Anne Frank was in the habit of talking in the class. Mr Keesing was her Maths teacher. He was annoyed with Anne as she talked much in the class. He gave her several warnings but it had no effect. One day, he punished her by giving her extra homework. He asked her to write an essay on the subject "A Chatterbox'. Anne wrote the essay, giving very amusing arguments in it. Mr Keesing liked the essay. But Anne again talked in the class. So he gave the task of writing another essay. This time, the subject was, An Incorrigible Chatterbox.' After that. for two lessons, Anne did not get any punishment. But during the third lesson. Mr Keesing saw Anne talking again He was very annoyed. He asked her to write another essay. The subject of this essay was, "Quack. Quack. Quack. Said Mistress Chatterbox." The whole class laughed. Mr Keesing was trying to play a joke on Anne. But she wrote the essay in an amusing way. Mr Keesing liked the essay and did not punish Anne after that.  

All substances are made up of atoms, which have charged particles called electrons and protons. These charged particles have a negative and a positive charge respectively. Electricity in all forms is a result of this charge on the fundamental particles. Conduction of electricity is the movement of the charged particles in an organized manner resulting in a net movement of charge through the material. When charged particles move in an orderly fashion, we get an electric current.

Without trees, formerly forested areas would become drier and more prone to extreme droughts. When rain did come, flooding would be disastrous. Massive erosion would impact oceans, smothering coral reefs and other marine habitats.

The benefits of being a member country of the WTO is limited for developing countries like India, because :
(i) Major volume of international trade occurs between the developed countries. Thus, the benefit to developing nations is limited.
(ii) The developing economies are forced to open up their markets for the developed countries but are not allowed access to the markets of the developed countries.

Gandhiji launched the Non-cooperation movement of 1921 because: 
According to Gandhiji , the British rule was established in India with the cooperation of Indians, and had survived only because of this cooperation. So time has arrived o withdraw cooperation to the British. 
First World War added to the misery of the Indian people. Heavy taxes, high prices, famines and epidemics made people's life miserable. 
Rowlatt Act invited large scale protests throughout the country. 
Jallianwala Bagh Massacre and the injustice done to Punjab made Indians angry which need to be avenged.
To restore the status of the ruler of Turkey. 
To bring Swaraj or Self Rule to India. 
Mahatma Gandhi declared that the main objectives of the non cooperation movement were : 
To cripple the British administration and make them realize that they cannot function without the actual support of the Indians. 
To avenge the wrong done by the Government in Punjab (Jallianwala Bagh Massacre) in a non violent way. 
To bring about unity among the people. To inculcate a sense of nationalism. 
To promote khadi and to attain Swaraj.

Disguised unemployment is a kind of unemployment in which there are people who are visibly employed but are actually unemployed. This situation is also known as 'hidden unemployment'. In such a situation more people are engaged in a work than required. For example:
1. In rural areas, this type of unemployment is generally found in agricultural sector like - in a family of 9 people all are engaged in the same agricultural plot. But if 4 people are withdrawn from it there will be no reduction in output. So, these 4 people are actually facing disguised unemployment.
2. In urban areas, this type of unemployment can be seen mostly in service sectors such as in a family all members are engaged in one petty shop or a small business which can be managed by less number of persons.

The situation of underemployment is referred to the situation when people are apparently working but all of them are made to work less than their potential is called disguised unemployment. In this case, the person considers himself employed but is actually not working.

Example

(i) In rural areas, where agriculture is the main source of income, this kind of unemployment can be seen often. If a piece of land requires only three people to work on it and instead five people are working on it, then the two extra people are said to be in a situation of disguised unemployment.

(i) In cities and urban areas, disguised unemployment is seen when painters, plumbers, electricians are unable to find work on a daily basis and work way less than their potential.

Due to following reasons the demand deposits are considered as money
(i) Demand deposits can be withdrawn from the bank whenever it is required.
(ii) They are widely accepted as a means of payment, along with the currency, thus they aqre considered as money.
(iii) They are accepted widely as means of payment by way of a cheque instead of cash.

Let a be an arbitrary positive integer. Then, by Euclid’s division algorithm, corresponding to the positive integers ‘a’ and 6, there exist non-negative integers and r such that a = 6 q + r, where, 0 < r < 6

Hence, the cube of a positive integer of the form 6q + r,q is an integer and r = 0,1,2, 3, 4,5 is also of the forms 6m, 6m + 1, 6m + 2, 6m + 3,6m + 4 and 6m + 5 i.e.,6m + r.

A N S W E R

Given two numbers are 101 and 151

101, 151 doesn't any common prime

So, LCM is 101 × 151=15 , 251 

HCL of 101 & 151 is 1.

Disguised unemployment

The situation of underemployment or disguised unemployment is a situation where people are apparently working but all of them are made to work less than their potential is called disguised unemployment. In this situation, the person considers himself employed but is actually not working and utilising his skills in the job.

Disguised unemployment in rural areas

In rural areas, we know that agriculture is the main source of income, this kind of unemployment situation is quite common here. For instance, a piece of land requires only three people to work on it and rather, five people are working on it, then the two extra people are said to be in a situation of disguised unemployment. Not in the field of agriculture we can also see this in small scale industries set up in a village. The labours in these small scale industries are in short of work as more employees are appointed and others face the situation of disguised unemployment.

