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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.
| 38801. |
In Board exam these ncert solution will come or not |
| Answer» | |
| 38802. |
What is reflex action with the diagram |
| Answer» When we touch a hot bowl (here), the receptors present in our skin send an electrical impulse through neurons; via the sensory neuron it reaches the spinal cord and thus the message is sent to the brain.The brain receives the signal while the reflex is being carried out. When reaching the relay neuron, it is transmitted through the motor neuron back to the effector that is the muscle.The activation of the spinal motor neurons allows for a faster reaction time, hence the muscle moves to take the hand away from the hot object before instructions come back from the brain. This process together is called as reflex arc.Thus we sense the heat and take our hand out of a body. | |
| 38803. |
Define interference and polarisation |
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| 38804. |
What do u mean by allopatric |
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| 38805. |
Difference between phenotype and genotype. |
| Answer» Phenotype means the trait which r visible to u. Genotype means the trait which r present in genes.Foe example. Person havindg blue eye is his phenotype nd its genotype may be \'bb\' | |
| 38806. |
Base |
| Answer» Base | |
| 38807. |
When our ciliary muscles are most contracted? |
| Answer» Whenever we are trying to see... Near things to us... Our ciliary muscles contracts | |
| 38808. |
Why condom is break suddenly |
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| 38809. |
What are the advantage and disadvantage of series and parallel connection respectively |
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| 38810. |
Difference between genes and DNA |
| Answer» DNA is the molecule that is the hereditary material in all living cells. Genes are made of DNA, and so is the genome itself. A gene consists of enough DNA to code for one protein, and a genome is simply the sum total of an organism\'s DNA. | |
| 38811. |
What is the full form of IUCD?? |
| Answer» intrauterine contraceptive device (IUCD) | |
| 38812. |
What is genotype |
| Answer» Genetic appearance | |
| 38813. |
What is gutation |
| Answer» | |
| 38814. |
What is AC and DC current? |
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Answer» AC current change its direction periodically but DC current always flow In one direction Ac is alternate current and DC is direct current |
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| 38815. |
What is AC and DC current |
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| 38816. |
What happens when the hcl dissolved in water |
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Answer» Hydrogen ion will increase It will get dilluted. |
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| 38817. |
What is meant by mutations |
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| 38818. |
Can we find 2c charge |
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| 38819. |
Why the image formed by plane mirror is laterally inverted |
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| 38820. |
Why is water flow? |
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| 38821. |
How the focal length of eye changes? |
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| 38822. |
All Reactions of ethanol |
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| 38823. |
Who discover electron |
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Answer» J.j Thomson JJ thomson |
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| 38824. |
What you mean by +3 |
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Answer» +3 means the image is greater than the object or the image is highly magnified Magnification is positive i.e it is of concave mirror |
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| 38825. |
Define one diometer |
| Answer» 1d means the focal length of the lens is 1m/cm | |
| 38826. |
Nuclear energy |
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Answer» The energy obtained by reacting uranium by the helium atom is termed as nuclear energy Energy obtained by a change in mass of nucleus is called nuclear energy |
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| 38827. |
What is the difference between the regenration and fragmentation |
| Answer» While fragmentation is the process of asexual reproduction where each fragment grows to become an individual organism, regeneration is the process when an organism regrows or regenerates a lost body part. | |
| 38828. |
Why we eat |
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Answer» We eat because we need energy to survive and we get energy from food we eat We eat because our body Requiem some protein and vitamins which the food gives us. |
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| 38829. |
Define interference and polarization |
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| 38830. |
Astak ka sidhant |
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| 38831. |
Why do rainbow always forms opposite to sun |
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| 38832. |
Why some substances burn with flame, whereas some with non-flame? |
| Answer» Some burn with blue flame becoz they have good calorific value and which burns with yellow has low calorific value | |
| 38833. |
Why do we respire |
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| 38834. |
How can we found TT, tt in chapter heredity and evolution |
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| 38835. |
What is aperature ? |
| Answer» Capturing area | |
| 38836. |
A concave mirror is placed in water. Will there be any changes in its focal length? |
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Answer» No change will be there until their will be the case of refraction I am not sure but i think changes takes place. |
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| 38837. |
what do you mean by genetics |
| Answer» The scientific study of heredity , that is , the passing on of characteristics from parents to their offspring. | |
| 38838. |
Which mirror are used in kaleidoscope |
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Answer» Concave Concave |
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| 38839. |
Why concave mirror is also called converging mirror? |
| Answer» Because it converges or focus the image at a point | |
| 38840. |
What is chemistry, biology, physics |
| Answer» PCB | |
| 38841. |
What is renal vein |
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| 38842. |
What are waste product excreted in amoeba |
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| 38843. |
Difference between esterification and saponification |
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Answer» Esterfication reaction: when an organic acid reacts with an alcohol in the presence of acid catalyst, it produces a sweet smelling substance called ester. this reaction is called esterfication reaction, e.g.,CH3 COOH + C2 H5 OH\xa0{tex}\\rightarrow{/tex} CH3 COOC2 H 5 + H2OSaponification: ester reacts in the presence of an acid or a base to give back the alcohol and the carboxylic acid. this reaction is known as saponification because it is used in the preparation of soap.CH3 COOC2 H5{tex}\\rightarrow{/tex} CH3 COOH + C2 H5 OH
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| 38844. |
Why is it that non -metals do not displace hydrogen from dilute acids? |
| Answer» Because non metals are electron acceptor. They cannot supply electron to hydrogen to reduce it to hydrogen gas | |
| 38845. |
How are fats digested in our body ? where does this process take place |
| Answer» Some fat get digested in stomach due to enzyme lipase, complete digestion takes place in small intestine,where lipase covert fat in fatty acid ana glycerol | |
| 38846. |
What is nascent |
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Answer» It means an element of only one atom. Example;O+2O= 3O means ozone layer. So, here single O is nascent Nascent oxygen means most reactive form of oxygen and highly stable Hii priyanshi |
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| 38847. |
What is IUPSC |
| Answer» It is an organisation. International union for pure and applied chemistry. It gives name to compound which are applicable all over the world | |
| 38848. |
Why we write oxygen in form of o2 and its symbol is |
| Answer» Kyunki oxygen kabhi bhi O ki form mai exsist nahi karti wo hamesha O2 ki form mai exsist karti hai | |
| 38849. |
Guys will You prove that 1/f=1/v + 1/u |
| Answer» | |
| 38850. |
What is real image? |
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Answer» Image that can be obtained on screen The images which have positive magnitude is called a real image |
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