InterviewSolution
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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.
| 5701. |
What do you mean by SARS ? Explain. |
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Answer» Thanks yogita SARS stands for Severe Acute Respiratory Syndrome is a serious form of pneumonia caused by SARS virus .This is an acute respiratory disorder which sometimes results in the death of the patient. This is a contagious disease which starts with high fever, cough,shortness of breath and later lead to diarrhea. In severe cases it leads to heart failure, liver failure etc. |
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| 5702. |
How do bacteria protect themselves ? |
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Answer» Bacteria are unicellular prokaryotic organisms capable of surviving in unusual habitats. Their cellular body is protected by a cell membrane as well as cell wall. The cell wall of bacteria is composed of peptidoglycan that is capable of withstanding different conditions. Some bacteria also form spores that can withstand unfavourable conditions. These spores germinate and give rise to new bacterial cells on return of favourable conditions. By making their cell wall |
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| 5703. |
Please exolain me mole concept??? |
| Answer» Mole is the measurement in chemistry. It is used to express the amount of a chemical substance.One mole\xa0is defined as the\xa0amount of substance\xa0of a system which contains as many entities like,\xa0atoms, molecules\xa0and\xa0ions\xa0as there are atoms in\xa012 grams of carbon - 12".Avogadro number:The number of the particles present in one mole of any substance = 6.022x1023. This is called avogadro’s number or Avogadro’s constant.No. Of particles in 1 mole:1 mole of hydrogen atoms represents 6.022 × 1023\xa0hydrogen atoms.1 mole of hydrogen molecules represents 6.022 × 1023\xa0hydrogen molecules.1 mole of water molecules represents 6.022 × 1023\xa0water molecules. | |
| 5704. |
What does the Aqueous solution???? |
| Answer» An aqueous solution is a solution in which the solvent is water. | |
| 5705. |
How to find whether the substance is mixture, element or compound??? |
| Answer» A compound is a pure substance composed of two or more different atoms chemically bonded to one another. A compound can be destroyed by chemical means. It might be broken down into simpler compounds, into its elements or a combination of the two.Decide whether a substance is chemically pure. If it is pure, the substance is either an element or a compound. If a substance can be separated into its elements, it is a compound. If a substance is not chemically pure, it is either a heterogeneous mixture or a homogeneous mixture. | |
| 5706. |
Which of the following is pure substance?Element CompoundMixture |
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Answer» Element is a pure susbstance Element Element and compounds Element and compound Element and compound |
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| 5707. |
Write the formula of \'beryllium nitrate\' |
| Answer» BeN2O6 | |
| 5708. |
How to get cbse guide help for two classes 9th as well as 11th |
| Answer» By going into setting | |
| 5709. |
Define centrifugal force |
| Answer» If an object moving in a circle and experiences an outward force, than this force is called as the centrifugal force. However, the force also depends on the mass of the object, the distance from the center of the circle and also the speed of rotation.If the object has more mass, the force of the movement and the speed of the object will be greater. If the distance is far from the center of the circle the force of the movement will be more. | |
| 5710. |
different between atom and ions two pointd |
| Answer» \tAtomIonSmallest unit of elementSingle particle or collection of particlesTakes part in chemical reactionCannot participate in chemical reactionNot independent in solutionIs independent in solutionAtoms form moleculeIons form electrovalent bondElectrons and protons are equalElectrons and protons are unequalUnstableStable\t | |
| 5711. |
Why do we can\'t get echo at all places |
| Answer» The echo is not heard any places because suppose you have in the room and speak any word but in the room you have not a single body.In the room many matter like walls, ceiling,and any more,so this matter is observe the sound. | |
| 5712. |
Difference heathly and disease free |
| Answer» Healthu means that the person is behaving well in physical, mental and cope with social well being without any difficulty. | |
| 5713. |
Why do you think mam ng anti vural medicine is harder than making antu bacterial medicine |
| Answer» | |
| 5714. |
Which newton low of motion is applied in flight of bird |
| Answer» Newton third law of motion | |
| 5715. |
How does the sound produced by a vibrating object in a medium reach your ear? |
| Answer» When an object vibrates, the particles in the surrounding medium vibrate. These particles send the vibrations to adjacent particles and energy continues to transmit until it reaches our ears.A wave is a disturbance moving through a medium when the particles of a medium set the adjacent particles into vibration.The particles do not move forward, but the disturbance does.When these vibrations reaches our ears, the ears allow us to convert pressure variations in the air with audible frequencies into electric signals that travel through the brain via the auditory nerves. | |
