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68501.

Q. Calculate the speed of light in given medium and observe its speed, what we conclude from this ?

Answer» The\xa0speed of light in a medium\xa0is v=cn v = c n , where n is its index of refraction. If we divide both sides of\xa0equation\xa0c = fλ by n, we get cn=v=fλn c n = v = f λ n .
68502.

What condition necessary for photosynthesis ?

Answer» # Adequate sunlight # water # Chlorophyll # Carbon dioxide
68503.

Formula diary

Answer» Me too!
I want too!! Of Maths and physics
68504.

A virtual erect and magnified image can be formed by ................... lens

Answer» Convex
Convex lens
Convex lens is correct
Convex lens
Convex lens : when the object is in between O and F1
68505.

What is isomarism?

Answer» The compounds having same molecular formula but different structures is called isomers and these phenomenon is called as isomerism.
The existence, of the molecule have same atom of same no.but different physical and chemical peroperty .
68506.

Why glycerin is called negative catalyst

Answer» Platinum black as a\xa0catalyst\xa0accelerates the combination of hydrogen and oxygen to form water. Similarly, the\xa0catalyst\xa0that decreases the rate of reaction is\xa0known\xa0as\xa0negative catalyst\xa0or inhibitor and the process is\xa0known\xa0as\xa0negative catalysis\xa0or inhibition. ... Here\xa0glycerol\xa0acts as\xa0negative catalyst.
68507.

Which substance is absorbed in large intestine?

Answer» Water
It absorb water and salt
The large intestine is much broader than the small intestine and takes a much straighter path through your belly, or abdomen. The purpose of the large intestine is to absorb\xa0water\xa0and salts from the material that has not been digested as food, and get rid of any waste products left over
68508.

What is generator ? And its Types ?Explain it

Answer» A device which convert chemical energy into electric energyThere is two type of generator A) AC generator B) BC generatori) AC generator:- It is a type of generator which produce alternative current. ii)DC generator:-It a type of generator which produce direct current
68509.

Name the metal which has very low melting point and can melt with heat of your palm?

Answer» Cesium and gallium
Gallium and cesium
Gallium and cesium
Gallium and Mercury (Hg).
Sodium and potassium are the two blahh blahh
68510.

Back cross

Answer» Ohh tumne I\'d change kar de , mai to confuse ho gayi thi??,achaa english ki baat kar rahi ho , koi nahi , agar phir bhi nahi ati to bata dena mai bata dungi easy way mai☺️☺️☺️
Extra class...(◕‿◕)
Good morning, or kis chiz ki baat kar rahi ho , konse help❓❓
Yeah, it\'s really helpful app for English....✌️ Thank you!!??Good Night.....???
68511.

what is speciation . state any two factors which can lead to speciation .

Answer» Is saal nahi aa rha h
Ye concept cut nhi hua h kya
Speciation is an evolutionary process. Factors lead speciation is changing in climatic conditions , drastic repletion in DNA copying and reproductive isolation
68512.

What is BMI

Answer» W/height in cm
Weight in meters??? I heard it for the first time!! Actually I intended to write perameters later but I forgot. Weight in kg and height in metres.
Body mass index , It is calculated by take weight in meters divide the weight by the square of the height.
It is measured by dividing weight by height². If it is below 18.75 that means you are y undernourished and if it is over 25 you are obsessed
Body mass index
68513.

What is lymph and why it is nessary for our body

Answer» Nandaa
The lymphatic system helps maintain fluid balance in the body by collecting excess fluid and particulate matter from tissues and depositing them in the bloodstream. It also helps defend the body against infection by supplying disease-fighting cells called lymphocytes
68514.

reproduction in eukaryotes

Answer» Eukaryotes can reproduce both asexually through mitosis and sexually through meiosis and gamete fusion. In mitosis, one cell divides to produce two genetically identical cells. In meiosis, DNA replication is followed by two rounds of cell division to produce four haploid daughter cells.Organism classification: PlantsLower classifications: Animal
68515.

reproduction in prokaryotes

Answer» Asexual mode of reproduction takes place (binary fission)
68516.

Why do acid not show acid behavior in the absence of water?

Answer» In absense of water acid do not contain hydrogen ion or hydronium ion so acid not show acidic behaviour in absence of water.
Because acids did not dissociate H+ion in absence of water
In the absence of water (sorry galti s acid Wright Kr diya)
Because acids do not dissociate to produce H± ions in the absence of acids
Because acid didn\'t release H+ ions in absence of water
68517.

