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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.
| 7101. |
Why people try to foeticide |
| Answer» Because wo daughters ko bojh samajhte h | |
| 7102. |
What are the 3 equations of motion |
| Answer» v =u +atS =ut+1/2 at squarev square =u square 2as | |
| 7103. |
Two characteristics of diffusion |
| Answer» 1)They not require semipermeable membrane.2)They exist in solid, liquid and gas. | |
| 7104. |
Difference between mitosis and meiosis |
| Answer» Differences between Mitosis and Meiosis\tMitosisMeiosis1. Takes place in somatic cells.1. Takes place in gametic cells.2. Two daughter cells are formed in the end.2. Four daughter cells are formed in the end.3. Number of chromosomes remains same in daughter cells as compared to those in parent cells.3. Number of chromosomes is halved in daughter cells as compared to those in parent cells.4. Cell division happens in simple steps.4. Cell division involves multiple and longer stages.\t | |
| 7105. |
Explain second law of motion with three examples |
| Answer» Newton’s second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.Examples of Newton\'s second law of motion:(i) We have seen a cricket player lowers his hands while catching a ball. By lowering the hands, he increases the time of catching the ball. As a result, the rate of change of momentum decreases and by Newton’s second law, the force exerted on his hands is less. So he is less likely to hurt.(ii) Chinawares are wrapped in straw paper before packing. The straw paper between the chinawares increases the time of experiencing the jerk during transportation. Hence, they strike against each other with a less force and are less likely to be damaged.(iii) When we jump on a muddy floor, than on a hard floor we are less hurt. On a muddy floor, the floor is carried in the direction of the jump and the time interval for which force acts is increased. This decreases the rate of change of momentum and hence the force of reaction. Thus, the person is hurt less. | |
| 7106. |
Difference between rest and motion |
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Answer» The objects which do not change their positions with time are said to be at rest. The objects which change their positions with time are said to be in motion. Rest An object is said to be in rest when it does not change it\'s position. MotionAn object is said to be in motion when it changes it\'s position Rest :- Position or orientation of the object remains same and there is no change of position and change of orientation with respect to time.Motion:- motion of the object is due to change of position or change of orientation with respect to time. |
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| 7107. |
What does a naphthalene ball made up of ? |
| Answer» Ammonium choride | |
| 7108. |
Defination of intermolecular force of attraction |
| Answer» Intermolecular forces (IMF) are the forces which mediate interaction between molecules, including forces of attraction or repulsion which act between molecules and other types of neighboring particles, e.g., atoms or ions. | |
| 7109. |
What is the difference between chromatin and chromosomes ? |
| Answer» \tChromatinChromosome1.It is the nucleoprotein of chromosomes which stains strongly with basis dyes and is present inside the nucleus.1.Thread - like, stainable, condensed chromatin, visible at cell division and containing hereditary information in the form of genes.2. Chromatin Fibers are Long and thin. They are uncoiled structures found inside the nucleus.2. Chromosomes are compact, thick and ribbon-like. These are coiled structures seen prominently during cell division.3. Chromatin is unpaired.3. Chromosome is paired.4. Found throughout the cell cycle.4. Distinctly visible during cell division (metaphase, anaphase) as highly condensed structures upto several thousand nm.\t | |
| 7110. |
Exact defination of dry ice |
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Answer» Dry ice is solid Carbon dioxide Dry ice is solid carbon dioxide. By the process of sublimation the solid dry ice is converted into gas without turning into liquid.SUBLIMATION It is the process of turning solid into gas or gas into solid without turning into liquid. SOLID = GASGAS =SOLID Dry ice may be refers to the solid carbon dioxide that can be easily liquefied imder the pressure of 60 atmosphere at thr room temperature Dry ice is solid carbon dioxide. carbon dioxide can be easily liquefied under a pressure of 50-60 atmosphere at room temperature. When liquid carbon dioxide is allowed to evaporate suddenly, it changes to solid called solid carbon dioxide or dry ice. It is called dry ice because it looks like ice and does not wet cloth or paper. |
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| 7111. |
What is genes? Write difference between genes and chromosomes? |