| 5716. |
Find the ratio mass of combining elements in MgCl2, H2SO4, Ca(OH)2 |
| Answer» Plzz give answer | |
| 5717. |
write valency of cations and anion from mangit and lakmir singh |
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| 5718. |
What is the difference between echo and reverberation? ( pls give 3 points) |
| Answer» \xa0\tEchoReverberationEcho is a single reflection of a sound wave off a surface.Reverberation is the sound or the pattern created by the superposition of such echoes.An echo can be heard only when the distance between the source of sound and the reflecting body is at least 17 m.A reverberation can occur when sound wave is reflected by a nearby wall also.An echo is usually clear and can be clearly distinguished.A reverb is not a clear replica of the original sound sample.Echo can be used to determine the distance of a reflecting object such as a large building or a mountain, if the ambient temperature is known.Reverberation cannot be utilized for distance measurement applications.\t\xa0 | |
| 5719. |
Calculate the image distance |
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| 5720. |
Practical physics |
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| 5721. |
A motorcylist |
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| 5722. |
How does the atmosphere act as a blanket? |
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Answer» As we know that atmosphere is bad conducture of heat and it maintain the average temp. of the earth by absorb the atmospheric temp. in day time and slows down the escape of heat or temp. into outer space in night timeI hope it is enough for you deepika? Because air is a bad conductor of heat.The atmosphere keeps the average temperature of the earth fairly steady during the day and even during the course of the whole year. The atmosphere prevents the sudden increase in temperature during the daylight hours. And during the bnight it slows down the escape of heat into outer space. |
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| 5723. |
What are the conditions necessary for the formation of an echo. |
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Answer» The conditions necessary ror the formation of an echo :-1) Distance is 17.2 m2) Time is 0.1 Distance. 17.2 m or more than itTime ..more than 0.1 sec |
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| 5724. |
difference between gymnosperm and angiosperm |
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Answer» Gymnosperms refers as (gymno-naked sperm-seed) tnks bt i got half ans \tAngiospermGymnospermSeed is produced by flowering plants and is enclosed within ovarySeed is produced by non-flowering plants and are unenclosed or naked.The lifecycle of these plants are seasonalThese plants are evergreenHas triploid tissueHas haploid tissueLeaves are flat in shapeLeaves are scalelike and needle-like in shapeHardwood typeSoftwood typeReproduction rely on animalsReproduction rely on windReproductive system present in flowers (unisexual or bisexual)Reproductive system present in cones and are unisexual\t |
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| 5725. |
Which property of flexibility in plasma membrane helps in endocytosis |
| Answer» \tThe flexibility of plasma membrane helps uni-cellular organisms like Amoeba to engulf food by a process called Endocytosis.\tAmoeba folds it’s plasma membrane and makes false feet known as Psedopodia which help it to trap food in a food vacuole and digest it. | |
| 5726. |
Why colloids appear to be homogeneous to us but actually they are found to be heterogeneous. |
| Answer» Why doesn\'t blood clots inside the body.but it clots out of the body after injury | |
| 5727. |
A mass of 10kg is dropped from a height of 50cm. Find its velocity and kinetic energy |
| Answer» Velocity = root 10 Kinetic energy = 50 | |
| 5728. |
What is the work done by a person walking on a levelled road with a lod in his head? |
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Answer» Work done = Force x displacementW = F.s = Fs\xa0cos\xa0θwhere θ is the angle between the direction of force and the direction of displacement of the object. If they are perpendicular to each other θ = 90°. We have cos 90° = 0.ThereforeW = F x s x 0 = 0 Work done = 0 |
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| 5729. |
Draw the diagram of turning fork and write name of power |
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| 5730. |
Which tissue is known as the power house of the cell ? |
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Answer» Answer is Mitochondria , but it\'s not a tissue. It is an organelle in the cell. Mitochondria is known as power house of the cell Mitochondria Mitochondria |
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| 5731. |
What is the momentum of an subject ofmass m moving with velocity |
| Answer» Momentum is a concept that explains how a moving object gains velocity during movement, and how this velocity is dependent on the object\'s mass\xa0Mass of the object = mVelocity = v\xa0Momentum = Mass × Velocity\xa0Momentum = mv | |
| 5732. |
Why does the odometre of an automobile measure |
