Saved Bookmarks
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.
| 49101. |
the path of light ray from air to three media a,b and c for a given angle of incidence is shown. |
| Answer» | |
| 49102. |
Defarent between nervous coordination and Hormon coordination |
| Answer» Nervous coordination is done by nervous system.It\'s unit is neuron.Messages are transmitted in the form of electrical impulses along nerve fibres.Messages are transmitted very quickly and their effect ussually last after a while.Harmonal coordination is done by harmonal system.It\'s unit are the secretary cells.Messages are transmitted in the form of chemicals called harmones through blood stream.Messages are transmitted slowly and their effect usually lasts longer. | |
| 49103. |
Mellifera????????? |
|
Answer» ok!! no !! ...i will not leave this app as long as u will be there?? Change ur name?? OK as ur wish... R u leaving this app.. Many of my frnds already left Why,.. What hppnd?? Not fine!!! What about u?? Fine yet H R U?? No prob Ok sorry honey, i had to go without telling !!! Apis meliferra??? hloo |
|
| 49104. |
To whom called a TRUE FRIEND??? ?? |
|
Answer» My pleasure? Who thinks of your good and bad.Who thinks of you.Who gives you some attention.Whose presence makes you happy and makes your spoiled day beautiful. OK sonika... ☺ The one nearest to ur heart ,whom u can believe and trust ,he or she is there with you not only in good times but bad as well |
|
| 49105. |
Explain *** determine ? |
| Answer» | |
| 49106. |
Write two observations when lead nitrate is heated in a test tibe |
|
Answer» And oxygen is also released Yellow colour of lead oxide and brown fume of nitrogen is produced |
|
| 49107. |
Give an ex of esterification |
|
Answer» CH3COOH + C2H5OH --------> CH3COOC2H5 + H2O I want an ex apart from any book U can see this on pg 73 of NCERT SCIENCE book....? Don\'t know |
|
| 49108. |
Sodium and potassium are kept immersed in kerosene |
|
Answer» Sodium is highly reactive metal. It can catch fire if kept it open.Hence to protect it and to prevent accidental fire ? it is stored under kerosene oil. Highly explosive gases which react with o2 and co2 and catch fire easily. Because they are highly reactive metals Sodium and potassium are kept immersed in kerosene because if it is kept open it can explosively react with oxygen , carbon dioxide and moisture present in the air , they are reactive and catch fire eassily Because they react so vigorously with oxygen that it catches fire when kept in the open. Hence, to protect accidental fires, they are kept in kerosene oil. |
|
| 49109. |
What is genetics? |
|
Answer» Hormones are chemical messengers secreted by endocrine gland directly into blood stream. Hormones are chemical messengers secreted by endocrine glands. What is hormone Thanks Genetics is a branch of science concerned with the study of genes, genetic variation, and hereditary in organisms. The study of heredity and the variation of inherited characteristics...?? |
|
| 49110. |
Which fluid in human body wets internal organs |
|
Answer» Cerebrospinal fluid and mucus are 2 fluids which make internal organ wet. Cerebrospinal fluid ~the fluid which is present inside the brain....?? May be blood |
|
| 49111. |
How to work thermal power plant |
|
Answer» I hop it will helpful to you Thermal plant produce electricity by burning of fossil fuels.ex coal, oil |
|
| 49112. |
What do you mean by cell |
|
Answer» A cell is fundamental unit of life which makes our body structure The smallest structural and functional unit of life is called as cell. Cell is the basic, structural and functional unit of life. The structural and functional unit of a life is known as cell. Cell is the structural and functional unit of life . ???? By SANKET SUNDAR It is the structural and functional unit of life. Cell is the structural and functional unit of life |
|
| 49113. |
Which subject is easy and scoring also...????.... |
|
Answer» According to me sanskrit is the easiest and scoring subject. Maths is also easy and scoring subject.. hindi subject is easy and scoring also Diyu yrr plz na But why i can\'t write ur name??? Honey=deep.....i will call u deep plz Diyu it\'s honey... Don\'t write names plz Okk deep... Yeah diyu Yupp....?sst can also be........ OK diyu... Sst is also a easy and scoring subject English and Hindi |
|
| 49114. |
What does the symbol (s) used with watee indicate |
| Answer» It indicates the water is present in solid state or ice. | |
| 49115. |
WHAT IS formula lactic acid |
| Answer» C3H6O3 | |
| 49116. |
What is the difference between the regeneration and fragmentation |
| Answer» No one has helped me in this question | |
| 49117. |
What do you mean by stock system |
|