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Answer» Gene is\xa0a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.Genes\xa0contain DNA (deoxyribonucleic acid). DNA\xa0is\xa0the chemical basis\xa0of\xa0heredity. Think\xa0of\xa0it this way: DNA\xa0is\xa0in\xa0genes,\xa0genes\xa0are on\xa0chromosomes. When "mapping" all\xa0genes\xa0on all human\xa0chromosomes\xa0was first seriously conceived, it was called the Human Genome Project - a combination\xa0of gene and chromosome. Gene is the functional segment of DNA |
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| 7112. |
difference between endoplasmic reticulam and smooth endoplasmic reticulam |
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Answer» function of ER is to frame skeleton stucture &ribosomes attached to them for protein synthesis whereas SER is associated to synthesis of lipid polysacharides harmones etc. The endoplasmic reticulum main function to frame the skeleton structure and the smooth endoplasmic reticulum main function to form the substance like lipid and hormone. |
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| 7113. |
Define acleration |
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Answer» Acceleration is the rate of change of velocity per unit of time. A=dellta v/ delta t |
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| 7114. |
Define velocit |
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Answer» Velocity is the speed of an object in a given direction. Change in distance per unit time in a definite direction is called velocity ? V=displacement/time |
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| 7115. |
Activity to show that aqoues solution of hcl conducts electricity |
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Answer» Solution of HCl is taken in the beaker and a cork with two nails fixed on it, is put in this beaker. The nails are connected to the two terminals of a 6 V battery through a bulb and a switch as shown in the fig. Now switch on the current. The bulb is found to glow.This shows that HCl in aqueous media forms H+ ions which are responsible for electrical conductance in the solution. Take a beaker and fill with aquoues solution of HCl in it.Join two electrodes positive and negative.And join the electrodes with bulb by wire.then , you can observe that the bulb glows. |
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| 7116. |
Sponge is a solid still we are able to compress it why |
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Answer» Because it is porous and because of it air gets into it and when we compress it air comes out and it become compressed after when we stop applying pressure again air comes in the sponge and it gets in its orignal shape that\'s why we are able to compress the sponge. because it has porous on it But again it comes to its original position Because it is porous |
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| 7117. |
Article on ch 1 |
| Answer» | |
| 7118. |
What is the definition of average velocity |
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Answer» the velocity that is measured the arithmetic calculation from final and initional point in given time Average velocity of a object can be defined as total displacement divided by total time taken. |
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| 7119. |
What is chemical nature of plasma membrane |
| Answer» Plasma membrane is made up of a two layers . This bilayer is composed of two layers of lipids (consists mostly of phospholipids and to a smaller extend of glycolipids). Glycolipids are generally found in the outside layer, whereas phospholipids are predominantly in the inside layer (cytoplasmic side). The other important component of the plasma membrane is protein. Proteins can be associated with the outside (peripheral) of the membrane or they extend throughout the entire membrane (transmembrane). Plasma membrane has 50-50% of both lipids and proteins. | |
| 7120. |
Define intermolecular space between atoms |
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Answer» Inter molecular forces are force of attraction or repulsion which act between neighbouring particles. Intermolecular space is the space between two molecule or atom. In solids it is very little, in liquids is more the solids but less than liquids and in gases its the maximum. |
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| 7121. |
Define substance |
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Answer» Substance is a kind of matter which cannot be converted into another kind of matter by any physical process A pure substance may be defined as a single substance (or matter) which cannot be separated by simple physical methods.Pure substances can be further classified as (i) Elements (ii) Compounds |
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| 7122. |
Define compressibility |
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Answer» Pressure Compressibility is defined as the change in the volume of a substance in response to the pressure change. In other words, it is the reduction in volume of a substance when external force is applied. For example when high pressure is applied on gases, the molecules of gases come close together. The gases condense into liquids and occupy lesser volume. Thus gases have high compressibility. |
