and female has XX chromosome. Sperm determines the *** of the zygote , it contains half X and half Y chromosome. Female has both X chromosomes. When fertilisation occurs between them there are fifty percent chances that it is boy or girl.If ovum of the female receives X chromosome from sperm then then zygote will form of the girl, if it receives Y chromosome, then zygote will form of the boy | |
| 39359. |
Diagram of Receptacle of a hibiscus |
| Answer» | |
| 39360. |
What is tropism ? |
| Answer» The directional movt. of Plant part towards any stimulus which is a growth movt is called tropism | |
| 39361. |
What is the direction of magnetic field lines inside a bar magnet and outside of it? |
| Answer» Inside it is from South to North and outside it is from North to South Pole | |
| 39362. |
What is dominante |
| Answer» | |
| 39363. |
What is corpus letum? |
| Answer» After ovulation, the remnants of Graafian follicle\xa0form corpus luteum. It secretes a large amount\xa0of progesterone hormone. Progesterone is\xa0essential for the maintenance of endothelium, which\xa0is essential for the implantation of the fertilised ovum and other events of pregnancy. In the absence of fertilisation, corpus luteum degenerates. | |
| 39364. |
What is meant by tropism |
|
Answer» Directional movement The direction of stimulus determines the direction of response is called tropism |
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| 39365. |
What are the 2 constituent of baking soda |
| Answer» Sodium and hydrogen carbonate | |
| 39366. |
When science sample papers of new pattern is come in myCBSEguide?? |
| Answer» You can check sample papers here :\xa0https://mycbseguide.com/cbse-sample-papers.html | |
| 39367. |
What is velocity? |
| Answer» | |
| 39368. |
explain three factor that mineral extraction |
| Answer» \tThe minerals content of the ore must be in sufficient concentration.\tThe type of formation or structure in which they are found determines the relative cases with which mineral ores may be mined.\tThe mineral should be close to the market so that the transportation cost is low. | |
| 39369. |
When metal react with water? What they form? |
| Answer» Metal hydroxide | |
| 39370. |
What do you mean by heart |
|
Answer» Heat is a pumping organ which purify the blood it is made of cardiac muscle .it have 4, chamber and its located in above the abdomen cavity between the two lungs Heart is a hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation. In vertebrates there may be up to four chambers (as in humans), with two atria and two ventricles. |
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| 39371. |
Function of each in solar cookerBlack surfaceMirrorGlass sheet |
|
Answer» Mirror glass syrface becausr it has a property not to escape heat so that food could cooked insite solar cooker Blacj color because it absorbs heat. |
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| 39372. |
What is dc |
| Answer» Direct current | |
| 39373. |
What is the structure of diamond? |
| Answer» Hexagonal | |
| 39374. |
Explain the properties of modern periodic table? |
| Answer» 1- isotopes shouldn\'t be put different. 2-elements are arranged in increasing atomic number | |
| 39375. |
Chemical reaction Kya Hota Hai |
| Answer» Chemical reaction is the reaction between two or more than two species that give rise to new compounds as product. | |
| 39376. |
What is layering |
| Answer» https://chat.whatsapp.com/I1aKysOq74L6jH7N6ip0zE | |
| 39377. |
What is the relation between 3-pentanone and u-hexatone? |
| Answer» | |
| 39378. |
Chapterwise marks distribution of science |
| Answer» U can it on this site easily? | |
| 39379. |
Atomic number of A,B,C,D are 19,13,24,18 respectively..... Which is the most reducing agent? |
| Answer» It\'s 19 as because Potassium is the one with atomic no. 19 and is most reactive so gets reduced fastest ........ | |
| 39380. |
Parts of fallopian tubes |
| Answer» | |
| 39381. |
What is esterification reaction and saponification reaction? |
| Answer» | |
| 39382. |
Sky is blue in colour why?????? |
| Answer» A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight. | |
| 39383. |
Explain the formation of rainbow |
|
Answer» formation of ? can be explained by the phenomena of dispersion.Just after the raifall there are many droplets of rain suspended in the atmosphere. These tiny droplets act as prism ant disperse white lught of sun to seven constituents colours.As there are large number of water droplets there is a continuous appearance of spectrum VIBGYOR rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. ... Rainbows caused by sunlight always appear in the section of sky directly opposite the sun. |
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| 39384. |
What is the formula of hard water |
| Answer» D2O | |
| 39385. |
What is fleming\' s left-hand rule? |
| Answer» Fleming’s left hand rule states that stretch the forefinger, the central finger and the thumb of your left hand mutually perpendicular to each other. If the forefinger shows the direction of the magnetic field and central finger that of the current, then the thumb will point towards the direction of motion of the conductor. | |
| 39386. |
state S.I. unit of resistivity? |
|
Answer» Ohm Ya baise isme koi badi baat nahi thee It\'s ohm metre It is ohm |
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| 39387. |
Distinguish between ethane and ethene |
| Answer» Bromine water test can be used to test unsaturated hydrocarbons like ethene.\xa0Ethene (an unsaturated hydrocarbon) will\xa0decolorize\xa0the brown colour of bromine water while ethane (a saturated hydrocarbon)\xa0will not. Bromine water will remain brown in the presence of ethane.{tex}C_2H_2\\,+\\,Br_2(Brown)\\,\\to\\,C_2H_2Br_2 (colourless){/tex} | |
| 39388. |
Why the ray becomr parallel to the pri ncipal axis when passes throughout focus |
| Answer» Yes | |
| 39389. |
How a metal is galvanized? |
|
Answer» Prevent from corrosion By appliance a preventive zinc coating to steel and iron\' to prevent rusting |
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| 39390. |
questions related to nomenclature |
| Answer» | |
| 39391. |
When sample paper of sciece for 2018 examination will be available for class 10 |
| Answer» Pata nahi | |
| 39392. |
13.4÷9 |
| Answer» 1.4888 | |
| 39393. |
Snell law |
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Answer» Second law of refraction is known as snell law Sin i/sin r =constant Angle of incidence equal to angle of reflection Sini= sinr |
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| 39394. |
What are conductor ,insulator And semi conductors ,give two example for each |
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Answer» Conductors-silver,copperInsulators-wood, plasticSemiconductors-silicon germanium conductors are those from which electrcity can flow and insulators are vice versa of conductorsSemi conductor shows the property of both conductors and insulators |
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| 39395. |
Which is second in the alkyne group?? |
| Answer» Propyne | |
| 39396. |
Explain the working of AC MOTOR ? |
| Answer» | |
| 39397. |
what is the other name of concave mirror |
| Answer» converging mirror | |
| 39398. |
Why plant required photosynthesis |
| Answer» Plant make their own food by photosynthesis | |
| 39399. |
Propertise of carbon |
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Answer» Catenation is also an important property of carbon Tetravelent Covelent etc |
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| 39400. |
Why different charges attract each other and same charges repel each other |
| Answer» Bcoz of electrostatic Force | |