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37351.

What do you mean by reflex arc

Answer» The pathway or route taken by nerve impulses in a reflex action is called the reflex arc
37352.

What is the magnification produced by plane mirror

Answer» M=+1 because m =height of image ÷height of object so in plane mirror h\'=h therefore m=+ as image is virtual and erect
There is no any magnification in plane mirror because in plane mirror the image formed is equal size of the object
+1
37353.

Alcohol is acid or base

Answer» Neither Base nor acid
37354.

Which isotope is responsible for reduction of blood clotting

Answer»
37355.

On.

Answer»
37356.

What is ciliary muscle

Answer» It helps in regulating the size of pupil..
37357.

Metal degale in water to fone

Answer»
37358.

Experiment

Answer»
37359.

Why convex lens is used in eyes

Answer» Because convex lens is converging lens it converge light
Hypermetropia problem
37360.

mid term cource

Answer»
37361.

What is osmiregulation

Answer» The maintenance of constant osmotic pressure by the fluids of an organism by the control of water and salts concentration.
37362.

What is the function of nephron (3 m ques)

Answer» Nephron is the functional unit of excretory system.The nephron is made up of two parts......1- Bowman\'s Capsule....2- Tubule........The Bowman\'s capsule collecting a no. Of blood capillaries called glomerulus...which works for the purification of Blood and the tubule is connected to the urine collecting duct..
37363.

Which plant hormone help in the ripening of fruit ????....

Answer» Ethylene
Ethylene
Ethylene.
37364.

Why does th sky is red at the time of sunrise and sunset

Answer» Because red and orange disperse more due to short wavelengths. And due to atmospheric refraction.
In the early morning and evening, the sun is situated near the horizon. Light from the sun passes through thicker layers of air and covers a larger distance in the earth\'s atmosphere before reaching our eyes. While passing through atmosphere blue light is mostly scattered away and the sun appear reddish.
37365.

How many R,s

Answer» Three type. Reuse,recycle and reduce
There are three types of R,S. 1. Reuse 2. Reduce 3. Recycle
37366.

What happens to the sun with the help of scattering of light during noon

Answer» It appears us white due to equal scattering of white light
37367.

Full forms of HIV, AIDs , OTEC, VNDP, CFC, DNA, ATP

Answer» The United Nations Development Programme (UNDP)
Human immunodeficiency virus,acquired immune deficiency syndrome,Ocean thermal energy conversion, Chloe fluorocarbon, deoxyribo nucleic acid, adenosine triphosphate,
HIV = Human Immuno Deficiency Virus.......AIDS = Acquired Immuno Deficiency Syndrome.......CFC = Chloro Fluro Carbons.......DNA= Deoxy Ribo Nucleic Acid......ATP = Adinosine Tri Phospate......OTEC = ???????VNDP = ???????
37368.

Diaptor

Answer» SI Unit of power is dioptre
SI unit of power of lens
Diopter is the SI unit of power
37369.

An old man cannot see objects clearly closer than 1m from eye this is due to which defect

Answer» Presbyopia
Presbyopia
Myopia
37370.

What would be the consequences of a deficiency of hemoglobin in our body

Answer» Haemoglobin is also called respiratory pigment.Haemoglobin is present in RBC.Its main function is to carry oxygen.it carries oxygen lungs to all the body tissues.And also carries carbon dio xide from body tissue to lungs.So deficiency of Haemoglobin will lead to defeciency of oxygen in blood.And this will lead to the disease anaemia.
The haemoglobin provide oxygen to the blood if it\'s leads to deficiency our blood will not get supply amd thus the person leads to the disease called anemia.
37371.

What is eye

Answer» It is eye
It is a spherical and the most vital organ of our body which helps us to see the most beautiful world.
37372.

Fate of zygote after fertilization

Answer»
37373.

What are heterogamtic

Answer» Heterogamete means different gamete
IT refers to the *** of the species in which the *** chromosomes are not same ex. In human males (X &Y chromosomes are available....
37374.

how is mercury exatracted from cinrbar

Answer»
37375.

What is bonding

Answer» Bonding is the joining of electrons to other
37376.

who is the ancester of human being

Answer» Humans - RamapithicusChimpanzees - Ostrallopithicus
37377.

What is divergent evolution?

Answer» Thxxx
37378.

What does haploid means

Answer» Having a single set of unpaired chromosome
37379.

How can we fully transform from conventional source to non. Conventional sources of energy??

Answer» By using solar power wind energy hydro power etc
37380.

What is physical change

Answer» Temporary change
Ufffu tanmay
The change in physical is physical change
37381.

Explain electirc generator

Answer»
37382.

Sir/mam pls give me chapter wise weightage

Answer»
37383.

Alien ?

Answer»
37384.

What is oxidative refining of metals

Answer» Roasting or calcination
37385.

What is law of attraction?

Answer» According to the law, opposite charges or unlike charges attract each other. Similar charges or like charges repel each other.
37386.

What is magnetic flux and induced emf

Answer» Induced emf is also known as electromagnetic induction or emf induction. If the magnetic flux is changed through a coil, a voltage is produced, and the voltage is known as emf induction.
Magnetic flux is the no. of magnetic field lines passing through a surface.
37387.

Formula of botanic acid

Answer» Butanoic acid= C3H7COOH
37388.

What happens if a convex lens is half covered horizontally.?

Answer»
37389.

Why ammeter is connected in series?

Answer» Becoz it has very low resistance so that it doesnt change the value of the current flowing in the circuit.
37390.

Why is hydrogen peroxide kept in coloured bottle ?

Answer»
37391.

Which book is best for studying science?

Answer» S.chand
All in One
S.Chand
S.chand
S.Chand
37392.

What is presbyopia\'s eye ray diagram

Answer» There is no eye ray diagrams because it is the mix disease of myopia and hypermetropia
37393.

On which factor does the colour of the scattered light depends upon?

Answer» Refraction of light
37394.

Explain why vinegar is a week acid while HCl acid is strong acid ,?

Answer» Because vinegar contain only 5%-8% acid bul hcl is a acid
Because hcl produce more no. Of hydrogen as compare to vinegar
37395.

Can any one know the law of refracetion if u know please help ..........me

Answer» Sin i/sin r = constant.......And normal incident ray and refracted ray lie on the same plane......??
Thanks
1. Angle r is equal to angle I2. Reflected ray, normal ray and incident ray, all lie in the same plane.
37396.

What will happen if both the andrenal glands are removed from a human body?

Answer» The function of adrenaline hormone is to balance the blood pressure , heart rate , breathing rate if these glands are removed the.person will die becoz of high BP and heart rate..
37397.

How to learn carbon chapter

Answer» Sorry thoroughly
Read from ncert book through..
It\'s very easy but do hard work
37398.

what is an enviroment

Answer» Our surrounding which contains biotic and abiotic organisms
37399.

Chemical reaction of zinc

Answer»
37400.

Benzene ka Strctr kya h

Answer»