What do you mean by a chemical Reaction

Answer» Two chemical substance are react to each other and form a new reaction those reaction are called chemical reaction.
A process in which the substance taken (called reactants) lose their nature and identity to form new chemical substance with different properties
Chemical reaction means the reaction in which new substances or product gets formed and that is unrepeatable. This reaction known as chemical reaction
It is a reaction in which new substance is formed and products. Substance formed in chemical reaction is reactant and substance from is called as product.
Hii
68518.

Class 10 Science All important MCQ

Answer»
68519.

Tell me - Why do stars twinkle

Answer» Atomspheric refraction
Star twinkling due to atmospheric refraction
The change in intensity of light coming from the stars is called twinkling of stars. The twinkling of stars occurs due to atmospheric refraction of star\'s light. Hence, the star light reaching our eyes change continuously and stars appear to twinkle.
Stars move from its apparent position and appears to be twinkle
stars twinkle due to scattering of light
68520.

Did dobereiner\'s triads also exist in the columns of newlands octaves? Compare and find out.

Answer» Yes .In dobereiner trade ,lithium, sodium,potassium occure and have similar chemicals property. It also occur in new land of octave property of 8th element sodium is same as the property of 1st element lithium
68521.

Why are minerals essential in photosynthesis?

Answer»
68522.

What is the structure of ethyl n-propyl alcohol and ethyl iso-propyl alcohol..?

Answer» Ethanol, also known as ethyl alcohol and abbreviated as EtOH, is a colorless, volatile, and flammable liquid that is soluble in water. Its chemical formula is C2H6O, or can be written as C2H5OH or CH3CH2OH. It has one methyl (-CH3) group, one methylene (-CH2-) group, and one hydroxyl (-OH) group
68523.

PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ

Answer» Ask specific questions which are clear and concise.
68524.

What happens when crystals of washing soda are exposed to air? Give reaction.

Answer» Washing soda crystals lose their water of crystallization and become amarphus. So the phenomenon is called as efflorescence.
68525.

Draw a picture of substances for acid basis and salts

Answer» The example for acid is HCl that is hydrochloric acid For base we can say that soap is a base because of you taste soap then it tastes bitter so as you know that bases tastes bitter and for salt we can take tata salt
68526.

List in tabular form two diferences between binary fission and multiple fission

Answer» -Binary fission involves production of only 2 daughters cells.-Multiple fission involves production of many daughter cells.-Binary fission involves the division of cytoplasm and nucleus simultaneously.-Multiple fission divides into nuclei and then cell is formed.sorry , no tabular column could be given :)
68527.

Kuch questions puchna tha kya afzal

Answer» Pata nhi yaar
68528.

Name and define si unit of current

Answer» Ampere
SI unit of current is ampereWhen 1 coloumb of charge flows through any cross section of a conductor in 1 second , the electric current flowing through it is said to be 1 ampere
The SI unit of current is Ampere (A). When 1 coulomb of charge flows for 1 sec, then the current flowing through the circuit is said to be 1 ampere.
The\xa0ampere, symbol A, is the SI unit of electric current. It is defined by taking the fixed numerical value of the elementary charge to be 1.602 176
68529.

What is the metals

Answer» Defination=Metals are the elements which form positive ions by losing or sharing .Mallleability heat and electricity conduction are properties of metal
???
Metal are the element that conduct heat and electricity and are malleable and ductile metal are also shiney hard strong havey etc
It\'s a material used for many things and also a good conductor of electricity...Sry is if it not proper or not correct or not enough answer but what I know I have said
68530.

What are synthetic detergents ? Give one example of synthetic. Write its two advantages over soap

Answer»
68531.

Notes of oersted discovery

Answer»
68532.

How does light get refracted by a prism?

Answer» Light change a speed as it moves from one medium to another (for example ,form air into the glass of prism )......this cause light of different colours to be refracted differently and to leave the prism at different angles, creating and effect similar to a rainbow
68533.

What is insufficient of multicellular

Answer» In\xa0multicellular\xa0organisms such as man, the volume of the human body is big and hence, oxygen cannot diffuse into all the cells of the human body quickly. ... Hence, diffusion is\xa0insufficient\xa0to meet the oxygen requirements of\xa0multicellularorganisms like humans.
Diffusion is insufficient of multicellular due to complex organs, such as humans have large volume. It take time to diffuse oxygen allover the body. So diffusion is insufficient
68534.

