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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.
| 63901. |
Why current is a scaler quantity |
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Answer» @Harsh Naik I\'m a Kvian!!!!?Means I read in kendriya vidyalaya!! In which school do u study sneha mishra..... ✔Electric current should be considered a vector as it has both magnitude and direction. But in addition, vectors obey the law of parrellogram of vectors, which the electric current does not obey. For this reason, current is a scalar quantity and not a vector.✔Hope this will help u my frnd!!!?? Magnitude and direction, it does not obey the law of vector addition |
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| 63902. |
How we can purify the copper from ore |
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Answer» We should do electrolysis to get pure copper from the copper ore by calcination method By calcination |
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| 63903. |
Dies brain controls us or we controle brain? |
| Answer» Brain controls our involuntary actions like heartbeat, salivation, blood pressure etc.In case of voluntary actions, stimulus around us stimulate our brain and we work according to its signals or previously stored information. | |
| 63904. |
Primary sexual characters in boys |
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Answer» Hairs grow on sexual parts size of parts becomes large Increasing of breastSmall hairs on sexy legsHair growth on ***** |
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| 63905. |
What is autotrophic nutrition? |
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Answer» Autotrophic nutrition\xa0means that simple inorganic substances are taken in and used to synthesise organic molecules. Energy is needed to achieve this. In photo-autotrophic nutrition\xa0light is the energy source. In most instances the light source is solar energy, the process being photosynthesis. Which prepare their own food with the help of sunlight,water,carbondioxide and chlorophyll The green plant prepare their own food by using sunlight,water,carbondioxide with the help of chlorophyll. Autotrophs take in substances from the out side and convert them into stored form of energy.carbondioxide and water are converted into carbohydrates in the presence of sunlight and chlorophyll. Carbohydrates provide energy to the plant. Which make their own food |
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| 63906. |
What is the syllabus of SA 1 examination 2018-19?? |
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Answer» 1/2 chapter of whole book. chapter-1,2,3,6,7,12,13,14,15 of science |
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| 63907. |
When from will come of compartment |
| Answer» Are you fail? | |
| 63908. |
Why does a light ray gets dispersed in a prism and not in a glass slab? |
| Answer» It is becauseglass slab act like two prism in which one is put from side of vertex and from the side of base which make the dispersed light again white light | |
| 63909. |
Hy guys?? |
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Answer» Hii Hii Hlw Hii Hi |
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| 63910. |
Which mirror use in rear view mirror of a vehicle give reason |
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Answer» Convex mirror Convex mirror...because it forms smaller images of the objects and has a wider field of view |
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| 63911. |
what is solar coker |
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Answer» A solar cooker is a device which uses the energy of direct sunlight to heat, cook or pasteurise drink and other food materials. Many solar cookers currently in use are relatively inexpensive, low-tech devices, although some are as powerful or as expensive as traditional stoves,[1] and advanced, large-scale solar cookers can cook for hundreds of people.[2] Because they use no fuel and cost nothing to operate, many nonprofit organizations are promoting their use worldwide in order to help reduce fuel costs (especially where monetary reciprocity is low) and air pollution, and to slow down the deforestation and desertification caused by gathering firewood for cooking. Cooker which is made up of container vessel chroblast metal is solar cooker which is used to cook the food with the sun\'s help. The coker made with in sun |
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| 63912. |
Why hydrogen which is a non metal is placed on activity series? |
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Answer» Because hydrogen not shows the physical and chemical properties of metals. Because of its electroposivity which is generally seen in metals |
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| 63913. |
How do charge flow inside a wire |
| Answer» By changing the terminals of battery | |
| 63914. |
Draw the covalent bond structure of CF2Cl2 |
| Answer» | |
| 63915. |
Is there is need of \'ratta\' in science |
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Answer» See you just have to pay concentration and do practice and practice then you able to score well in science. And if you not able to this also then you do ratta only then no option is left Not at all Science is all about practice and understanding Actually no U just need to understand the way it is Noo |
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| 63916. |
What is resistor ??? |
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Answer» It is a device used to check the resistance and change the value of current It is a device used to oppose the flow of charge or current. |
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| 63917. |
What is resistance ?? |
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Answer» It is the property of the conductor to oppose the flow of charges through it It is a measure of obstructions to the flow of current offered by a resistor |
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| 63918. |
What do you mean by magnification?? |
| Answer» Magnification\xa0is the process of enlarging something only in appearance, not in physical size. This enlargement is quantified by a calculated number also called "magnification". When this number is less than one it refers to a reduction in size, sometimes called "minification" or "de-magnification". | |
| 63919. |
What is electric motor in brief?? |
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Answer» Electric motor converts electrical energy into mechanical energy Electric motor is a type of machine which works on electricity and makes works easy. |
