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InterviewSolution
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.
| 68851. |
State the law of reflection of light? |
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Answer» 1=》The angle of incidence is always equal to the angle of reflection 2=》The incident ray ,the reflected ray and the normal lie on the same plane. There are two laws of reflection :- ????? ??? :- The incident ray, the normal to the reflecting surface at the point of incidence and the reflected ray, all lie in the same plane. ?????? ??? :- The angle of incidence and angle of reflection are equal and lie on opposite sides of the normal. There are two laws of reflection1 The angle of incidence is equal to the angle of reflection.2 the incident Ray the reflected ray and the normal at the point of incidence all lie in the same plane They are two laws of reflectionFirst law - According to the law of reflection of light the angle of reflection is always equal to angle of incidence Second law - The incident ray , reflected ray ,and the normal (at the point of incidence) all lie on the same plane |
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| 68852. |
define the principal focus of concave mirror and principal axis of concave mirror |
| Answer» When a parallel rays strikes the concave mirror after reflection the ray passes through a point or meet at one point.This point is called principal focus of concave mirror | |
| 68853. |
Why is respiration considered as an exothermic reaction. Explain |
| Answer» Exothermic reactions release heat or energy.When you or we breath out,breath is warmer.This is happened for respiration reaction of our body.Carbolydrates present in food are broken down to form glucose.This glucose combines with oxygen in the cells of our body and provides energy.This reaction is known as respiration.hence,respiration is considered as an exothermic reaction. | |
| 68854. |
Who is the first sciencetist who done toilet on moon |
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Answer» Question koi puchta hai to usko Gali Nahi dete Bhai Buzz Aldrin your question is very mind blowing Pgal hai kya bc |
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| 68855. |
Why is the bag used for potato chips flushed with nitrogen gas ??????????? |
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Answer» The packet of the potato chips is filled with the nitrogen gas for preventing oxidation and hence to prevent rancidity. As nitrogen gas is inert in nature so it does not itself react with the food items but prevent rancidity. To prevent potato chips from being oxidised, nitrogen gas is used. To prevent rancidity In order to prevent the potato chips from becoming rancid. |
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| 68856. |
Survey and Research on the Global Impact of respiratory diseases. (In 200-300 words). |
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| 68857. |
What is the difference between Electromagnet and Permanent Magnet ? |
| Answer» In Electromagnet it for some time has power of attractive In Permanent magnet it for permanent it doesn\'t lose it attractionpower | |
| 68858. |
Exampla of autotrophic |
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Answer» Plants, lichens, and algae are examples of autotrophs capable of photosynthesis. Green plants Green plants ,which contains chrolophyll. Blue-green algae,Clamodonas,Synobacteria,Above are the names of bacteria which are autographs Plants |
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| 68859. |
The pathway taken by a molecule of CO2 from the atmosphere to the site of photosynthesis is |
| Answer» Anabolic pathway. | |
| 68860. |
What is electrolyte decomposition reaction? |
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Answer» A decomposition reaction which requires electricity to undergo a reaction Electrolytic decomposition result when an electric current is pass through the aqueous solution of a compound when electrical energy from a battery is passed through water the water dissociate into a diatomic molecules of hydrogen and oxygen The decomposition reaction which needs electrical energy The Decomposition reaction that takes place in the presence of electricity is called electrolytic Decomposition |
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| 68861. |
What is the movement of digested food molecules in blood called ? |
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Answer» Peristaltic movement Peristaltic movement While digestion , peristaltic movement takes place |
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| 68862. |
C7+H6+O12 +O2 = CO2 + H2O |
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| 68863. |
Which is the highest melting point metal? |
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Answer» Tungsten is the highest melting point near about 3840 celcius degree Tungsten |
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| 68864. |
Which tissue is an involuntary muscle with linear stripes ? |
| Answer» Skeletal Muscle | |
| 68865. |
What is chemical formula for sulphur dioxide |
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Answer» Don\'t get confuse..It\'s SO2 SO2 So2 So4 SO4 |
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| 68866. |
What is electric feild |
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Answer» Electric field is the area around which a particle can attract or repel another charged particle The space or region around in which a charge particles or object within a force can be exerted by the another particle or object. |
