Sunday 17 June 2018

CBSE Class 11 - Biology - Understanding Plant Growth (#cbsenotes)(#eduvictors)

Understanding Plant Growth

CBSE Class 11 - Biology - Understanding Plant Growth (#cbsenotes)(#eduvictors)


Q1: Define growth.

Answer: Growth in an organism consists of a permanent and more or less irreversible increase in size, commonly accompanied by an increase in dry mass and amount of cytoplasm.


Q2: Define development.

Answer: The coordination of growth and differentiation of a single cell into multicellular tissues and organs is called development.


Q3: How the growth of living beings is different from non-living?

Answer: Growth in living beings is intrinsic or internal, in contrast to extrinsic growth observed in non-living objects.


Q4: How is plant growth different from animal growth?

Answer: Plant growth is generally indeterminate, i.e., continued throughout life while animal growth is non-continuous i.e. after a certain age, the ageing starts leading to death. In plants, the growth is diffused and localised while animal growth is uniform.


Q5: How plant growth is categorised?

Saturday 16 June 2018

CBSE Class 9 - Geography - India: Size and Location (Very Short Questions and Answers)(#cbsenotes)(#eduvictors)

India: Size and Location 

(Very Short Questions and Answers)
CBSE Class 9 - Geography - India: Size and Location (Very Short Questions and Answers)(#cbsenotes)(#eduvictors)


Q1: Indian Standard Time or I.S.T. is how many hours ahead or behind of G.M.T. or Universal Time?

Answer: 5 hrs.30 min. ahead of G.M.T.



Q2: Which Canal has reduced India’s distance from Europe by 7000 km?

Answer: Suez Canal


Q3: The Standard Meridian of India, 82°30’E passes through which place in UP?

Answer: Mirzapur in Uttar Pradesh


Q4: From Arunachal Pradesh to Gujarat, there is a time lag of.....

Answer: 2 hours


Q5: Approximately what is the latitudinal and longitudinal extent of the mainland of India?

Answer: 30°


Friday 15 June 2018

CBSE Class 12 - Physics - Wave Optics - Important Theory Questions (#cbsenotes)(#eduvictors)

Wave Optics

(Important Theory Questions)

CBSE Class 12 - Physics - Wave Optics - Important Theory Questions (#cbsenotes)(#eduvictors)

Q1. Define wave front. State Huygens principle and verify Snell’s law.

Q2. State Huygens principle and prove the laws of reflection on the basis of wave theory.

Q3. What do you mean by interference of light? Explain in brief the Young’s double slit experiment.

Q4. What are the coherent sources? Write the conditions for the sustained interference pattern. Also draw the intensity v/s path difference curve.


Thursday 14 June 2018

CBSE Class 9 - History - Chapter 3 - Nazism and the Rise of Hitler (Very Short Q and A)(#cbsenotes)(#eduvictors)

 Nazism and the Rise of Hitler 

 (Very Short Q and A)

CBSE Class 9 - History - Chapter 3 - Nazism and the Rise of Hitler (Very Short Q and A)(#cbsenotes)(#eduvictors)


Q1: Why did Helmut’s father kill himself in the spring of 1945?

Answer: He feared revenge by the Allied Powers


Q2: What is referred to as Fascism in History?

Answer: Fascism was first propagated by Benito Mussolini. Under the Fascist system power of the state is vested in one person or a group of persons.


Q3: Why did the Nuremberg Tribunal sentence only 11 Nazis to death for such a massive genocide?

Answer: The Allies did not want to be harsh on defeated Germany as they had been after World War I


Tuesday 12 June 2018

CBSE Class 9 - English Literature - Chapter 2 - The Sound Of Music (Q and A) (#cbsenotes)(#eduvictors)

The Sound Of Music 

(Q and A)
CBSE Class 9 - English Literature - Chapter 2 - The Sound Of Music (Q and A) (#cbsenotes)(#eduvictors)

Answer these questions in a few words or a couple of sentences each.

Q1. How old was Evelyn when she went to the Royal Academy of Music?

Answer: Evelyn was seventeen years old when she went to the Royal Academy of Music in London.


Q2. When was her deafness first noticed? When was it confirmed?

Answer: Her deafness was first noticed by her mother when Evelyn was eight years old. She was once waiting to play the piano. When her name was called, she did not move. That was when her mother realized that Evelyn had not heard anything. Her deafness was confirmed when she was eleven. Her marks had deteriorated and her headmistress had urged her parents to take her to a specialist. It was then discovered that gradual nerve damage had severely impaired her hearing.


CBSE CLASS 11 - ECONOMICS - CHAPTER-7 EMPLOYMENT – GROWTH, INFORMALISATION AND RELATED ISSUES (Q and A)(#cbsenotes)(#eduvictors)

EMPLOYMENT – GROWTH, INFORMALISATION AND RELATED ISSUES 

(Q & A)
CBSE CLASS 11 - ECONOMICS - CHAPTER-7 EMPLOYMENT – GROWTH, INFORMALISATION AND RELATED ISSUES (Q and A)(#cbsenotes)(#eduvictors)

Q1: Who is a worker?

