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## Class VI-VIII Tuition

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Srikanth 07/02/2015 in  Class VI-VIII Tuition

Knowledge Park replied | 11/02/2015

Option C. Kamaljit Sandhu

Vandana replied | 11/02/2015

C Kamaljit Sandhu

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Pavnesh 06/02/2015 in  Class VI-VIII Tuition

Priyanka replied | 13/02/2015

800 to 1000

Ravi replied | 28/04/2015

300-400 per hour

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Roslin 06/02/2015 in  Class VI-VIII Tuition

Laws of exponents means a power m x a power n equal to a power m + n model formulas

Anitha replied | 08/02/2015

Rule Example
Product rules a n a m = a n+m
23 24 = 23+4 = 128
a n b n = (a b) n 32 42 = (3 4)2 = 144
Quotient rules a n / a m = a n-m 25 / 23 = 25-3 = 4
a n / b n = (a / b) n 43 / 23 = (4/2)3 = 8
Power rules (bn)m = bn m (23)2 = 23 2 = 64
bnm = b(nm) 232 = 2(32)= 512
m?(bn) = b n/m 2?(26) = 26/2 = 8
b1/n = n?b 81/3...  more»
Rule Example
Product rules a n · a m = a n+m
23 · 24 = 23+4 = 128
a n · b n = (a · b) n 32 · 42 = (3·4)2 = 144
Quotient rules a n / a m = a n-m 25 / 23 = 25-3 = 4
a n / b n = (a / b) n 43 / 23 = (4/2)3 = 8
Power rules (bn)m = bn·m (23)2 = 23·2 = 64
bnm = b(nm) 232 = 2(32)= 512
m?(bn) = b n/m 2?(26) = 26/2 = 8
b1/n = n?b 81/3 = 3?8 = 2
Negative exponents b-n = 1 / bn 2-3 = 1/23 = 0.125
Zero rules b0 = 1 50 = 1
0n = 0 , for n>0 05 = 0
One rules b1 = b 51 = 5
1n = 1 15 = 1
Minus one rule «less

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Roslin 06/02/2015 in  Class VI-VIII Tuition

Akash replied | 06/02/2015

i) g=2(ut-s)/t^2
ii) Put the value of t=10, s=10 and u =50 (which is given in the question) in the above formula.
g=2(50*10-10)/10^2 = 4.9
Ans : 4.9

Chandrasekaran replied | 06/02/2015

9.8

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Srikanth 07/02/2015 in  Class VI-VIII Tuition

1. Radiocarbon is produced in the atmosphere as a result of A. collision between fast neutrons and nitrogen nuclei present in the atmosphere B. action of ultraviolet light from the sun on atmospheric oxygen C. action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere D. lightning discharge in atmosphere  more»

Dr. Ashok replied | 07/02/2015

A. collision between fast neutrons and nitrogen nuclei present in the atmosphere

Anitha replied | 08/02/2015

c

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Srikanth 07/02/2015 in  Class VI-VIII Tuition

Ishu replied | 26/03/2015

B

Ravi replied | 28/04/2015

b

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Srikanth 07/02/2015 in  Class VI-VIII Tuition

Anitha replied | 08/02/2015

A

Ishu replied | 26/03/2015

A

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Srikanth 07/02/2015 in  Class VI-VIII Tuition

A

Artheeswari replied | 11/02/2015

A. unequal heating of different part of atmosphere
A.due to unequal heating of different parts of atmosphere

A

Abuzar replied | 15/02/2015

A

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Srikanth 07/02/2015 in  Class VI-VIII Tuition

Planets do not twinkle because A. they emit light of a constant intensity B. their distance from the earth does not change with time C. they are very far away from the earth resulting in decrease in intensity of light D. they are nearer to earth and hence we receive a greater amount of light and, therefore minor variations in the intensity...  more»

Pavitra replied | 22/02/2015

D.

P

Priti replied | 15/04/2015

c

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Srikanth 07/02/2015 in  Class VI-VIII Tuition

A

Abuzar replied | 18/02/2015

A

Shreeragini R K replied | 23/02/2015

They contain free electrons.

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Srikanth 07/02/2015 in  Class VI-VIII Tuition

Venkata replied | 23/03/2015

Stumpy

Venkata replied | 23/03/2015

Stumpy

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Roslin 06/02/2015 in  Class VI-VIII Tuition

Sambhu Nath replied | 10/02/2015

Cursive is a style of writing in which all the letters in a word are connected. It's also known as script or longhand. In this style entire words have to write diagonally without lifting the pencil / pen from the paper.
Straight join hand writing is the style generally we do write.

Neha replied | 02/04/2015

Cursive writing gives better speed if mastered.

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U

Urmi 03/02/2015 in  Class VI-VIII Tuition

A

Talk to the child and motivate him by telling tales of motivation

Roslin replied | 10/02/2015

They can take up skill test on each subject they are weak at. This skill test will certify them whether they can continue to take up the same subject. Or whether they need an optional subject to be taken up. There are special schools like NIOS (The National Institute of Open Schooling); this syllabus will help them take one or two subjects per year. Now CBSE too have these optional...  more»
They can take up skill test on each subject they are weak at. This skill test will certify them whether they can continue to take up the same subject. Or whether they need an optional subject to be taken up. There are special schools like NIOS (The National Institute of Open Schooling); this syllabus will help them take one or two subjects per year. Now CBSE too have these optional subjects in some schools. Please enquire in the school for any optional subject is available. We can reduce the syllabus volume of the subject or give an optional subject which will help the child to show interest and perform well in future. «less

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Syed Saqib 03/02/2015 in  Class VI-VIII Tuition

Only female mosquitoes bite humans and animals; males feed on flower nectar.Female mosquitoes need protein for their eggs, and must take a blood meal in order to reproduce.