Answer» So stock system is a method to represent the metal on the basis of reactivity with the help of Roman numbers. ?? Ans. I am asking to u Plz answer it |
|
| 49118. |
How do endocrine gland do help in maintaining feedback control |
| Answer» Endocrine glands are called ductless glands why | |
| 49119. |
Sbdj |
|
Answer» Means Matlab |
|
| 49120. |
Aadya singh= you written the wrong formula of lactic acid |
| Answer» | |
| 49121. |
What is wavering effects |
| Answer» | |
| 49122. |
What are nastic movements ? |
|
Answer» Growth of Movement does not relate to direction of stimuli is known as nastic movement Movements done by a plant in respond to the stimuli without any growth are known as nastic movements. They are caused due to the change in turgor pressure caused due to the external stimuli |
|
| 49123. |
Which metal which can react with not water and steam |
|
Answer» All the metals which are placed below hydrogen in reactivity series. Because they cannot replace H. Eg- Cu, Pb, Ag,Au etc. Copper Copper doesnot react with hot water and steam thats why it is used to make gysers They are placed below hydrogen in the reactivity series. They are least reactive because they lose electrons less readily(easily) than hydrogen. Why they are unreactive Hm..hello Because they are unreactive / lesss reactive Hi shreya Why they don\'t react with water or steam Lead, copper, silver and gold... |
|
| 49124. |
What is the function of liver kidney and lungs |
| Answer» Lungs are to breath,to oxidise the blood.Kidney is to remove dirt or unwanted particles from blood in the form of urine. Liver is to secret bile juice for digestion of food inside the stomach. | |
| 49125. |
What are functional group and their formulas? |
|
Answer» Atom or group of atom which decides the properties. of the compound in which they are present ◆Halo group: --X ( can be Cl, Br), ◆Alcohol group: --OH ◆ Aldehyde Group: --CHO ◆ Ketone group: --CO-- ◆ Carboxylic Acid group: --COOH ◆ Alkene group: double bonding of carbon ◆ Alkyne Group: triple bonding of carbon An atom or a group of atoms which makes a carbon compound reactive and decides its properties are referred as functional groups. |
|
| 49126. |
Hi besties.. H r u all |
|
Answer» Hmm... Bye go and sleep... I said I want to sleep.... So now bye..... mene jhuth kab bola honey.... plz honey tell me... plz..plz ...plz ...plz bata do Bye Na badlu nhi yrr net is slow I think u slept ???? wo to bas aisehi likh diya tha warna tum usi samay bhag jaati.... To tumne likha tha now I don\'t like her.. It\'s means hate..... nhi hate ku karunga... Sach bolna Now u tell . Do u like someone??? And tell the truth... Don\'t tell the name but tell yes or no..... ONLY AND ONLY TRUTH.... ?? Ooo hmmm Right Nhi Hmm ask ek question puchu??? o acha ... Idhar kidhar ho honey ... I am also fine honey...... Hmmmm Fine and what about u Hlo pushkar hloo honey K batau mae K ha yo Yeah Deepu Srry Frnd * Mne bera sa..... junior Delhi Na bass puchu tha thara sa Okk deep.... Hi ziddi Hloo Hii deep.... Me honey Who r uuu Hey |
|
| 49127. |
A substance which oxidizes itself and reduces other is known as |
|
Answer» Okkk... ?? No prblm.....☺️ No..... Dhruv it is oxidizing agent not reducing Reducing agent A substance which oxidises others but itself undergoes reduction is known as oxidising agent or oxidant..... |
|
| 49128. |
What is formula of 2 chloro-butane |
| Answer» Molecular Formula: C2H9Cl | |
| 49129. |
A wire of 1m long 0.2 mm in diameter and has a resistance of 10 ohm. Calculate the resistivity |
|
Answer» the resistivity of the conductor is 3.14× 10 to the power-7 ohm- m I think 0.3 ohm meter |
|
| 49130. |
What is speciation? Answer in 1 mark |
| Answer» The process of development of new species from the existing one is known as speciation. | |
| 49131. |
Answer my below question ?☺?..Anyone plz |
|
Answer» Question kha pa Hmm... |
|
| 49132. |
What do you mean by\' reflection of light\'? |
| Answer» When a light is incident on a reflecting or a polished surface, than the light reflect back in its previous medium, is known as reflection. There are 2 types of reflection: regular reflection and diffused reflection. | |
| 49133. |
What are the function of male $£× hormone?? |
| Answer» Testosterone is that hormone produces in testis and plays an important role in the body changes of male during the age of puberty. Broadening of shoulders, deepning of voice and growth of beard are some of its functions. | |
| 49134. |
What are the function of both hormones?? |
|
Answer» My pleasure... Thank u so much I hope u clear it now The function of testosterone is The hormone also promotes the development of sexual male characters tics during puberty. Oestrogen is the secondary *** hormone which occurs changes in the female body during puberty. Progestron prepares body for pregnancy and regulates the menstrual cycle. The primary function of estrogen is development of female secondary sexual characteristics. Check it clearly... Some students already answered u |
