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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.
| 57401. |
Define reflective index |
| Answer» The ratio of sine angle of incident to sine angle of reflaction | |
| 57402. |
Acids conducts electricity why not bases |
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Answer» Because there is no h+ ions Because they have free electron in outer shell |
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| 57403. |
Price of sample papers can be reduced to Rs.20 . |
| Answer» | |
| 57404. |
Difference between bar magnet and eletromagnet |
| Answer» 1)Bar magnet is permanent magnet. 1)Electro magnet is temporary. 2)We can\'t change the polarity of bar magnet. 2)But can change the polarity of electromagnet. 3)Bar magnet strength is fixed. 3)But strength of electromagnet can be increased or decreased. | |
| 57405. |
Preparing a caocl2 from the nacl |
| Answer» No it cant be prepared from nacl . It can be prepsred by passing cl gas through ca (oH)2 solution | |
| 57406. |
Tisse culture |
| Answer» It is an artificial method of producing new plants from cells of pre existing plants. It is afast process than natural process. In this process a few cells of pre existing plant are taken off and placed in favourable conditions with proper nutrition and hormone supply. After few days a group of cells called callus is formed. Then after few days a very small plant is formed. The plant is then taken off from artificial conditions and grown in the soil. | |
| 57407. |
What is tissu culture |
| Answer» Tissue culture is the process of culturing single line cells under sterile, controlled conditions, in vitro by exposing them to nutrients, hormones and specific amount of sunlight. There are different steps involved in the tissue culture process.Step 1: Material is selected and sterilized for propagation of cells, in vitro initiating the process of culturing the cells.Step 2: The plant material is re-divided and placed in separate plates with medium rich in plant growth regulators. These growth regulators induce shoot formation. This process can be repeated till the desired number of plants is obtained.Step 3: The hormones which induce the formation of root are introduced into the medium. Now, complete plantlets are formed. These plantlets are transferred from lab into the green house for further growth. | |
| 57408. |
Science practical file question answer |
| Answer» | |
| 57409. |
why are variation possible in progency of sexual reproductive individual |
| Answer» Sexual reproduction is a process in which the genetic material from two individuals (male and female) combine to form the offspring. Two reasons for the appearance of variation among the progeny formed by sexual reproduction may be as follows:1) The progeny formed by sexual reproduction is the result of the combination of the genetic material from two different individuals. So, the offspring acquires half of the traits from the mother and half from the father. Thus, the combination of various traits results in the variation in the offspring due to which the offspring is different from both the parents.2) Crossing over is the process in which the DNA is exchanged between the homologous chromosomes during meiosis. It occurs during gamete production, and as a result of this the gametes produced by an individual do not have the same genetic material as of the individual. This adds to the variation as the genetic material of an organism is recombined before formation of gametes and the recombined gametes fuse to form the zygote which gives rise to the offspring. So, the offspring will not have exact set of genes from the parents but will have recombined set from each of them. | |
| 57410. |
Also give examples of fission and fusion reaction |
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Answer» Atom and hydrogen Atom and hydrogen ? |
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| 57411. |
Definition of fission and fusion reaction |
| Answer» Fission means breakdown of heavy atom into smaller lighter atoms and fusion means to combine lighter atoms to make an heavy atom | |
| 57412. |
Explain functioning of synapse |
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Answer» Synapse is a gap between two neurons .Messege is passed in form of chemical,through neurotransmitter. Synapse is a part of a nueron.It is also called nerve ending.At synapse a chemical released called nuerotransmitter which help in passing electrical impulse to brain |
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| 57413. |
Which part created sound in human being |
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Answer» Vocal cord Larynx and vocal cord I have doub\'t according to me larynx |
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| 57414. |
Explain the process of fertilisation in plants draw a labelled diagram |
| Answer» \tFertilisation is the process of fusion of male and female gametes.\tFor the fusion of male and female gametes pollen grains have to reach the surface of the stigma. This is called pollination.\tPollen grains received by the stigma, germinate and give rise to pollen tubes. Only one pollen tube finally reaches the embryosac.\tThis tube will have two male nuclei, which migrate to the tip of the pollen tube at the time of fertilization.\tUsually the pollen tube enters the ovule through micropyle and discharges the two male gametes into its embryosac.\tOne male nucleus (gamete) approaches the egg and fuses with it to form a diploid (2n) zygote. This is first fertilisation.\tThe other male nucleus (gamete) reaches the secondary nucleus (2n) and fuses with it to form endosperm nucleus which will be triploid. This is second fertilization in the embryosac.\tThus double fertilisation occurs in embryosac which is unique in flowering plants. | |
| 57415. |
What is full form of rna |
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Answer» ribo nucleic acid Ribo nucleic acid |
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| 57416. |
Do acids conduct electricity |
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Answer» S Yes Yes, electricity conduct electricity Some of the acid produce electrical energy and some are not No Yes acid conduct electricity. |
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| 57417. |
Name the chemical methods to prevent the pregnancy |
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Answer» One medicine that is mala d Using two types of pill 1 vaginal pill |
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| 57418. |
What is condom how it is used properly |
| Answer» It is the strechy tube like which helps in unwanted pregnency. | |
| 57419. |
Name the components of CNS(central nervous system) |
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Answer» Brain and spinal cord Brain and Spinal Cord Brain and spinal cord brain and spinal cord |
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| 57420. |
Current is scalar or vector |
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Answer» Both vector as well as scalar Vector Vector vector quantity |
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| 57421. |
What is thermit |
| Answer» the reaction of iron (III) oxide with aluminium is knwn as thermit reaction. | |
| 57422. |
Give a correct definition of resistivity |
