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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.
| 1651. |
Why does a desert cooler better on a hot dry day? |
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Answer» Because the wood wool attached at three corners become wet due to motor pressure.when warm air come in the cooler the process of evaporation take place and make the surrounding and the area within the cooler cold and that cold air is passed on unto the room In a desert cooler hot and dry air passes through wrt pads of wood wool . Water take heat from the hot air and evaporates . The evaporation of water cools the pads and the circulating water . As a result the incoming air also gets cooled |
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| 1652. |
Difference between speed and velocity |
| Answer» Speed is a scalar quantity. It has only magnitude.Velocity is a vector quantity . It has magnitude and direction.Example : If a man covers a distance of 5 kms from point A to B in one hour and returns from B to A in 3 hours then,Average Speed = Total distance / total time = 5+5/1+3 = 10/4 = 2.5 km/hAverage Velocity will be zero because net displacement of the man is ZERO , as he has started from A returned back to A. | |
| 1653. |
Which which force is applied in when we lift a bucket |
| Answer» only muscular force | |
| 1654. |
Which state of matter has neither definite shape not volume |
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Answer» Gas state Gas Gas Answer Gaseous |
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| 1655. |
World \'s biggest cell in this world |
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Answer» An district\'s egg An Ostrich\'s egg cell Ostrich egg cell Ostrich cell Ostrich egg Ostrich cell Ostrich egg cell |
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| 1656. |
What are cis face and trans face |
| Answer» | |
| 1657. |
What is difference between plant and animal tissue |
| Answer» Difference between plant and animal tissue is due to fact that animals move while and plants are stationary | |
| 1658. |
Definition of golgi apparatus |
| Answer» | |
| 1659. |
w where are the proteins synthesised inside the cell |
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Answer» In ribosomes Protienes are synthesised by ribosomes |
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| 1660. |
why does the temperature of water does not change while changing its state |
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Answer» Because the hidden heat is used to overcome the forces of attraction between the particles of substance Because latent heat is absorbed which is used to change the state |
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| 1661. |
Who discovered nucleus |
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Answer» Robert Brown Robert Brown Robert brown Robert brown is the correct answer Robert hooke in 1601to 1665 Robert brown |
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| 1662. |
What is caracteries of particals of matter |
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Answer» 1. Particles of matter are small in size.2. Particles of matter are in continuous motion.3. Particles of matter attract each other.4. Particles of matter have space between them. 1.Particles of matter have space between them2. Particles of matter are continuously moving3. Particles of matter attract each other Particles of matter are continuous moving particles of matter have space between them particles of matter have attraction between them . Partical of matter have innermolecul space between them .par |
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| 1663. |
20 numericals on motion chapter 9 |
| Answer» 20 numericals on motion chapter 8 class 9th | |
| 1664. |
What do you mean by organic farming? |
| Answer» | |
| 1665. |
what is a wave? |
| Answer» | |
| 1666. |
Why boiling point of water is lower in Shimla than in Delhi??? |
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Answer» Because shimla is at higher altitude and the atmospheric pressure is less in shimla Because shimla is a cold place |
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| 1667. |
What is difference between vapour and evaporation? |
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Answer» Thanks ayushi Vapour is the gaseous state of a substance or we can say it is a phase and evaporation is change of liquid into its vapour at temperature below its boiling point |
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| 1668. |
What is pancha tatva |
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Answer» Aakash,jal, vayu, Prithvi, Agni are known as panch tatva from which according .to hindi mythology our body is made up of... Sky, earth,fire, water and wind are the pancha tatva |
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| 1669. |
What is phagocytosis? |
| Answer» The ingestion of bacteria or other material by phagocytes and amoeboid protozoan. | |
| 1670. |
If there is no nucleus in our cell what will hapen |
| Answer» The cell will perform its basic function and thus there would be no human life on Earth | |
| 1671. |
What is instanteneous velocity |
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Answer» Velocity of a body at a given instant The velocity of an object at any instant during it\'s motion. |
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| 1672. |
Reaction of nutilizatitio reaction explain |
| Answer» Acidic and basic | |
| 1673. |
What is drip system |
| Answer» It is a process in wich the the water is supplied by drop by drop into crope | |
| 1674. |
If plasma membrane reptures or break down. what will happen?? |
| Answer» Theer would be free movement of substances. | |
| 1675. |
Example of macronutrients |
| Answer» There are three macronutrients required by humans: carbohydrates(sugar), lipids(fats), and proteins. Each of these macronutrients provides energy in the form of calories. For example: in carbohydrates there are 4 calaries per gram. | |
| 1676. |
Questions on mater in our surrondung |