|
| 49135. |
What is the difference between oestrogen and progesterone?? |
| Answer» Dono ovary main hi h | |
| 49136. |
Name the *** hormones that released from female body?? |
|
Answer» Testron Oestrogen and progesterone |
|
| 49137. |
What type of material present in solar panels?? |
|
Answer» Those metals which have higher electical conductivity are present in solar panels Various types of material present in solar panels :- Polycystalline, Silicon, Copper, Indium, Gallium, Selenium, Cadmium, Lelluride, Gallium arsenic. ? |
|
| 49138. |
Why diamond is a bad conductor of electricity |
|
Answer» Because it is a non metal and it is a allotrope of carbon therefore it do not conduct electricity?? Diamond are bad conductors because they don\'t have free electrons Diamond is made up of carbon and carbon is non matel so diamond is bad conducter of heat Diamond is a form of carbon so carbon is a non-metal and is bad conductor of electricity. |
|
| 49139. |
What is the general formula of ESTERS??? |
|
Answer» Right answer ESTER = RCOOR\'. R may represent hydrogen by default. |
|
| 49140. |
What is the general formula of Ketone group? |
|
Answer» It\'s CnH2n+2 , CnH2n, CnH2n-2........ No u r wrong So, I m correct As we all know that there are three groups with a general formula CnH2n,CnH2n+1,CnH2n-1(alkene,alkane alkyne)???? Hey guys what are you saying CnH2n+1,was th e general formula ofalkane -COO R -CO - R I know the correct answer...... ?☺ KETONE FORMULA is CnH2n+1 - CO - CnH2n+1... sorry...what will be the correct answer.. CnH2nO is the formula of ALDEHYDE GROUP not Ketone grp U r wrong shreya The general molecular formula of ketone group is CnH2nO , here n is the no. of carbon atom in a ketone(3). |
|
| 49141. |
What kind of mirror is used in the headlights of a car ? Why is it used for this purpose?? |
|
Answer» My pleasure deep..? My pleasure... Ask u have any other doubt Ohhh..., Thanx..dono ko...kl se physics kr rahi hu....kuch question nahi aaa rahe tha Concave mirrors because when a object is placed at focus of a concave reflector then it produces a beam of parallel light rays, which helps us to see things at a distance. Bcoz a concave mirror is converging mirror as opposed to a convex mirror which is diverging mirror . In headlights the bulb is kept at the focus But ,why it is used for his purpose... Concave mirror |
|
| 49142. |
Today was my PTM... mere result aa gya half yearly ka... |
|
Answer» Aap Delhi se ho kya. Bhai kal hmra bhi hai yaar ptm.. Ok ji.. Thanks a lot... Koi baat ni deep board me lana 100%..??? Highest 98.3 percent h.... So, not good Gud 96.5 percent Marks kese aye..?? |
|
| 49143. |
What is meaning of solar constant |
| Answer» It is the rate at which energy reaches the earth\'s surface from the sun. Usually taken as 1,388 watts per sq.m. | |
| 49144. |
How to prepare ( science ) for exam ?With in 2 to 3 days. |
| Answer» Revision | |
| 49145. |
What is the angle of incidence |
|
Answer» Incoming rays of light The coming light rays falling on mirror surface at a point, sent back by the mirror perpendicularly, then the angle formed by comming rays and perpendicularly reflected ray is termed as Angle of Incidence. The angle made between the light coming from the source(incidence ray) and normal ray is called angle of incidence. The angle which is made by the incident ray with normal on any surface The angle b/w the normal and the ray of light is called the angle of incidence |
|
| 49146. |
How many types of blood cell |
|
Answer» 2 Rbcs, wbcs and platelets 3 types of blood cells There are 3 types of blood cells: RBCs, WBC, and platelets. There are two types of blood cells:- (1)Red blood cells and (2)White blood cells. |
|
| 49147. |
What do you mean by variable resistance ✌✌✌ |
|
Answer» "Vary" means that can change and "able" means holding potential of something ,and resistance we all know .So in short the resistance whose magnitude can vary. Variable resistance is the rheostat it help us in changing the resistance as required. It help in increse or decrese the electric current in circuit Rheostate |
|
| 49148. |
Give four uses of concave lens. |
| Answer» ◆Used in wide angel spyhole in doors.◆used as eye lens in Galilean telescope.◆used in spectacles to correct myopia.◆used in combination with convex lenses to make high quality lens systems for optical instruments. | |
| 49149. |
Why Sun gets more heated and what energy produces by the sun |
| Answer» | |
| 49150. |
Which are the different types of salts? |
| Answer» | |