Answer: People work for earning their livelihood. A person who is involved in production activity contributing to the flow of goods and services in the economy is called a worker. In other words, a worker is regarded as an economic agent who contributes to the production of goods and services, thereby, to the GDP during a particular year. A worker renders services to others and receives rewards in the form of wages, salaries or in kind. Hence, we can say that when an individual is engaged in a production activity or self-employed and contributes to the generation of GDP, then, that person is referred to as a worker. For example, a doctor, an engineer working in a factory, etc.


Q2: Are the following workers — a beggar, a thief, a smuggler, a gambler? Why?

Answer: No, a beggar, a thief, a smuggler, a gambler cannot be called as workers. A worker is involved in a production activity that contributes to the GDP of a country. As none of them (a beggar, a thief, a smuggler and a gambler) are involved in any legal economic production activity that contributes to the national income of the country, hence, none of them can be regarded as workers.

CBSE Class 9 - History - SOCIALISM IN EUROPE AND THE RUSSIAN REVOLUTION CONCEPTS THE AGE OF SOCIAL CHANGE (Very Short Q and A) (#cbsenotes) (#eduvictors)


SOCIALISM IN EUROPE AND THE RUSSIAN REVOLUTION CONCEPTS THE AGE OF SOCIAL CHANGE 


(India and The Contemporary World - I)
(Very Short Q and A)

CBSE Class 9 - History - SOCIALISM IN EUROPE AND THE RUSSIAN REVOLUTION CONCEPTS THE AGE OF SOCIAL CHANGE (Very Short Q and A) (#cbsenotes) (#eduvictors)


Q1: The people who wanted to put an immediate end to the existing governments in Europe(in 1815) were called ...

Answer: Revolutionaries


Q2: Who were radicals?

Answer: They wanted a nation which tolerated all religions. They argued for an elected Parliamentary government, subject to laws interpreted by a well-trained judiciary that was Independent of rulers and officials. They were not Democrats.


Q3: By the mid-19th century in Europe, the idea which attracted widespread attention on the restructuring of society was ________.

Answer: Socialism


Q4: Who was the ruler of Russia before October 1917 revolution?

Answer: Tsar Nicholas II.


Q5: Who conspired in Italy to bring about a revolution?

Answer: Giuseppe Mazzini

Monday 11 June 2018

Class 11/10/9/8 - Chemistry - Uses of Gases (Worksheet) (#eduvictors)(#cbsenotes)

Uses of Gases 

(Worksheet)
Class 11/10/9/8 - Chemistry - Uses of Gases (Worksheet) (#eduvictors)(#cbsenotes)

Fill the blanks:

1. The gas that can be used to fill party balloons is _______.

2. The gas that is used to make flash light is _______ .

3. The gas widely used in advertisement signs is _______.

4. The gas present in tungsten bulb is _______.

5. The gas present in the universe is _______.

CBSE Class 8 - Science - Microorganisms - Friends Or Foes (Questions and Answers) (#cbsenotes)(#eduvictors)

Microorganisms – Friends or Foes (Q & A-2)

Class 8 – Science – Microorganisms – Friends or Foes (Worksheet) (#cbseNotes)

Q1: Fill in the blanks:
a. Microorganisms may be unicellular or ___________.

b. __________ bacteria help to make curd from milk.

c. Disease-causing microorganisms are called _______.

d. Ammonium salt in the soil is converted first into nitrites by _________ bacteria.

e. _______ coagulation takes place only when milk is hot.

f. Salting draws out _______ from food.

g. Nitrate in the soil is converted by _________ bacteria into nitrogen gas.

h. The process of preventing food spoilage by chemical or physical methods is called food ________.

Answer:
a. Multicellular
b. Lactobacillus
c. pathogens
d. Nitrifying
e. Casein
f. water
g. denitrifying
h. preservation

CBSE Class 12 - Physics - Ray Optics - Important Theory Questions (#cbsenotes)(#eduvictors)

Ray Optics

(Important Theory Questions)
CBSE Class 12 - Physics - Ray Optics - Important Theory Questions (#cbsenotes)(#eduvictors)


1. Derive mirror formula for a concave mirror and convex mirror.

2. Derive an expression for lateral shift and normal shift. On what factors these depend.

3. Define TIR and write the conditions for TIR. Derive a relation between critical angle and the refractive index of the medium. Also explain the working of isosceles prism and optical fiber.

4. Derive the following relation for a real image formed by a convex refracting surface when the object is placed in rarer medium. Also write the assumptions and sign convention used.

μ₂ / v - μ₁/u = (μ₂ - μ₁) / R