| Answer» Yes | |
| 1677. |
What is passive transport |
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Answer» It is the transport in which ATP is not required. High to low concentration movement |
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| 1678. |
Justify: water is liquid at room temperature |
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Answer» But the force of attraction cannot be seen by naked eyes Water is liquid at room temperature because at room temperature the particles of water are loosely packed and have less force of attraction |
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| 1679. |
What is the common name of mitochondria |
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Answer» It is also called power house of the cell ☺ Yes Mitochondria is also called "power house of the cell". |
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| 1680. |
Who could a gas was change into solid |
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Answer» By the process of sublimation By sublimation |
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| 1681. |
How is ammonia gas liquefied? |
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Answer» Ammonia gas is liquefied by increasing pressure and decreasing temperature.Gases can be liquefied at high pressure and low temperature.Lowering the temperature is done by continuously pouring water over the coils carrying compressed gas. By applying pressure and cooling |
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| 1682. |
How will you demostrate that water vapour is present in air? |
| Answer» Take ice cold water in a glass tumbler. We will wait for sometime. We will observe that water droplets are formed at the outer surface of the glass tumbler. It shows that there are water vapour in air, on coming in contact with cold glass of water. Vapours loses energy and gets converted into liquid state which we see in the form of water droplets. Air containing water vapours which get condensed by coming in contact with cold surface of glass. So it is proved that there are water vapours in air. | |
| 1683. |
How does the temperature bring about the interchangibility between the three states of mattet |
| Answer» When heat energy is supplied to ice it changes into water and then to vapor. If we cool the steam it gets converted into water and further cooling of water changes into ice.Here the heat energy is used up in changing the state of matter. the heat is used to increase the kinetic energy of the particles of ice to such an extent that they break away from the rigid lattice structure of the solid form, ice, and move around freely to form the liquid form, water. So, until all the ice has melted, the heat absorbed does not raise the temperature of the ice-water mixture. In the same way the temperature does not change while a liquid is boiling.\xa0This heat, which does not raise the temperature of the body, is called Latent Heat. | |
| 1684. |
How many atoms are present in ammonium sulphite |
| Answer» (NH4)2SO4So, 2 N, 8 H, 1 S, 4 O = 15 totalIn one mole(unit) of any substance there are 6.022 x 1023 particles. This number is known as Avogadro\'s number. So for ammonium sulfate there would be 15 times this number = 9.033 x 1024.However, 1 molecular unit of ammonium sulfate contains 15 atoms. | |
| 1685. |
Is it possible to rise the temperature of the water to 110°c? Why |
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Answer» Because tje boilimg point of water is 100c at which it change its state to gas Absolutely not |
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| 1686. |
How is prokaryotic cell different from a cell ? |
| Answer» \t\xa0Prokaryotic cellEukaryotic cell1. Size : generally small ( 1-10 µm) Where 1 µm = 10-6m1. Size: generally large ( 5-100 µm)2. Nuclear region: It is not well defined and known as nucleoid.2. Nuclear region: well defined and surrounded by a nuclear membrane3. Chromosome: single3. More than one chromosome4. Membrane-bound cell organelles absent4. Membrane-bound cell organelles are present.\t | |
| 1687. |
What is plasmodestomata |
| Answer» It is a process | |
| 1688. |
what happen to the melting point of pressure when it increases |
| Answer» At a particular temperature, the separation of the molecules increases by a large amount and the solid melts and converts into liquid. This particular temperature is the melting point of that solid. The melting point of a pure substance is always higher than the melting point of that substance when a small amount of an impurity is present. Pressure affects the melting point of a substance. As the pressure on the substance increases, the melting point decreases. | |
| 1689. |
Why kelvin is regarded as better scale than Celsius |
| Answer» Because it is the s.i unit of temperature and we can convert k into Celsius | |
| 1690. |
Site of energy release in cells |
| Answer» Mitochondria it is also known as powerhouse of the cell which is used to generate high energy ATP molecules. | |
| 1691. |
Paticle |
| Answer» | |
| 1692. |
What is meant by saying that latent heat of vaporisation of water to 226 kj/kg^-1 |
| Answer» | |
| 1693. |
How would you confirm that a colourless liquid given to you is pure water |
| Answer» The purity of a substance is confirmed by determining its boiling point and the boiling point of normal pressure is 0 degree Celsius | |
| 1694. |
Diagram of fluid mosaic model |
| Answer» Protein , lipid . Lipid Protein is it right | |
| 1695. |
In which state of matter the force of cohesion is minimum? |
| Answer» Gas | |
| 1696. |
What is biosynthesis? |
| Answer» | |
| 1697. |
what is odomer |
| Answer» Odometer is a instrument that is used to measure total distance of a body | |
| 1698. |
What is odometer |
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Answer» Rahul it is not distance it is total distance Odometer is instrument which is used to measure distance of an object. |
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| 1699. |
Why there is moon |
| Answer» What¿¿¿¿¿¿¿ | |
| 1700. |
Huu |
| Answer» | |