Saved Bookmarks
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.
| 44651. |
A 4ohm resistance wire is doubled on it. Calculate the new resistance of the wire. |
|
Answer» Full numerical Full numerical cahiye to btana New resistance is 1ohm |
|
| 44652. |
What happen when an acid reacts with base |
|
Answer» Neutralisation reaction hota hai, with salt and water as product ....... Neutrlistation reaction Salt and water form hota hain |
|
| 44653. |
What is difference b/w ac and dc generator |
|
Answer» Ac generator means alternating current generator it generates the current which changes its direction ofter equal intervals of time Dc generator means direct current generator it generates the current which does not change its direction with time Slip ring is used in ac generator whereas split ring is use in dc generator DC generator .. convent mechanical energy into electrical energy(battery×)..... |
|
| 44654. |
(H+)(aq) + (OH-)(aq) --------gives H2O which type of reaction is this please give answer |
|
Answer» May I Right please response It is combination when 2H2+O2-------GIVE 2H2O Let see how acid contain H+ion and base contain OH- and they combine to form H2O It is neutralization reaction Combination reaction Combination reaction as two reactants are combine to form a single product. Combination reaction |
|
| 44655. |
How Mendeleev show that trait are inherited in maturr |
|
Answer» Yaar Mendeleev nahi Mendel Arre Vo Mendel hoga na ki mendleev ?? |
|
| 44656. |
What is the maximum speed of any object present in the world |
|
Answer» Right answer is (3×10POWER8)2SQUIRE fromE=mc2 this is my best 186000 miles per second sayad 3 *10 -8 |
|
| 44657. |
how is ozone formed in the upper atmosphere of the earth ? |
|
Answer» This ans is insufficient. The uv rays is not only responsible ok UV rays of sun splits O2 into O & O. This O goes & joins with other O2 molecules in atmosphere forming O3 ie Ozone.O2_uv_➡️O+ OO2+O➡️O3 O2+O in presence of uv rays form o3 |
|
| 44658. |
Which is tough part in science?A] BiologyB] PhysicsC] Chemistry |
|
Answer» Physics is not easy Kuch bhi nahi everything is easy |
|
| 44659. |
Name the factor that is responsible for producing heat when current flow through it a conductor |
|
Answer» Flow of electron Resistance |
|
| 44660. |
What is refraction and its law of refraction ??????????? |
|
Answer» 2nd law is the ratio of sin of angle of incid3nce to sin of angle of refraction is constant for a given pair of media. Bending of light is refraction and laws 1 angle i=angle r. 2 sin i/sin r =constant 2 laws of refraction are there,. 1st is , the incident ray, the normal , and the refracted ray all lies in the same plane at the point of incidence. Refraction is change in direction of light when it goes from 1 medium to another. |
|
| 44661. |
Why hydrogen does not form bond with metals |
| Answer» Because metal form bond by lossing electron and H2 also loses electron so they donot form bond | |
| 44662. |
ch3cooh+naoh |
|
Answer» Sodium acetate will be formed Ch3coona+h2o |
|
| 44663. |
PH of sodium hydroxide solution is 10.6. on dilution of solution its pH will. |
| Answer» Reduce | |
| 44664. |
Why is paint applied on iron articles |
|
Answer» To prevent it from rusting To prevent them from rusting. |
|
| 44665. |
What function ciliary muscles do |
|
Answer» It changes the focal length of the eye lens to focus on different object at different distance\'s Ciliary muscles regulates the suspendory ligaments which holds the eye lens |
|
| 44667. |
Why acid does not react with non metal |
|
Answer» Thanks Non metals do not react with acid because non-metals accept electron from other so they cannot donate Hydrogen ion to the acid with which they are reacting so there is no reaction.But there are exceptions also like phosphorus,carbon etc. For example:-Carbon react with sulphuric acid producing CO2,SO2 and water. |
|
| 44668. |
Important digram for bord exams |
| Answer» Heart ka,nephron ka, female reproductive system | |
| 44669. |
What are consumers producers ?expain its types |
| Answer» | |
| 44670. |
Practical based questions on electrolysis of water |
| Answer» | |
| 44671. |
What is amalgm? |
|
Answer» An alloy of mercury........ An alloy in which one metal is mercury. |
|
| 44672. |
Thanks yogita,you solve my problem |
| Answer» | |
| 44673. |
What is the full form of otecp |