Uses of convex mirror and uses of concave

Answer» Concave mirror-- 1) used in headlight of vehicles to get a powerful parallel beam of light2) used as shaving mirrors 3) used by dentist to see large image of teeth 4) used in torchesConvex mirror1) rear view mirror as they always form erect and diminish images.Also they have the reflecting surface bulging outwards which give a wider field of view.
concave mirror which is also called a converging mirror has its reflecting surface bulging inwards, i.e. away from the incident light. There are numerous uses of concave mirrors in daily life. It is used in the aircraft landing to guide the airplane, it is used as a torch to reflect the light rays, it is used during shaving to get an erect and enlarged image of the face, etc.
68535.

A gas is released during photosynthesis and state the way by which the gas is evolved

Answer» Oxygen (O2) is the gas released by plants during photosynthesis. It is released through stomatal pores by the process of Transpiration.
Oxygen and it is released by stomatal pores
Co2
68536.

Hep

Answer» ???
68537.

Metal with water 10 questions

Answer»
68538.

Write the chemical equation involved in preparation of sodium hydroxide name the process

Answer» 2NaCl+2H2O--->2NaOH+H2+Cl2This process is Chlor alkali process.
68539.

What is galavnometer

Answer» Galvanometer is a device which is used to detect small current in circuit
Galvanometer is a device which is used to detect the correct present in the coil
Galvanometer is an electromechanical Instrument
It is used to find small electric current
Galvanometer is a device which is used to find small electric current.
68540.

If proton is fixed than how can (+)ve charge move??

Answer» Positive charge doesn\'t move .Electron which have negative charge only move..
68541.

What is the formula of sodium chloride

Answer» NaCl
2Nacl
NaCl
NaCl is the formula for Sodium chloride.
Nacl
68542.

Draw magnetic fields lines through a magnet and writes its properties.

Answer» Please download the app for notes in which you will get your answers of your questions
68543.

What are tropic levels

Answer» Each step or level of the food chain forms a trophic level . The autotrophs or the producers are at the first trophic level . They fix up the solar energy and make it available for heterotrophs or the consumers . The herbivores or the primary consumers come at the second ,small carnivores or the secondary consumers at the third and larger carnivores or the tertiary consumers form the fourth trophic level.
68544.

Ch3-Ch2-Br

Answer» Ethyl bromide or bromo ethyl
Bromo-ethyle IUPAC name.
68545.

What is the chemical formula of baking soda ?

Answer» Sodium hydrogencarbonate.NaHCO3
NaHCO3
NAHCO3
NaHCO3
NaHCO3, Sodium Bicarbonate or Sodium Hydrogen Carbonate ..
68546.

What is meant by acid

Answer» Those substance which give OH minus or H3o plus when it is dissolve in water is called acid.
Acids are those substances which dissolves in water to produce H+ or H3O +ions .
The highly constrated aqueous solution that ph level lower than 7 and sour in taste is called acid
Acids are those chemical substances which have a sour taste
Acid give H+ ion with aqueous solution Acid is sour in tast
68547.

Write the full form of DNA

Answer» Deoxyribo nucleic acid
Dioxyribo nucleic acid
Deoxyribo nucleic acid
Deoxyribo nucleic acid
deoxyribo nucleic acid *may be spelling is wrong*?
68548.

2.Which are called as scavangers?. Single choice.(1 Point)FungiPlasmodiumVirusDiatom

Answer» Scavenger are those who eat remaining flesh of an animal..Ex: wolfHope u like it...♥️
68549.

State and proof joule`s law of heating.

Answer» Joule’s law of heating states that,when a current ‘i \' passes through a conductor of resistance ‘r’ for time ‘t’ then the heat developed in the conductor is equal to the product of the square of the current, the resistance and time.
68550.

Why do multicellular organisms use complex way of reproduction?

Answer» Multicellular organisms cannot reproduce by cell because they are not simple random collection of cells. In them, specialised cells are organized as tissues and tissues are organised into organs, which then have to be kept at different positions in the body. Cell-by-cell division would be impractical. Multicellular organisms, therefore, require to use more complex ways of reproduction. Moreover, simple multicellular organisms possess special type of tissues which have the potential to grow into a new organism but complex multicellular organisms have no such specialised cells.