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| 7123. |
what are digestive bags? Describe their structure and function.\xa0 |
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Answer» Lysosomes are known as digestive bag.. Lysosomes are known as digestive bag.they are small spherical bodies few micrometer in size.they are produced from golgi bodies. they are called digestive bag because it digest every foreign material as well as work out the organelles.Function :\tlysosomes destroy unnecessary particles.\tthey contain hydrolysing enzymes and usually take part in the digestion of food.\xa0 |
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| 7124. |
Does water rise if we add a teaspoon of salt in100 ml of water |
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Answer» No, because the solute , that is salt will be dissolved in the interstitial spaces btw the molecules of the solvent , that is water. yes |
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| 7125. |
In bio ch-5 you have no extra questions ?? |
| Answer» I have | |
| 7126. |
Define inertia of uniform motion |
| Answer» | |
| 7127. |
Role if transpiration in planta |
| Answer» Transportation of plants: The root cells absorb water (by osmosis) and mineral salts continuously from the soil. This produces a force that pushes the water upwards. The evaporation of water from the leaf surface, known as transpiration also produces a pulling force that causes the water to move upwards.The transpiration of water and dissolved mineral salts, from the root to the stem, leaves, flowers and other parts of the plants takes place through the xylem. This movement of sap that contains water and minerals is called ascent of sap.The food prepared by the leaves is transported to all parts of the plant in the form of a solution through a process known as translocation. Translocation takes place through the cells of phloem. | |
| 7128. |
Cbse periodic test 1paper class9 solbed |
| Answer» | |
| 7129. |
What is discase ?how many types of discases you have study . Give example |
| Answer» Any disorder or malfunctioning of the body or mind that destroys good health can be called as a disease.Typhoid: It is caused by the bacterium, Salmonella typhi. The pathogen enters the body through contaminated food and water. High fever, weakness, stomach pain, headache, constipation, loss of appetite are the symptoms of this disease. Widal test confirms this disease.Pneumonia: It is caused by Streptococcus pneumoniae and Haemophilus influenzae bacteria. This disease affects the lungs. The alveoli of the lungs get infected and filled with fluid, causing respiratory problems. This is a disease that is acquired by inhaling the droplets or aerosols that are released by an infected person. The main symptoms include chills, fever, headache, and cough.Common Cold: The common cold is generally caused by a group of viruses called rhinovirus. The respiratory passage and the nose are commonly infected here. Nasal congestion, discharge, sore throat, cough, hoarseness, tiredness, are some of the associated symptoms of common cold, that can last for up to seven days.Malaria: It is a disease caused by a protozoan called Plasmodium. There are different types of malaria caused by different types of species of Plasmodium. Some of the species are Plasmodium vivax, Plasmodium malaria, Plasmodium falciparum. Malignant and fatal malaria is caused by Plasmodium falciparum.\xa0 | |
| 7130. |
What is disease?how manny types of discasea you have studeed give example |
| Answer» Any disorder or malfunctioning of the body or mind that destroys good health can be called as a disease.Typhoid: It is caused by the bacterium, Salmonella typhi. The pathogen enters the body through contaminated food and water. High fever, weakness, stomach pain, headache, constipation, loss of appetite are the symptoms of this disease. Widal test confirms this disease.Pneumonia: It is caused by Streptococcus pneumoniae and Haemophilus influenzae bacteria. This disease affects the lungs. The alveoli of the lungs get infected and filled with fluid, causing respiratory problems. This is a disease that is acquired by inhaling the droplets or aerosols that are released by an infected person. The main symptoms include chills, fever, headache, and cough.Common Cold: The common cold is generally caused by a group of viruses called rhinovirus. The respiratory passage and the nose are commonly infected here. Nasal congestion, discharge, sore throat, cough, hoarseness, tiredness, are some of the associated symptoms of common cold, that can last for up to seven days.Malaria: It is a disease caused by a protozoan called Plasmodium. There are different types of malaria caused by different types of species of Plasmodium. Some of the species are Plasmodium vivax, Plasmodium malaria, Plasmodium falciparum. Malignant and fatal malaria is caused by Plasmodium falciparum. | |