|
Answer» Ocean Thermal Energy conversion plant Ocean thermal energy conversion plant OTE--> ocean thermal energy, ...... OTEC--> ocean thermal energy conservation...... OTECP--->.....???? nhi pata |
|
| 44674. |
Difference between veins and ateries |
| Answer» Arteries: thick, elastic , carry blood to body parts, blood in arteries have high pressureVeins: carry blood from body parts to heart, have valves to prevent backflow of blood | |
| 44675. |
What is the longest artey in human being |
|
Answer» Aorta is the largest artery in human body being 45cm in length. It emerges from top of left ventricle of heart. During systemic circulation, aorta supplies the whole body with the blood that has been oxygenated by the heart. The very first branches of aorta are coronary arteries. Aaorta |
|
| 44676. |
What is acent of sap? |
| Answer» The ascent of sap in the xylem tissue of plants is the upward movement of water and minerals from the root to the crown. Xylem is a complex tissue consisting of living and non-living cells. | |
| 44677. |
Whay is principle of electric motor. |
|
Answer» Fleming\'s left hand rule Magnetic effect of electric current Flemings left hand rule |
|
| 44678. |
What are inherited traits |
|
Answer» The traits that are obtained from the parents to the offsprings are known as inherited traits . These are genetic variations which are transmitted to the next generation These traits are controlled by specific genes and are passed on from one generation to another. The traits which are present by birth...nd are passed frm one generation to other....nd cause change in DNA |
|
| 44679. |
What is the difference between ore and mineral? |
|
Answer» The basic difference between mineral and ore is that , every ore is a mineral but every mineral is not ore . minerals are occured in the crust naturally and ore contains heavy presence of metals . minera= the element of compound which occure naturaly in the earth crust is knows as a minerals..ORE=mineral that contain high present of metals are knows as ore....Every ore is mineral but every mineral is not an ore...?☺☺☺? Minerals are naturally occurring inorganic solids with a crystalline structure and a definite range of chemical formula. Ores are concentration of minerals in rock that are high enough to be economically extracted for use. Mineral~the sub which occurs naturally in earths crust called mineralsOre~the mineral from which metal can be extracted easilyor profitably |
|
| 44680. |
Non metals gain electrons. Give reason |
|
Answer» Non metal gain electron to complete their octate and become stable and to achieve noble gas confurgation Bcoz their valence electrons are more than 4....for eg 6..it is easier to gain 2electrons than to lose 6 electrons to fill their outermost shell. Hence they gain electrons Non metals gain electrons to form negative ions.. called anions |
|
| 44681. |
Metal loses electrons. Give reason |
|
Answer» Metals lose electrons to complete their octet....and form positive ions i.e cations Metal loses electrons very easily to complete their outermost shells. Metals have usually 1,2,3 electrons in their outermost shells so they donate the easily and achieve the noble gas configuration and become stable |
|
| 44682. |
Why is normal eye not able to see clearly the objects placed closer than 25 cm? |
|
Answer» But this is not a proper answer.... Hope it helps yu? Maximum accomodation of normal eye is at a distance of 25 cm frm eye...focal leñgth of eye lens cannot b decreased below this....so normal eye cannot see objects placed closer than 25 cm... |
|
| 44683. |
What is double fertilisation?? |
|
Answer» Okk bro Double circlation is related with blood circlation and double fertilisation as per explained by khushi Bhai double circulation aur double fertilisation alag hai Its not double fertilization it double circulation In plants-In angiosperm doble fertilization occurs. There will be 2 male germ cells. One male germ cell fusses with female germ cell to form zygote. Another male germ cell fuses with endosperm to form secondary nucleus. |
|
| 44684. |
What type of questions come from source of energy |
|
Answer» Thanks for ideaa Nuclear fission and nuclear fusion is very important topics Biomass,conventional or non conventional sources of energy and fossil fuels k bare me puch sakte hai |
|
| 44685. |
Eka-silicon is now known as: |