Disguised unemployment in Urban areas

In urban areas, disguised unemployment is very often. For instance painters, plumbers, electricians are unable to find work on a daily basis and work way less than their potential. A person who has the energy to work in a huge firm but he cannot showcase his skills and perform better as there are many workers and work is distributed among all so he feels that there is nothing much to do.

When an acid is treated with a metal oxide, a salt and water are obtained.
The general reaction can be written as follows:

Acid + Metal oxide → Salt + Water
 
For example, when a small amount of copper oxide is added to sulphuric acid,  colour of the solution becomes blue and the copper oxide dissolves. The blue colour of the solution indicates the formation of copper (II) sulphate.

The reaction taking place can be written as follows:
CuO(s) +  H₂SO₄(aq) → CuSO₄(aq) + H₂O(l)

The textile industry second largest after agriculture in India because:

(i) Cotton textile industry contributes 14 percent of the total industrial production.
(ii) It provides employment to 35 million persons directly – the second largest after agriculture.
(iii) It earns foreign exchange of about 24.6 percent (4 percent of GDP).

Sugar industry is a seasonal industry because of the seasonality of raw material. Sugarcane is harvested in a particular season only. Sugar mills are operative for a part of the year only during the crushing season.

Take that number a and b so
a = 60
b = ?
LCM = 240
HCF = 12

according to mathematics law

LCM × HCF = a × b

LCM × HCF/a = b

240 × 12 /60 = b

48 = b

so the onother number is = b = 48

Amanda dwelt in a huge world of imagination to dodge her mother’s nagging because it was getting too much for small girl like her. Every time she gets an instruction, she would just imagine for a freedom.

When she was scolded for chewing ip her nails, Amanda would long to become a mermaid and drift swiftly in a languid sea. She whished if she were an orphan roaming and making pattern bare feet in the street when her mother would ask her to tidy up her room and do the homework. She faces a rage for eating chocolates and she fascinate herself to be the Rapunzel living in a tall tower in her complete lonliness. All day long her mother fret over her casualness and ignorant behaviour. Opposite to this parents should deal their children delicately and allow them to imagine. After all imaginations only have led us to moon and where not. Amanda was positive girl but was confined.

Cyber law

Cyber Law is a generic term referring to all the legal and regulatory aspects of the internet. Everything concerned with or related to or emanating from any legal aspects or concerning any activities of the citizens in the cyberspace comes within the ambit of cyber laws.

Dr. Griffin is the main protagonist, also known as The Invisible Man, who appears as the title character in H. G. Wells' 1897 science fictionnovella The Invisible Man. In the original novel, Griffin is a scientist whose research in optics and experiments into changing the human body's refractive index to that of air results in his becoming invisible. The character has become iconic, particularly in horror fiction, and versions and variations have appeared throughout various media.

जब एक श्वेत प्रकाश किरण (सूर्य का प्रकाश) एक काँच के प्रिज्म (सघन माध्यम) में प्रवेश करता है। यह बाहर आता है एवं सात रंगों में विभक्त हो जाता है।
यह घटना, जिसके कारण एक श्वेत प्रकाश के विभिन्न घटक अलग-अलग हो जाते हैं। विक्षेपण कहलाता है।
स्पष्टीकरण : यह श्वेत प्रकाश के विभिन्न घटकों के विभिन्न अपवर्तनांकों के कारण होता है।
श्वेत प्रकाश सात रंग रखती है, जिनका नाम, बैंगनी, गहरा नीला, नीला, हरा, पीला, नारंगी और लाल (जिन्हें शब्द VIBGYOR से याद रखा जाता है) हवा में (मुख्यत: निर्वात में) सभी रंगों की प्रकाश तरंगें समान वेग रखती है (3 × 10⁸ m/s).
लेकिन एक सघन माध्यम में, उनके वेग कम होते है एवं अलग-अलग होते हैं। लाल प्रकाश की तरंगें लम्बार्इ में सबसे लम्बी होती है, सबसे तेज चलती है और सबसे अधिक वेग रखती है। बैंगनी प्रकाश की तरंगें, लम्बार्इ में सबसे छोटी, सबसे धीरे चलती है और सघन माध्यम में सबसे कम वेग रखती है।
एक तरंग के लिए एक माध्यम का अपवर्तनांक (µ) निम्न सम्बन्ध द्वारा दिया जाता है।

चूंकि बैंगनी रंग की प्रकाश तरंग के लिए µ सर्वाधिक होता है, इसलिए यह सबसे अधिक मुड़ती है।

जब यह विक्षेपित श्वेत प्रकाश को श्वेत पर्दे पर गिरने दिया जाता है, हम एक सात रंगों का प्रकाश या पट्टी प्राप्त करते हैं। यह रंगीन पट्टी स्पेक्ट्रम कहलाती है।

Let us assume that √5 is a rational number.

Sp it t can be expressed in the form p/q where p,q are co-prime integers and q≠0
⇒√5=p/q

On squaring both the sides we get,
⇒5=p²/q²
⇒5q²=p² —————–(i)

p²/5= q²

So 5 divides p
p is a multiple of 5
⇒p=5m
⇒p²=25m² ————-(ii)
From equations (i) and (ii), we get,
5q²=25m²
⇒q²=5m²
⇒q² is a multiple of 5
⇒q is a multiple of 5
Hence, p,q have a common factor 5. This contradicts our assumption that they are co-primes. Therefore, p/q is not a rational number

√5 is an irrational number