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Answer» Odometer is a device used to measure the distance travelled by the automobile or the vechile Odometer is a device that is used in vehicles to measure the distance covered by vehicles Distance Odometer is a device that measures the distance travelled by an automobile based on the perimeter of the wheel as the wheel rotates. The odometer of an automobile measures the distance covered by that automobile. |
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| 5733. |
Determine the acceleration of a car mass 8000 gram on application of a 420 Newton on it. |
| Answer» Mass=8000g =8 kg and force=420n. Since . Force =(Mass)(Acceleration) so acceleration= 420/8=52.5 m/s^2 | |
| 5734. |
Give chemical formula of lime water, quick lime, baking soda, washing soda, aluminium flouride |
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| 5735. |
Are vaccination and immunisation two different terms? If yes, give reasons |
| Answer» \tDifference Between Vaccination And ImmunizationVaccinationImmunizationThe process involves Introducing a weakened / deactivated disease causing microbes into a personThe process starts after the person is exposed to the vaccine and the body starts building resistance to that diseaseIt is usually injected or administered orallyIt is not administered in any way, the body develops the resistance from vaccinesImovax Rabies is the trade name for rabies vaccineThe body builds up immunity through this vaccine for the disease rabiesVaccination does not guarantee complete resistance to a diseaseComplete immunity occurs when the person fully recovers from the diseaseUsually, if mutation happens to microbe, it might render the vaccine ineffective (this is the reason why common cold has no vaccine)Similarly, variations of a disease impact the body’s ability to generate an immune response\t\xa0 | |
| 5736. |
Exact defination of nomenclature? |
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| 5737. |
Why does temperature remain constant during change of state |
| Answer» The temperature of any substance remain constant during the change of state because the heat energy supplied is used up in changing the state of matter and also this heat is used for breaking of several bonds or attractive forces.This heat, which does not raise the temperature of the body, is called Laten heat. | |
| 5738. |
Why are Cloud become in only black colour in monsoon why not other colours? |
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| 5739. |
0.5 mole on of water molecules? |
| Answer» 0.5×18=9 gm | |
| 5740. |
Air is considered a mixture give three reason |
| Answer» In general compounds are formed by the chemical combination (chemical reaction) of different elements, molecules with each other. Whereas mixtures are formed by the combination of different elements, molecules and even compounds which are not chemically reacted with each other.Air is considered as a mixture of gases, as the component gases does not reacts with each other.If the gases present in it reacts with each other then it will not considered as mixture but as a compound. | |
| 5741. |
Define inertia and state unit si unit of firce and inertia |
| Answer» Inertia - The property of an object because of which it resists to get disturb its state is called inertiaS.I . unit of inertia is kgAnd ,The S.I. unit of force is kg m per sec square . this is also known as Newton | |
| 5742. |
Write 4 important features that all chordata possess |
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Answer» They have paired gill slits in the pharynx. They have a post- **** tail and a dorsal, hollow nerve tube. They have nerve cord at some stage of their life Shellfish time and I fk time fj fk go rk the k fktf |
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| 5743. |
The frequency of a wave is 40hz and it\'s wavelength is 8m find velocity of the wave |
| Answer» Frequency = 40 hzwavelength = 8mvelocity = frequency x wavelength\xa0= 40 x 8 = 320 m/s | |
| 5744. |
What are the sources of water |
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Answer» Sources of surface water can include any above-ground collection of water such as rivers, lakes, ponds and oceans. Some sources of surface water are also fed by underground aquifers. Surface water accounts for 80 percent of the water humans use. Rain |
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| 5745. |
Describe the food production management |
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| 5746. |
Write a note on how forest influence the quality of air soil and water resources |
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| 5747. |
What are the two forms of oxygen found in the atmoshpere? |
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Answer» In the atmosphere oxygen is found in two forms:1) diatomic molecules have to oxygen atom O22) Ozone triatomic state has three oxygen atom O3 Monoxide and dioxide |
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| 5748. |
Name two biologically important compounds that contains both oxygen and nitrogen |
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Answer» 1) DNA 2) RNA Nitrogen oxide |
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| 5749. |
How does the atmosphere acts as a blanket? |
| Answer» The atmosphere mainly consists of air and covers the earth like a protective blanket the Ozone layer of the atmosphere protect life from harmful ultraviolet rays | |
| 5750. |
What is meant by space observation? Why is it important.? |
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