| 7131. |
In which 3 thing the chemistry is not available in it |
| Answer» | |
| 7132. |
How can we separate a mixture of salt and camphor ?Explanation... |
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Answer» By using the process of Sublimation By using technique SUBLIMATION Sublimation is the process which is used to separate the mixture of camphor and salt. Camphor gets directly converted to its gaseous state, leaving the salt behind. |
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| 7133. |
Differentiate between apical, lateral and intercalary tissues |
| Answer» 1. Apical Meristem: Apical meristem is Located at the growing points of the stem, roots, branches and in growing young leaves near the tips of stems and axillary buds.It enables the root and stem to grow by increasing the length of plants.2. Lateral Meristem: It is present laterally (on the sides) on the roots and stem and is situated parallel to the longitudinal axis below the bark.It is also found in vascular bundles of dicot roots and stems. The girth and width or diameter or thickness of the stem or root increases due to the lateral meristem.3. Intercalary Meristem: It is located at internodes or stem regions between the places at which leaves attach, and at leaf bases, especially of certain monocotyledons.The cells of the intercalary meristems are active and continuously form a number of new cells. | |
| 7134. |
What is the utility of tissues in multicellular organism |
| Answer» In multicellular organisms, several cells are grouped to form tissues. These tissues perform particular function at a definite place in the body. For example, nerve cells from the nervous tissue which helps in transmission of messages. This is known as division of labour in multicellular organisms. Because of this division of labour, multicellular organisms are able to perform all functions perfectly. | |
| 7135. |
Differentiate between animal tissues and plant tissues |
| Answer» \tPlant tissueAnimal tissue1) they have a stationary phase.1) they\'ve locamative phase2) they do not require lot of energy2) they require a lot of energy3) they have more dead cells as it produces mechanical energy3) they have more living cells.4) they are able to make their own food4) they cannot make their own food and depend on other organism\t | |
| 7136. |
Deffrentiate between meristmetic tissues and permanent tissues |
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Answer» \t Meristematic tissue Permanent tissue i. Cells of meristematic tissue divide repeatedly. i. Cells of permanent tissue do not divide and are derived from the meristematic tissue. ii. The cells are not differentiated. ii. The cells are differentiated. iii. The cells are isodiametric. iii. The cells are variable in shape. iv. Vacuoles are not present. iv. In mature cells, large vacuoles are present. \t
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| 7137. |
Define: endoplasmic reticulum (ER) , Golgi apparatus, mitochondia, lysosoms, vacuole, plastids |
| Answer» \xa0Golgi apparatus: Golgi apparatus appears as flattened sac like structure arranged parallely one above the other called as cisterns. Cisterns are membrane bound vesicles that keeps material inside the apparatus separated from outside cytoplasm. This cell organelle package and process material i.e. proteins and lipids in and out of cell. Golgi apparatus converts simple sugars into complex sugar. It also forms lysosomes.Lysosomes: \xa0Lysosomes are membrane bound, spherical shaped structure filled with digestive enzymes that are manufactured by RER. This cell organelle, digest waste by breaking it into small pieces and keeps cell clean. If cell gets damaged it digests its own cell. Hence, lysosome is also known as suicide bags of cell.Mitochondria:\xa0It is made up of inner and outer membrane. Outer membrane separates internal part of mitochondria from other cell organelles, whereas, inner membrane has folded structures called cristae. Mitochondria contains fluid called matrix containing DNA of mitochondria, ribosomes, etc. This cell organelles is called as powerhouse of cell\xa0as it stores energy in the form of ATP i.e. Adenosine Triphosphate molecule. These are generated on the folds of inner membrane. Energy stored in this cell organelle is used during chemical activities or while performing mechanical work. Mitochondria can generate protein due to presence of ribosomes.Plastids: This cell organelle is present only in cell cell appears like mitochondria. Plastids are made of large number of layers fixed in a material called stroma. It contains its own DNA and ribosomes. Plastids are of two types chromoplast i.e. coloured plastid and leucoplast i.e. white plastid. Plastids manufacture and store food in plants. Chromoplast in the form of chloroplast is used in photosynthesis. Leucoplast stores materials like starch, oil and proteins granules, etc.Vacuoles: This cell organelle stores solid or liquid material. In plants vacuoles are large taking maximum part of plant cell, whereas, in animal cells vacuoles are small. In plants, vacuoles stores material like amino acid, sugar, proteins, etc. turgidity of cells is due to vacuoles. In unicellular organisms vacuoles removes excess of water and waste material out of cell. It also stores food items consumed by organisms. | |