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| 63920. |
Disadvantage of hydroelectricity |
| Answer» hydro electricity is produced from making dams which are bad for people who migrate from that place the land under the damn will infertile and exhaust flora and fauna from that place | |
| 63921. |
Why does like pole of a magnet repel each other and unlike pole attract each other |
| Answer» Because like Charges Repel each other andunlike Charges Attract each other | |
| 63922. |
What is myopic sightdness ?and its reason |
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Answer» Near sightdness means a person can clearly see the near object but can\'t see clearly distance object.needing to sit near the front of the class at school because they find it difficult to read the whiteboardsitting close to the TVcomplaining of\xa0headaches\xa0or tired eyesregularly rubbing their eyes etc are its causes... Near sightedness... Reason- incease curvature of lens and elongation of eye ball Fear singhtness and reason is eye boll are thin and same reasons |
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| 63923. |
Fore brain controls of where ? |
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Answer» Ok It is greatest part of brain canist of 3reigons olfactory labe ,cerebral hemisphere and diencephalon |
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| 63924. |
Is mirror formula valid for all types of mirrors |
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Answer» Yes Yes |
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| 63925. |
Why is cold milk helps a person in neutralising acidity in the stomach? |
| Answer» Obviously we can say that it\'s a base bcoz as same the situation in stomach when acid reacts with base....salt is formed i.e.neutralisation rxn taking place in short neither acidic nor basic....... | |
| 63926. |
Why Einstein\'s Mind Kept in Laboratory After his Death??????????? |
| Answer» | |
| 63927. |
How does the resistance of a wire depend on its length? |
| Answer» R=pA/l according to formula R is inverse proportional to l | |
| 63928. |
What is sentific name of human beings |
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Answer» Homo sapiens Homo sapiens |
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| 63929. |
What is induced |
| Answer» Induced means badnaaa | |
| 63930. |
What is nucleas |
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Answer» Nucleus is the structural and functional unit of life nucleus is the main part of the cell Nucleus is the cetral part of the cell Nucleas is the center dence part of the cell , which have many important substances that is important for the cell. |
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| 63931. |
Name the circulatory pathway from heart to lungs.why it is designed? |
| Answer» Every other cell, tissue, and organ in the body is impacted to a great extent by the circulatory system of the body. This system is the most complex system, with the three main components of blood, blood vessels, and heart. The blood travels through the entire body through the arteries and veins. This is how circulation occurs in the body.The pattern through which circulation happens is called the Circulatory pathway. This pathway can be classified into two types – The open system of circulation and the closed system of circulation. | |
| 63932. |
An electric bulb is connected to 220v genorator.That is0.50A .what is the power of genorator? |
| Answer» P=VI ; 220×0.5= 1100W | |
| 63933. |
Define electric power? |
| Answer» The rate of doing work is called power | |
| 63934. |
Give an example of metals and non metals |
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Answer» metals : iron,zinc,copper,aluminiumNon metals :oxygen, hydrogen METALS :-Iron,copper,aluminium, magnesium, sodium, lead,zinc.....NON-METALS: -Carbon, sulpher,iodine, oxygen, hydrogen etc..,. |
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| 63935. |
explain trypsin and pepsin and write function also |
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Answer» Function of pepsin:-pepsin digest protein and change into peptones and it is an enzyme Function of trysin :- it is an enzyme which digest protein and peptones into ammino acid |
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| 63936. |
How many type of brain in human beings... |
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Answer» Humans have 3 types of brain.1. Forebrain 2. Mid brain and 3.Hindbrain Three types for brain midbrain hind brain Forebrain,middlebrain and hindbrain 3types |
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| 63937. |
Prove that the direction of induced emf is accordance with law of conservation of energy? |
| Answer» | |
| 63938. |
Why we pour distilled water in our invertor battery as we know it doesnot carry electricity |
| Answer» Because the distilled water is pure | |
| 63939. |
Name three cemical indicators. |
| Answer» litmus paper, methyl orange, phanolphthalene | |
| 63940. |
Account rancidity and corrosion |
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Answer» Corrosion means an iron is rust due to oxygen impacts on iron... Rancidity means the oil or unpleasant smell from food... |
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| 63941. |
Why is diffusion insufficient for exchange of gases in higher organism? |
| Answer» Because it\'s very slow process so it can not meet the Requirement multi cellular like us if would not be able to supply oxygen each organ each cell rapidly. | |
| 63942. |
Ch 6 most question? |
| Answer» | |
| 63943. |
Qutarly exam ch 1 2 6 14 |
| Answer» | |
| 63944. |
Why earth wire is not mentioned as positive or negavite sign as live wire and nuteral wire |
| Answer» Because earth do not have positive or negitive charge | |
| 63945. |
Why the unsaturated compounds gives sooty flame |
| Answer» The percentage of carbon in unsaturated compounds is more and it requires more oxygen to get completely oxidised. Hence there is insufficient supply of oxygen for combustion of unsaturated hydrocarbons. So,due to incomplete oxidation they burn with a sooty flame. | |
| 63946. |
Important question for periodic test 2 |
| Answer» | |
| 63947. |
Important questions in Acids,bases ,and salts |
| Answer» Ph scale | |
| 63948. |
Define Stomatal open amd closed porous ? |
| Answer» Open stomatal pore they have guard cells , stomatal pore , chloroplast | |
| 63949. |
Why small intestine is known large intestine? |
| Answer» Because small intestine is 7 metre (23 feet ) long . | |
| 63950. |
In how many days the sperm reaches to the egg or ovum after mating |
| Answer» The sperm reaches to egg with in 30 minutes and remain for 3-5 days. | |