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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.
| 39901. |
What\'s a difference between renewable and non renewable resource |
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Answer» Renewable=agin+new+ablei;e that object who able to renew it self The resource which renewed or replenished after use are called renewable resourcesThe resource which takes millions of years in their formation and are exhausted after use are called nonrenewable resources Renewable resources are those resorces which can be used again and again.for example-solar energy wind energy etc.Non-renewable resources are those resources which can not be used again and again.for example-fossil fuels etc |
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| 39902. |
What is meant by fossils? |
| Answer» Dead remains that gets deposited in the soil for over millions of years. These get decomposed and due to chemical changes, it forms substances which it can be used as a fuel. This is what we call Fossils. | |
| 39903. |
What will happen when the position of electron and proton in an atom will be interchanged? |
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| 39904. |
How do we decide which trait is recessive and which trait is dominant? |
| Answer» A male and female has its own character if their offspring(Baby) ahow the character of male(father)then father gene is dominant and mother gene is recessive.Mean to say if Father is tall and mother is drawf.Then if son also tall ; then it is due to dominanat gene | |
| 39905. |
Differentiate between nuclear fission and nuclear fusion |
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| 39906. |
Why does sun appear reddish early in the morning? |
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Answer» Sunlight is composed of seven colours,one of them is red whose wave length is about 700 nano metre which is more.than other six ,its speed is more than oters due to this reason.we know that whose speed is more travels faster so that sun light reach to thr earth fastest and hence sun appears reddish early in the morning In the early morning sun appears to be red because in the there was an advanced sun rise through which only the red colour appears and gets refracted from one layer of atmosphere to another that\'s why the sky is red and one more thing is there that we have studied that 7 colours VIBGYOR this only is applied here from back side only the red colour gets refracted Becoz at this tym sun is near the horizon and near horizon blue colour scattered away and sun has to cover longer distance and has to pass through thicker layer of atmosphere to reach observer eye so light that reach our eyes is of longer wavelength of red in colour |
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| 39907. |
Explain in detail about BLACK HOLE??????? |
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Answer» 1st give your image 1st give your photo A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. |
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| 39908. |
How do mendel\'s experiment show that traits may be dominant or recessive ??? |
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Answer» The trait which occurs in max . No of times in gen is called a dominant trait and the one which remains unexpressed is called recessive trait. According to law of segregation and law of dominance |
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| 39909. |
Why it is necessary to having variation in living organisms? |
| Answer» For survival in the changing environment | |
| 39910. |
Property of periodic table group wise |
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| 39911. |
What do you mean by litmus paper |
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| 39912. |
How leishmania divide |
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Answer» Binary fission By the process of budding Longitudinally |
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| 39913. |
What is Atmospheric refraction |
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Answer» The refraction of light caused by the atmosphere of earth is called atmospheric refraction The refraction which is caused by atmosphere is called atmospheric refraction |
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| 39914. |
Formation of different types of images by a concave lens |
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| 39915. |
State 10% law . Explain with an example how energy flows through different trophic levels |
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Answer» Above ans is of waste 10%law mean 100 MA sa energy 90%apna pas rakhna or utilities Karna and 10% aga pass kar Dana |
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| 39916. |
Write two comments about analogy in animals |
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| 39917. |
Why acetic acid is also called as glacial Acetic acid? |
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| 39918. |
What do you mean by combustion |
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| 39919. |
Why reproduction is needed |
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Answer» To maintain the ecosystem To preserve spicesIt is important for evolution of earth To continue the evidence of life |
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| 39920. |
List the components of reflex arc in correct sequence |
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| 39921. |
In group how atomic size vary |
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| 39922. |
Why is the sky appears blue |
| Answer» Due to the scattering of particles | |
| 39923. |
Atomic no of next halogen element if discovered in future. And why? |
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| 39924. |
What is agenda 21? |
