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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.
| 2151. |
What\'s latent heat? |
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Answer» Latent heat is hidden heat Hidden heat Latent heat is the heat energy required to change the state of matter without change in temperature Latent heat means hidden heat |
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| 2152. |
Can you name the two organelles we have studied that contains their own gentic material |
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Answer» Endoplasmic reticulum and mitochondria DNA and PLASTID Mitochondria and plastids |
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| 2153. |
Difference between three states of matter |
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Answer» Solids have a definite shape, distinct boundaries & fixed volume,that is , have negligible compressibility . Solids have a tendency to maintain their shape when subjected to outside force . So they are RIGID .Liquids have a fixed volume but not a fixed shape . They take up the shape of the container in which they are kept . Liquids flow &change shape , so they are not rigid they are fluid .Gases don\'t have a definite shape or volume. They are highly compressible. They also take the shape of the container in which they are kept. They also flow , so they are also called fluids. Solid have definite shape and volume and are incompressible.Liquid have definite volume but not definite shape and it is almost incompressible.Gases have not definite shape and volume and highly incompressible.Solid posses rigidity and liquid and gases posses fluidiy . |
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| 2154. |
What is the effect of pressure on 3 state of matter? |
| Answer» The physical state of matter can be changed by changing the pressure. By lowering temperature and increasing the pressure gases can be changed into liquids and some solids can be changed into gases on decreasing the pressure. This happens with gases as there is lots of space between the particles of a gas and upon applying high pressure particles come close to each other which upon cooling gets liquified.\tIf the pressure above a liquid is increased sufficiently, the liquid forms a solid.\tIf the pressure above a liquid is decreased sufficiently, the liquid forms a gas. | |
| 2155. |
Why desert cooler keeps cooling? |
| Answer» B coz it\'s cooler | |
| 2156. |
Difference between cohension and Anderson |
| Answer» Cohesion attracts the molecules of same kindAdhesion attracts the molecules of different kind | |
| 2157. |
What is the proper n correct definition for nucleus |
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Answer» Nucleus The brain of the cell |
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| 2158. |
What do u understnd by..an object is in motinnor rest |
| Answer» | |
| 2159. |
Who is\xa0discovered cell and how? |
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Answer» Robert hooke Robert Hooke discovered cell in 1665 while he was observing a thin slice of cork |
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| 2160. |
What is a speed? |
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Answer» The measure how fast an object is moving Distance travelled by an object on a particular time interval |
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| 2161. |
Even Human being have Electrons but why cant human being attract objects |
| Answer» B coz I told them | |
| 2162. |
Discribe the characteristics of particles of matter? |
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Answer» Particles are constantly moving Particles of matter attract each other Particle of matte have space between them |
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| 2163. |
What is direction |
| Answer» A course along which someone or something moves | |
| 2164. |
Smallest cell, longest cell and largest cell |
| Answer» Mycoplasma,nerve cell , ostrich\'s egg respectively | |
| 2165. |
Books extra quesrion |
| Answer» See S.Chand | |
| 2166. |
Different in plant and animal cell |
| Answer» Plant cell has chloroplasts (A cell wall) but animal cell does not have chloroplasts | |
| 2167. |
cell structure |
| Answer» Cells come in all shapes and sizes. While most of the cells are spherical in shape, cells of various other shapes are also found. Most of the cells are microscopic in size, i.e. it is impossible to see them with naked eyes. Some cells are fairly large, e.g. a neuron in human body can be as long as 1 meter. The egg of an ostrich is the largest known cell of a living animal and an average egg is 15 cm long and 13 cm wide.Cell wall: Cell wall is made of cellulose. It is somewhat hard but permeable to most of the substances.Plasma membrane: Plasma membrane is a semi-permeable membrane. It is composed of bilayer of lipid and protein.Nucleus: Nucleus is covered by double membrane; called nuclear membrane. The fluid which is inside the nucleus is called nucleoplasm. Nucleus contains chromosomes which are important for the functioning of a cell.Mitochondria: Mitochondrion is a capsule-like structure. It is a double membrane structure. Its inner membrane is projected into numerous finger-like structures; called cristae. Mitochondria are the sites of cellular respiration.Endoplasmic Reticulum: Endoplasmic reticulum is a mesh-like structure which is composed of numerous tubes. It extends from the plasma membrane to the nuclear membrane.Golgi Complex: Golgi Complex was discovered by Camillo Golgi. It is composed of many sac-like structures which are stacked one above another.Lysosome: Lysosome are small sac-like structures and they are derived from Golgi complex. Lysosome contains digestive enzymes. | |
| 2168. |
What is compoun |
| Answer» | |
| 2169. |
Differentiate between evaporation and vapourisation ? |
| Answer» Evaporation is a phase transition, where liquid phase changes to its gas phase at its boiling point. Different liquids have different boiling points and it depends on the strength of intermolecular forces. Evaporation changes the liquid state of matter into a gas. Evaporation can happen with the right amount of heat, humidity, and air movement.Vaporization is a spontaneous process which occurs at the surface of a liquid. Vaporization depends on the external factors such as wind speed, humidity temperature and the surface area of the liquid. Vaporization changes the phase or state of matter from a solid or liquid to a gas. Vaporization can occur with boiling, sublimation, or evaporation | |
| 2170. |
Vhbbb |
| Answer» | |
| 2171. |