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| 68867. |
ch 1st electric current notes |
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| 68868. |
What is calciferol? |
| Answer» one of the D vitamins, a sterol which is formed when its isomer ergosterol is exposed to ultraviolet light, and which is routinely added to dairy products. | |
| 68869. |
What is the formula of Quick lime? |
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Answer» The formula of quick lime is Cao note Caco3 it is the formula of calcium carbonate . The formula of Quick lime isCaO CaO caco3 CaO(calcium oxide) |
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| 68870. |
What is dilution?? |
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Answer» Dilution is the process of adding acid to water Your answer is wrong What is the use of ph scale in human daily life?? the action of making a liquid more dilute. |
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| 68871. |
Define the principle focus of a concave mirror? |
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Answer» When light rays strick on a concave mirror after reflection rays meet at a point this point is known as principal focus of concave mirror (i) The principal focus of a concave mirror is a point on its principal axis to which all the light rays which are parallel will converge after reflection from the concave mirror. When an object is placed at infinite distance from the mirror, the rays of light coming from the object will be parallel to the principal axis as shown in the figure. After reflection from a concave mirror, the rays will converge to the focal point of the mirror which is denoted by point F in the image.(ii) The focal length of a concave mirror is the distance between the pole of the mirror denoted by point P in the image to the focal point of the mirror. Hence it is the distance between points P and F.NoteFor a concave mirror, whose radius of curvature lies in front of the concave mirror, the value is taken negative and so is the focal length of the mirror according to the convention of the Cartesian coordinate system. We must be careful to not mix the focal point and the centre of curvature of the mirror as the centre of curvature is approximately twice the focal length of the mirror. |
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| 68872. |
Amoeba shows followingg kind of nutrition |
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Answer» It\'s show a holozoic nutrition. Holozoic Holozoic Phygoscatosis |
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| 68873. |
Different between autotrophs and heterotrophs |
| Answer» \tAutotrophsHeterotrophsType of OrganismsUsually members of the plant kingdom and certain unicellular organisms like cyanobacteriaAll members of the animal kingdomMode of NutritionAutotrophs are producers which prepare their own food.Heterotrophs are the consumers who depend on other sources for their food.Classified intoThese can be classified as photoautotrophs and chemoautotrophs.These can be classified as photoheterotrophs and chemoheterotrophs.Presence of chloroplastsThe chloroplast helps in preparing food.They do not contain chloroplast, so cannot prepare food.Energy is obtained fromThey obtain energy from inorganic sources by converting light energy into chemical energy.They obtain energy directly or indirectly from other organisms.Energy StorageAutotrophs can store light energy and chemical energy.Heterotrophs cannot store energy.In Food ChainThey are placed at the primary level in the food chain.These are placed in the secondary or tertiary level in the food chain.LocomotionThey cannot move from their place.Can move from one place to another in search of food and shelter.ExamplesGreen plants, algae and a few photosynthetic bacteria are examples of autotrophs.Cows, buffaloes, tigers, horses, humans are examples of heterotrophs.\t | |
| 68874. |
explain the snails law of refraction |
| Answer» Snell\'s law is a formula used to describe the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air. | |
| 68875. |
pbs reacts with ozone and forms pbso4 as per the balanced equation |
| Answer» 3pbs +4o3_______ 3pbso4. | |
| 68876. |
Class 10 activity -11. 2 solution |
| Answer» Myopia is also known as near sightedness the image of a distance object is formed in front of the retina | |
| 68877. |
Acid, bases and salts defination in term of H+ and OH- ions |
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Answer» A base may be defined as substance which release one or more OH- ions in a aqueous solution. An acid may be defined as substance which release one more H+inos in a aqueous solution is known as acid. |
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| 68878. |
Group the following compounds acids, bases and salts.. intoMg(0), HNO3, KOH, H₂SO4, Na₂SO4, AgCl. |
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Answer» These all are the examples of base Base |
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| 68879. |
Magnasum+oxygen |
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Answer» Magnesium oxide 2mgo Magnesium oxide (MgO2) Magnesium oxide(MgO2) Magnesiumoxide MgO2 |
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| 68880. |
Full form of WBC |
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Answer» White blood cell White blood cell WBC - White Blood Cells White Blood cells or White Blood Corpsules White blood cells |