Ravi replied | 06/02/2015

Female mosquitos

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Ravi 31/01/2015 in  Class VI-VIII Tuition

J

Jitender replied | 09/02/2015

Speed is a scalar quantity that refers to how fast an object is moving. whereas Velocity is a vector quantity that refers to the rate at which an object changes its position.

Khushbu replied | 11/02/2015

Speed is a scalar quantity and velocity is a vector quantity.

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Ravi 31/01/2015 in  Class VI-VIII Tuition

Ram Mohan replied | 08/02/2015

The full form of 'Sin' and 'Cos' are 'Sine' and 'Cosine' respectively.These words do not carry any meaning on their own, unless each of them is followed by an 'angle'. Ex: Sine'A' OR Sin'A' and Cosine'B' OR Cos'B' which means that Sin'A' Stands for the Sine ratio of angle'A" Which is defined in Trigonometry, as the Ratio of the Opposite side of Angle'A' to the Hypotenuse, of a...  more»
The full form of 'Sin' and 'Cos' are 'Sine' and 'Cosine' respectively.These words do not carry any meaning on their own, unless each of them is followed by an 'angle'. Ex: Sine'A' OR Sin'A' and Cosine'B' OR Cos'B' which means that Sin'A' Stands for the Sine ratio of angle'A" Which is defined in Trigonometry, as the Ratio of the Opposite side of Angle'A' to the Hypotenuse, of a Right angled. Triangle containing this angle'A'. Similarly,Cos'B' is defined as the ratio of the adjacent side of angle'B' to the Hypotenuse of a Right angled Triangle containing this angle 'B'. «less

J

Jayasyamala replied | 14/02/2015

If we take a right triangle ABC with angle B right angle then sine of angle C is the ratio of opposite side by hypotenuse i.e., AB by AC.
And cosine of angle C is adjacent side by hypotenuse i.e., BC by AC.

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Ravi 31/01/2015 in  Class VI-VIII Tuition

Apurba replied | 04/02/2015

In short, Flowers also have male and female parts..

Ravi replied | 06/02/2015

A stigma ( female part ) is the top of the pistil that receives pollen during fertilization. A stamen ( Male part ) is the plant part that distributes pollen and includes the anther and filiment. Stamen is a male part, stigma is female

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Ravi 31/01/2015 in  Class VI-VIII Tuition

Ans: The combining capacity of an atom is called its valency. Actually it can be defined as the number of electrons that an atom may lose (or) gain during a chemical reaction (or) the number of electrons shared.
Ex: In water molecule H?O (H - O -- H)
Valency of Hydrogen is 1 (as it combines with Oxygen atom by one single bond) and valence electrons in Hydrogen ...  more»
Ans: The combining capacity of an atom is called its valency. Actually it can be defined as the number of electrons that an atom may lose (or) gain during a chemical reaction (or) the number of electrons shared.
Ex: In water molecule H?O (H - O – H)
Valency of Hydrogen is ‘ 1 ‘ (as it combines with Oxygen atom by one single bond) and valence electrons in Hydrogen = 1
Valency of Oxygen is ‘2’ (as it combines with two Hydrogen atoms by two bonds), but valence electrons in oxygen = 6
The numbers of electrons in outermost shell (or) valency shell of an atom are called valency electrons.
Based on valency electrons the group number of an atom can be found.
Ex: Number of valence electrons in chlorine are 7 so it belongs to VIIA - group, but its valency is 1.

So, it is to be understood that some times valency is equal to valence electrons, but not all the time. «less

Anjali replied | 02/12/2015

Valency is the number of electrons required to be accepted/lose/shared by the atom of an element in order to complete its outer shell octet. On the other hand valence electrons is the number of electrons present in the outermost shell of the atom of an element.

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Ravi 31/01/2015 in  Class VI-VIII Tuition

S

Metals as well as non metals reacts with oxygen to form respective oxides. When these oxides reacts with water metals form bases and non metals form acids.

S

The basic reaction will be 2Mg+O2 ->2MgO. N+O2->NO2.
MgO+H2O->Mg(OH)2. 3NO2+H2O->2HNO3+NO

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Ravi 31/01/2015 in  Class VI-VIII Tuition

R

Raman replied | 27/03/2015

Direction will be indicated by the sign (positive quantities point in +x direction, while negative quantities point in the ?x direction). Determining which direction is positive and which negative is entirely arbitrary.

Praful replied | 01/04/2015

Opposite direction of object is negative sign otherwise positive ...

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Ravi 31/01/2015 in  Class VI-VIII Tuition

Anitha replied | 04/02/2015

The principle focus or focal point of a mirror is the point at which light that is incident parallel to the
aixs comes together at a point. -

A

Abuzar replied | 18/02/2015

At infinity

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Ashwini 29/01/2015 in  Class VI-VIII Tuition

S

Shanthi replied | 04/12/2015

tomato is botanically fruit

Gyanendra replied | 13 Apr

fruit

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R

Rekha 29/01/2015 in  Class VI-VIII Tuition

Gyanendra replied | 13 Apr

there are 46 22 pairs of autosomes and 1 chromose pair of x and y which decide a boy or girl in the offsprind

hope u got ur answer right

Lakshita Sharma replied | 12 Jun

there are 46 chromosomes in our body in the form of 23 pairs

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P

Padala 23/01/2015 in  Class VI-VIII Tuition

Abhijit replied | 23/11/2015

23 pairs

Priya replied | 06 Mar

23 pairs

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M

Mohammad 24/01/2015 in  Class VI-VIII Tuition

Vishesh replied | 28/01/2015

250

Ravi replied | 28/01/2015

1000-2000

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