|
Answer» Germanium Germanium |
|
| 44686. |
Heridity and evolution wale lesson ko kaise padhe so boring lesson |
|
Answer» Is lesson se 1 marks ka hi question aaega mene marking dekhi chapters ki gauri madam.......ess lesone ko dhayn se padha kyu ki isse 3 marks ka question cpmpelsery hii aye gaaaaur rahi batt ise pedheki yoo to app kebal ncert padh ke hi jayega to woo kafi hai |
|
| 44687. |
domiant pea |
| Answer» | |
| 44688. |
“Natural selection and speciation leads to evolution.” Justify this statement. |
| Answer» Yes because a species is a group of population which reproductly isolated from the rest of the poulation. The origin of species from pre-existing one leads to speciation of species. If nature allow that species to survive then they can reproduce to give rise to new characters which is known as variation. | |
| 44689. |
Why do stars twinkle?? ... .. |
|
Answer» Hope it helps you As the light from the star enters the earth\'s atmosphere it undergoes refraction due to varying optical densities.As the light refracts by different amount therefore starlight reaching our eyes increase and decreases continuously.. Hence star appears to be twinkle at night. Ohk Moreover, the different layers of atmosphere are mobile and the temperature and the density of layers of atmosphere changes continuously. Hence, the apparent position of the star changes continuously. The change in the apparent position of the star continuously leads to twinkling of a star. stars twinkle because of turbulence in the atmosphere of the earths.As the atmosphere churns the light from the staris refracted indifferent direction.☺☺☺ Stars twinkle due to atmospheric refraction. |
|
| 44690. |
Which is better for biology : byjus or utube... |
|
Answer» My opinion is learn from youtube The app you are using now Yotube also Only book Byjus |
|
| 44691. |
What is 1?dioptre |
|
Answer» Power of a lens is 1 dioptre if its focal length is 1 metre. 1 dioptre is the SI unit of power of Lens whose focal length is 1m . It is denoted by the letter D. 1 dioptre is the S I unit of power of lens S.I unit of lens. |
|
| 44692. |
From which section i should start my science paper |
|
Answer» Science me section c tk hi..hota hai..sayad Science me..section d..bhai??? Section D is better becoz this section conta in high marks.. . Any section you should start ....only maths exam have time problem....I think so??? Then section E,C,B,A Section d |
|
| 44693. |
What should be my next plan to write science paper because i am not able to manage time |
| Answer» | |
| 44694. |
Ch 1 chemistry |
| Answer» Yaar mera bhi same problem h | |
| 44695. |
What is Coliform bacteria?? |
| Answer» Coliform is a bacteria present in the intestine of human, which when found in water it gets contaminated. | |
| 44696. |
Name a device which uses light for transmission? |
|
Answer» Optical communication is the communication device which uses light for its working Li-Fi |
|
| 44697. |
explain the formation of ammonia molecule ? |
| Answer» Ammonia (NH3) is made up of one atom of nitrogen and three atoms of hydrogenAtomic number of N = 7Electronic configuration = 2, 5Atomic number of H = 1Electronic configuration = 1So hydrogen needs 1 more electron to complete its duplet and nitrogen needs three more electrons to complete its octetHence three hydrogen atoms will combine with nitrogen to form ammonia | |
| 44698. |
How does atmospheric refraction affect sunrise and sunset? |
| Answer» nahi mil raha hai yrr | |
| 44699. |
We feel burning sensation in the stomach when we over eat give reason |
|
Answer» We know our stomach produce hydrochloric acid. It help in digetion of food without harming the stomach. During indigestion stomach produce lots of hydrochloric acid which cause pain and irritation As we eat more, then our stomache produce more hcl It\'s because of acidity when excess of acid is produced it leads to acidity........it can be cured by using an antacid ......like milk of magnesia..... |
|
| 44700. |
how does atmospheric refraction affect sunrise and sunset ......... |
|
Answer» Atmospheric refraction leads to the 2 min early sunrise and 2 min delayed sunset Due to its sun rays follows curved path ........i think so Sun appears red because of atmospheric refraction during sunset and sunrise☺️......that\'s how it affects sunrise and sunset....... |
|