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| 68881. |
What is ac current |
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Answer» Current is defined as d continuous flow of charge. Alternating Current.It changes it\'s direction every half turn. |
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| 68882. |
Write one condition under which Ohm\'s law is not applied and explain it. |
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Answer» If temperature and pressure is not constant. The ohm\'s law is not applied because the resistance will be keeo on changing in temperature and pressure If temperature is not constant |
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| 68883. |
Give reason why nitric acid cannot be used to obtain hydrogen gas from metals |
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Answer» Nitric acid is strong oxidising agent . It oxidises the hydrogen formed by water. ... Actually the main thing is Nitric acid is strong oxidising agent . It oxidises the hydrogen formed by water. -As we know that nitric acid has another name that is aqua fortis which is a highly corrosive acid. The molecular formula of nitric acid consists of one hydrogen, one nitrogen and 3 oxygen molecules.-Also, nitric acid is also a strong oxidising agent because it can oxidise other molecules by giving an oxygen molecule and reduces itself.-Now, we know that hydrogen gas consists of two atoms of hydrogen which combine when metal and water react together.-Metals such as sodium, magnesium, manganese, etc can be used to react with a cheap compound that is water to liberate the hydrogen gas.-The balanced chemical reaction is:2Na + 2H2O → 2NaOH + 2H2-But if we use the dilute nitric acid then it will act as an oxidising agent and react with hydrogen gas to produce water molecules.-As we can see in the chemical reaction:2HNO3 + H2 → 2H2O + 2NO2Therefore, due to the oxidation of hydrogen gas by dilute nitric acid, nitric acid is not used forthe preparation of hydrogen gas. |
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| 68884. |
How the water from roots to leaf surface for transpirate |
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Answer» By transpiration Transpiration By the process of transportation |
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| 68885. |
Nbb |
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| 68886. |
What is the speed of different coloursA.redB.blueC.greenD.yellowE.voilet F.indigoG.orange |
| Answer» Speed of evey wavelength of light is equal to 3×10^8 but their wave length are different that is why refractive index of every medium is different for every wavelength and can be found as n= A+B/lembda2+ C/lembda⁴. | |
| 68887. |
What is Ionic Compounds? How they are form? |
| Answer» Ionic compounds are also known as electrovalent compounds. The chemical bond formed by the transfer of electrons from one atom to another is known as Ionic bond. These compounds contain ions. Through this article we will study about the ionic compounds, how they are formed with examples etc. | |
| 68888. |
Cup hui |
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| 68889. |
U=40,f=10,v=? In convex mirror and draw suitable diagram |
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| 68890. |
Which quantity is electicity |
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Answer» Electricity is a scalar quantity Because it doesn\'t follow the vector law Scalar Means kon se quantity hai scalar ya vector What did you mean |
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| 68891. |
the rate of respiration is higher than the rate of photosynthesis then the plant will be |
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| 68892. |
Kya continued ni ho skta h |
| Answer» Hmm | |
| 68893. |
Psychology of human project report |
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| 68894. |
Which hormone functions opposite to cytokinin ? |
| Answer» Absicics acid✊ | |
| 68895. |
When will live and interactive class will start ? |
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| 68896. |
What is light year ? |
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Answer» the distance that light travels in one year, Light years means distance travelled by a object by speed of light in 1 year. It is the distance that light can travel in one year. |
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| 68897. |
Define 1dioptre of power of a lens? |
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Answer» Whose focal length is 1m Answer:1 dioptre of power of a lens is described as the unit of measurement of the\xa0optical power of a lens\xa0or curved mirror equivalent to the reciprocal of focal length (f). Measurement of the focal length in a meter.The SI unit of power of lens is dioptre whose focal length is one meter, which is denoted by the letter\xa0D.1 dioptre (D) = P = 1/fWhere f = focal le 1 dioptre is power of lens whose focal length (f) is 1m |
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| 68898. |
given 4 resistors, how many different combinations can be made |
| Answer» Nine resistors can be made | |
| 68899. |
Ph value of a solution is zero.So, What is nature of solution??? |
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Answer» Highly acidic Very very very very strong acid Acidic and the acid will be strong acid Strong acid Acidic nature.. |
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| 68900. |
Chapter 3 questions answers |
| Answer» You get this from Google | |