| Answer» It is an agenda in which every country has to apply it\'s own agenda 21. | |
| 39925. |
What is Micro vegetation? Mention it\'s advantages. |
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| 39926. |
Derive mirror formula??? |
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| 39927. |
Why there is advanced sunrise and delayed sunset |
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| 39928. |
Why planets cannot twinkle????? |
| Answer» Planet is bigger than star and also it is close than a star.So atmospheric refraction doesn\'t occur . | |
| 39929. |
Food chain |
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| 39930. |
Define - micelle |
| Answer» the hydrophobic tails aggregate in water to form micelle | |
| 39931. |
What is sodium bicarbonate ? |
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Answer» NaHCO3 Baking soda |
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| 39932. |
what is OHMs law? |
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Answer» The current through a metallic element is proportional to the potential difference applied between its ends,provided the temperature remains constant. At a constant temperature electric current is directly proportional to the potential different According to Ohm\'s law of the potential difference V across the ends of a given metallic wire in an electric circuit is directly proportional to the current flowing through it provided its temperature remains the same this is called the Ohm\'s law |
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| 39933. |
What is an commercial electric motor? |
| Answer» \xa0An electric motor is an electrical machine that converts electrical energy into mechanical energy. The reverse of this is the conversion of mechanical energy into electrical energy and is done by an electric generator, which has much in common with a motor.\xa0Most electric motors operate through the interaction between an electric motor\'s magnetic field and winding currents to generate force. In certain applications, such as in regenerative braking with traction motors in the transportation industry, electric motors can also be used in reverse as generators to convert mechanical energy into electric power.\xa0Found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, and disk drives, electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as from the power grid, inverters or generators. Small motors may be found in electric watches. General-purpose motors with highly standardized dimensions and characteristics provide convenient mechanical power for industrial use. The largest of electric motors are used for ship propulsion, pipeline compression and pumped-storage applications with ratings reaching 100 megawatts. Electric motors may be classified by electric power source type, internal construction, application, type of motion output, and so on.\xa0Electric motors are used to produce linear or rotary force (torque), and should be distinguished from devices such as magnetic solenoids and loudspeakers that convert electricity into motion but do not generate usable mechanical powers, which are respectively referred to as actuators and transducers. | |
| 39934. |
What is dipole movement |
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| 39935. |
List two practical of biogas in rural areas |
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| 39936. |
Well label diagram of a human eye |
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| 39937. |
why do magnetic field line do no intersect each other? |
| Answer» The magnetic field lines never interest each other because if they interest then at the point of intersection,there would be two directions for a same magnetic field ,which is not possible. | |
| 39938. |
Why ova and begins are mixed |
| Answer» Because they give zygot | |
| 39939. |
What is solor constant? |
| Answer» Amount of solar energy coming to the periphery of earth.per sq m and per secnd | |
| 39940. |
Who is father of genetic |
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Answer» Gregor Johann mendel Gregor johann mendel |
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| 39941. |
What is refrangibility? |
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| 39942. |
Carbon is a non metal but act as reducing agent in smelting process Why |
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| 39943. |
Write 17and 18 group names |
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| 39944. |
Difference between nuclear fission and nuclear fusion...????? |
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Answer» Nuclear fission means when heavy atom like uranium split into two nucleus (two parts)then it called nuclear fission . Nuclear fusion mean when two lighter atom combined together to make heavy atom then is called nuclear fusion Nuclear fission occurs when a heavy atom splits into Lighter atoms and fusion occurs when light atoms combine to form heavy one. Nuclear fission occurs when a heavy atom splits into lighters any fusion occurs when light ( not heavy) combine to form heavy one. |
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| 39945. |
Carbon is acting as reducing agent in smelting process but carbon is a reducing agent . How |
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| 39946. |
nuclear chain reaction |
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| 39947. |
I feel chemistry a taugh one can any one help to solve this problem |
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| 39948. |
How do we find valencies of compounds |
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| 39949. |
What is reservibility of light |
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| 39950. |
Plz tell me how u write science lab manual.... is it necessary to write theory..plz tell..class 10 |
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