| Answer» When current is passed through the resistor such as a coil it slow down the movement of current as it is not straight and this decrease ia called resistivity of the coil | |
| 57423. |
What is dalton laws |
| Answer» Daltons law states that in a mixture of non reacting gases the total pressure exerted is equal to the sum ofvthe partial pressures of the individual gases. | |
| 57424. |
Who gave second law of refraction of light |
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Answer» Snell Snell descartes. Snell Snell descartes has given the second law of refraction of light . Snell |
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| 57425. |
What is solenoide |
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Answer» Solenoid is a coil made by number of insulated copper wire over a soft ferro magnetic material and connected with a key and battery An insulated copper wire rapped on cylindrical card board its length is greater than its diameter is called solenoid. Solenoid is a endless coil that formed by the wrapping of coil over a soft iron ore |
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| 57426. |
Why is mercury used in thermometer |
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Answer» But how it is used It is a exception of metals which is generally liquid at room temperature that\'s why it is used in themometer |
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| 57427. |
Explain the functioning of domestic electric circuit |
| Answer» | |
| 57428. |
my question is om\'s low is formula is ?please give a answer |
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Answer» OHM\'S law is I=V/R thats means V=IR V=IR , where v is potential difference , I is current and R is resistance of the wire Ohm\'s laws state that electric current flowing in a conductor is directly proportional to the potential difference across the end of conductor if the temperature and other physical condition remain the samemMathematically V=IR V=IR |
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| 57429. |
What is black hole diffusion |
| Answer» | |
| 57430. |
Who give rivet popper hypothesis |
| Answer» | |
| 57431. |
Why plant needed sunlight |
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Answer» Simply to make their own food. It is the process by which autotropic take in substance from the outside and convert them into stored forms of energy is called p photosynthesis. Plants need sunlight to use its photon energy and to break down complex molecules of food into simple formAlso for transpiration Dor Photosynthesis |
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| 57432. |
Kripton |
| Answer» What krypton ? Please complete your question. | |
| 57433. |
What is infertility? |
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Answer» In biology, infertility means unable to reproduce their young one . According to which subject or part |
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| 57434. |
What is pH value and it\'s importance? |
| Answer» pH is used in many parts of our human body. It is used in stomach as follows:-The stomach conists of HCl if the pH of the stomach increses stomach ache starts.It is used in mouth as follows:-If the pH of the teeth decreses tooth decay starts. | |
| 57435. |
Is brain involved in reflex action?Explain how? |
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Answer» Brain is involved in reflex action of the upper body(above neck) while it is not responsible for any other reflex action below the neck. Yes |
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| 57436. |
Strong acid + weak acid= |
| Answer» Strong acid | |
| 57437. |
Why are we not use steel in electromanet |
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Answer» We do not use steel as an electromagnet because when we stop supplying current, it does not loose its magnetic power and will react as a magnet. The core of an electromagnet is made of an iron alloy known as soft iron. This nearly pure iron is preferred because it doesn’t have a remaining magnetization after the current stops, unlike most steels. This material also has higher magnetic permeability which increases the force of the electromagnet. |
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| 57438. |
Reapiration |
| Answer» The release of the energy from food | |
| 57439. |
Describe the brain |
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Answer» Brain is a box like structure which is made up of 8 bones and protected by mennings and it is a centte for all voluntary and involuntary actions Brain is a part of Central Nervous System. It is the main thinking part .It has three parts 1.forebrain 2.midbrain 3.hindbrain.F |
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| 57440. |
anyone plz tell me how much syllabus is completed in ur schools at present in all subjects ,plz |
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Answer» More than half ( optimum) median Less than half syllabus. Almost full book is completed In every subject |
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| 57441. |
What is the electronic configuration of chromium. |
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Answer» Atomic no of chromium is 24 rightElectric cpnfiguration is 2, 8, 8, 6 It is an exception. 4s1 3d5 |
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| 57442. |
What is 1kwh? |
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Answer» 1 kwh is the energy comsumed in 1 hour. Electricity conBy a electric appliance It is the amount of electric energy consume |
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| 57443. |
Last year papers are not available in it |
| Answer» | |
| 57444. |
CH4 + Cl2 = CCl4 + HCl balance chemical equation?? |
| Answer» The balanced form of this equation is: CH4 + 4Cl2 -> CCl4 + 4HCl | |
| 57445. |
why lysome known as suicide bag |
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Answer» Because lysosomes prasent inside the cell and if lysosomes burst then it may burst cell also. Digest* It\'s lysosome..it\'s because it burst when there is any injury in the cell and the enzyme present in it diest the cell itself.. |
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| 57446. |
Difference between fragmentation and regenration |
| Answer» Fragmentation is breaking down into fragments ...which is shown in spirogyra and the broken fragments develooes into new matured individual....Regenaration is cutting down the parts of a single organism and then the each part grows in an new individual it is shown in planaria.. | |
| 57447. |
What do you mean by amphoteric oxides |
| Answer» the oxide which behave both as acidic and basic are called amphoteric oxides. Ex al2o3 | |
| 57448. |
Wich is the most paweefull machine in arduino |
| Answer» ? | |
| 57449. |
What is spincher muscles |
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Answer» Sphincter muscles are those muscles which guard the opening of any part of alimentary canal into the other. Sphincter muscles are those muscles which are under our control. These muscles are present in small intestine,large intestine,**** etc. Sphincter muscle regulates the movement of food from stomach to small intestine. |
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| 57450. |
What is binary fussion |
| Answer» splitting of a unicellular organism into new daughter cells | |