Smell of perfume is matter how |
| Answer» | |
| 2172. |
Summary of chapter 5 |
| Answer» Which subject | |
| 2173. |
Easy diagram of plant cell |
| Answer» | |
| 2174. |
What is cristae and cisternae? |
| Answer» Only i know that, cristae is present in mitachondria | |
| 2175. |
How does different states of matter diffuse into liquid |
| Answer» | |
| 2176. |
What is RESISTANCE |
| Answer» Fluid friction is a resistance offered by a flow | |
| 2177. |
What type of clothes should we should we wear in summer |
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Answer» We should wear cotton clothes in summer because they absorb the sweat and is thin Cotton cloth |
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| 2178. |
Why can the solid be scratched |
| Answer» solids can be scratched b-coz its particles are tightly packed so that can\'t be displaced and hence our force result in scratches | |
| 2179. |
What is evaporation and condensation |
| Answer» The process of change of solid into gas below its boiling point is called evaporation | |
| 2180. |
What is origin? |
| Answer» The point which describe reference point | |
| 2181. |
Write a property of metal |
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Answer» Malleability Sonority Ductility |
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| 2182. |
What are differences between plant and animal tissues |
| Answer» Plant tissue1) Plant tissue have a stationary phase.2 Plant tissue do not require lot of energy3 Plant tissue have more dead cells as it produces mechanical energy4) Plant tissues are able to make their own foodAnimal tissue1) Animal tissue have locamative phase2) Animal tissue require a lot of energy3) Animal tissue have more living cells.4) Animal tissue cannot make their own food and depend on other organism | |
| 2183. |
What is cell of the kitchen |
| Answer» Kitchen of cell is chloroplast | |
| 2184. |
As gas can be best liquefied by |
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Answer» By applying pressure and decreasing temperature. Annjaj |
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| 2185. |
Which one diffuse faster H or carbon dioxide . And explain rate of diffusion |
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| 2186. |
Displacement example |
| Answer» | |
| 2187. |
What who is the smallest cell |
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Answer» Mycoplasma or pplo Smallest cell is PPLO(pleuro pneumonia like organisms) or bacteria cell In human body blood cells are smallest cell and nerve cell is largest cell |
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| 2188. |
What are the characterstics of particles of matter |
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Answer» ▪Particles of matter have space between them▪Particles of matter are continuously moving▪Particles of matter attract each other 1.solid -a solid matter like piece of wood2.liquid-a liquid matter like water3.gas-a gaseous state like oxygen 4.plasma-a jelly matter like plasma of cell5.bose einstien -a liquid cum jelly like matter like cytoplasam Solid,liquid and gas |
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| 2189. |
How can the weeds removed from the field |
| Answer» By hand which is called weeding we can remove weeds from field | |
| 2190. |
Who discovered electron microscope in 1840 |
| Answer» "Antoni wan leeuwenhoek" discovered the electron Microscope ?? | |
| 2191. |
The particles of matter attract each other |
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Answer» Inter molucular force Is called inter-particle force. |
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| 2192. |
Write a method to liquefy atmospheric gases |
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Answer» By increasing temperature and reducing pressure Compression is a method to atmospheric gaSes |
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| 2193. |
How was the cell discovered and what is cell theory and who prepared it |
| Answer» Cell was discovered by robert Hooke in 1888 .He saw a small compartments in his own compounded microscope. | |
| 2194. |
Difusion in solid liquid and gas |
| Answer» Diffusion in gases\t It is very fast (becoz the particles in gases move very quickly in all directions )\tThe rate of diffusion of a gas, depends on its density. Light gas diffuse faster than heavy gases.\tE.g. when we light an incense stick (agarbatti) in a corner of our room,it\'s fragrance spreads in the whole room very quickly to diffusion of its smoke into airDiffusion in liquid\xa0\tIt is slower than gas ( becoz particles in liquid move slower than gases )\tE.g. the spreading of purple colour of potassium permanganate into water, on its own, is due to the diffusion of potassium permanganate particles into water\xa0Diffusion in solids\xa0\tIt can also takes place in solids . In this diffusion is very very slow process .\tE.g. if we write something on blackboard and leave uncleaned for considerable period of time, we will find that it becomes quite difficult to clean afterwards . This is due to the fact that some of particles of chalk have diffused into surface of blackboard .\xa0 | |
| 2195. |
How we can solve physics numerical problems of HC verma it have some tricks ??? |
| Answer» First do a fbd (free body diagram) and write what r given in the question and solve the numerical........ Beleive me it\'s really help you in ur xam......... | |
| 2196. |
Naphthalene balls dissapear with time without leaving any solid |
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Answer» Naphthalrne balls dissapesr with time without leaving any solid because it convert into gaseous form and this process is called sublimate. This is due to the process known as sublimate when naphthalene balls kept it changes into gaseous form without leaving any solid |
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| 2197. |
Which of the following are matter?small chair,air,leave,hate,almond,thought,cold-drink |
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Answer» Yes and they too occupy space Small chair,air,leave,almond,colddrink are matter because they have mass and volume Give me my answer fast Yes |
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| 2198. |
Ncerty |
| Answer» Ncert is very useful where is your question friend | |
| 2199. |
Who came first in world |
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Answer» Bacteria How silly questions you are asking sakshi Insects Human being |
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| 2200. |
Why sky colour is blue |
| Answer» Why sky colour is blue because the colour of a sky is blue | |