| 7138. |
Define point object with example |
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Answer» Point Object\xa0is an\xa0object\xa0whose dimensions are ignored or neglected while considering its motion.For example, if we consider the distance from the Earth to the sun, with respect to the distance between them, both the Earth and the sun can be treated as point objects. Thanks sia |
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| 7139. |
Why cell is called structural and functional unit of life |
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Answer» Cell is the structural and functional unit of life because all living organisms are made up of cells . All living organisms are made up of cells so cell is the basic buiding unit of living organisms and all activities performed by living organisms are sum of total activities performed by cell hence, cell is the structural and functional unit of life |
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| 7140. |
10 numericals based on motion |
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| 7141. |
How many joints do our body have? |
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Answer» 360 joints in human body 78 joints in my body |
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| 7142. |
What is meant by phrase change |
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| 7143. |
What will happen salt is applied to raw mango pieces |
| Answer» It can\'t be rotten | |
| 7144. |
What is the full form of SI unit_ standart international unit or system inter national unit |
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Answer» SI unit = systematic international unit? System international unit Standard international unit |
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| 7145. |
Who were cell discovered |
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Answer» Cell was first discovered by robert hooke in the year 1665. First cell Robert hooke in 1665 and first living cell leeuwenhook in 1674 Leevwenhook (1674) discover living cell in pond water Robert hooke discovered the cell for the first time. Robert hook (1665) he observed cell in the cork slice by a primitive microscope(almost dead cells) Robert hooke discovered the cell Robert hooke,rundolf |
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| 7146. |
Difference between displacement and distance?? |
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Answer» Distance-: *it is scaler quantity ( it has only magnitude) *distance travelled refers to the actual length of the indirect path when a body moves from one poimt to another, it is known as distance. Displacement-: * it is vector quantity ( because it has magnitude as well as direction.* displacement refers to shortest intial and the final positions of the body ,with direction ,it is known as displacement. ????? i hope you will like my answer and this will help you to understood the term also The shortest distance measured from the initial to final position of an object is known as the displacement. The actual distance measured from the initial to the final position is called distance The shortest distance cover by an object is called displacement .The longest distance cover by an object is called distance. |
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| 7147. |
Meaning of lipids |
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Answer» Lipids - the fat molecules of chain called the lipids. Lipid are an important component of living cell Lipids are organic compounds that contain hydrocarbons which are the foundation for the structure and function of living cells. Lipids are nonpolar so they are soluble in nonpolar environments thus not being water soluble because water is polar. The Lipids are a heterogeneous group of compounds, including fats, oils, steroids, waxes, and other compounds, which are related more by their physical than by their chemical properties. |
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| 7148. |
Study of animal tissues is known as .........? Study of plant tissues is known as........? |
| Answer» Study of animal tissue is known as HistologyStudy of plant tissue is known as Anatomy . | |
| 7149. |
Full form of DTP |
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Answer» These all answer are wrong so don\'t write these answer ok .write my answer that diphtheria- tetanus -pertussis .This one is science\' s answer Diphtheria - tetanus - pertussis Dichloro Triphopshate Desk-top publishing Full form of DTP |
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| 7150. |
Full form DDTP |
| Answer» Deaf and disabled telecommunications program | |