Sunday, 25 June 2017

CBSE Class 6 - Maths - Playing With Numbers - Worksheet (#cbseNotes)

Playing With Numbers 
(Natural Numbers and Whole Numbers)

CBSE Class 6 - Maths - Playing With Numbers - Worksheet (#cbseNotes)

Worksheet


Fill in the blanks

1. The set of numbers 1, 2, 3, 4... are called n________ numbers or c_________ numbers.


2. The smallest whole number is ________


3. The smallest natural number is ________


4. There is ______ greatest number(s) in the number system. (many/no/one)


Saturday, 24 June 2017

CBSE Class 8 - Science - Coal and Petroleum (Q and A) (#cbseNotes)

Coal and Petroleum
(NCERT Exemplar  Q & A)

CBSE Class 8 - Science - Coal and Petroleum (Q and A) (#cbseNotes)
Petroleum Refinery


Question 1: You are provided with a mixture of petroleum and water. Can you suggest a method to separate the two?

Answer: Decantation


Question 2: What does CNG stand for and why is it considered to be a better fuel then petrol?

Answer: CNG stands for compressed natural gas. It is considered to be a better fuel because it is less polluting.


Question 3: Name the petroleum product used as fuel for stoves, lamps and jet aircrafts.

Answer: Kerosene is used as fuel for stove,lamps and jet aircrafts.


Question 4: Fill in the blanks in the following sentences.

1. Coal is one of the ________ used to cook food.
2. When heated in air, coal burns and produces mainly _________ gas.
3. Coal Tar is a black, thick - with an ________ smell.
4. Petroleum, ______ and _______ are fossil fuels.
5. Forest and coal are _________ natural resources.

Friday, 23 June 2017

CBSE Class 11 / NEET/ PMT - Biology - Ch 7 - Animal Tissues - Part 1 (Very Short Question and Answers) (#cbseNotes)

Animal Tissues (Part-1)

Very Short Q & A 

CBSE Class 11 / NEET/ PMT - Biology - Ch 7 - Animal Tissues - Part 1 (Very Short Question and Answers) (#cbseNotes)

Q1: Define tissue?

Answer: A group of cells similar in structure, function and origin.


Q2: Can cells in a tissue be dissimilar in structure or function?

Answer: Yes the tissue cells can be dissimilar in structure and function but they are always similar in origin.


Q3: Who coined the word 'animal tissue'?

Answer: Bichat

😇 Note:
Marie François Xavier Bichat, a french anatomist. He is also known as father of histology. Unfortunately he died very young at the age of 30.





Thursday, 22 June 2017

CBSE Class 11 Informatics Practices - Syllabus (2017-18) (#cbseNotes)

Informatics Practices Syllabus (2017-18)


CBSE Class 11 Informatics Practices

CBSE Class 11 Informatics Practices - Syllabus (2017-18) (#cbseNotes)

Here presents the prescribed syllabus for Class 11 Informatics Practices for the curriculum 2017-18.


Wednesday, 21 June 2017

CBSE Class 12 - Physics Sample Question Paper (2014-15) (#cbseNotes)

CBSE Class 12 - Physics Sample Question Paper (2014-15) (#cbseNotes)

CBSE Class 12 - Physics Sample Question Paper (2014-15)



Sample Question Paper with Answers and Marking Scheme.

CBSE Class 12 - Computer Science - C++ Practical Class Design Snippet-3 (#cbseNotes)

C++ Practical
Class Design Snippet-3

CBSE Class 12 - Computer Science - C++ Practical Class Design Snippet-3  (#cbseNotes)

Question : Write a Program to define the classes PERSON, GAME and STUDENT & to access the essential data using multiple inheritance?


Answer:

CBSE Class 12 - Business Studies - Chapter 3 - Importance Of Business Environment (#cbseNotes)

Importance Of Business Environment

Class 12 - Business Studies

CBSE Class 12 - Business Studies - Chapter 3 - Importance Of Business Environment (#cbseNotes)

Question: What is the importance of Business Environment?


Answer:

① Identification of opportunities to get first mover advantage:
Understanding of business condition helps an association in recognizing favorable open doors and getting their advantages preceding rivals and ,competitors in this way receiving the rewards of being a pioneer. It helps the business enterprises for meeting the challenges successfully.


② Identification of threats:  
Correct and revised information of business environment causes an organisation to distinguish those dangers which may antagonistically influence its operations. For instance, Bajaj Auto made impressive enhancements in its  bikes when Honda and different MNCs entered the vehicle business.

Tuesday, 20 June 2017

NTSE Science Quiz - 25 (SAT 2016) (#ntseQuiz) (#scienceQuiz) (#cbseNotes)

NTSE Science Quiz - 25

(SAT 2016)

NTSE Science Quiz - 25 (SAT 2016) (#ntseQuiz) (#scienceQuiz) (#cbseNotes)

Q1: Cow has a special stomach as compared to that of lion in order to:

(a) absorb food in better manner
(b) digest cellulose present in the food
(c) assimilate food in a better way
(d) absorb large amount of water

Q2: Pancreas is composed of -

(a) Only exocrine cells
(b) Only endocrine cells
(c) Both exocrine and endocrine
(d) Nephron


Q3: Which one of the following animals is different from others is not having the parried gill pouches ?

(a) Whale
(b) Water snake
(c) Star fish
(d) Sea horse



Q4: Which of the following is a result of biological magnification ?

(a) Top level predators may be most harmed by toxic chemicals in environment
(b) Increase in carbon dioxide
(c) The green-house effect t will be most significant at the poles
(d) Energy is lost at each tropic level of a food chain


Monday, 19 June 2017

CBSE Class 12 Accountancy - -Syllabus (2017-18) (#cbseNotes)

Accountancy -Syllabus (2017-18)


CBSE Class 12 Accountancy

CBSE Class 12 Accountancy -Syllabus (2017-18) (#cbseNotes)

Here presents the prescribed syllabus for Class 12 Accountancy for the curriculum 2017-18.


CBSE Class 12 - 11 - English - Reading Comprehension (#cbseNotes)

Reading Comprehension
English (Core) Examination Paper 2017

CBSE Class 12 - 11 - English - Reading Comprehension (#cbseNotes)


Read the passage given below and answer the questions that follow :


We sit in the last row, bumped about but free of stares. The bus rolls out of the dull crossroads of the city, and we are soon in open countryside, with fields of sunflowers as far as the eye can see, their heads all facing us. Where there is no water, the land reverts to desert. While still on level ground, we see in the distance the tall range of the Mount Bogda, abrupt like a shining prism laid horizontally on the desert surface. It is over 5,000 metres high, and the peaks are under permanent snow, in powerful contrast to the flat desert all around. Heaven Lake lies part of the way up this range, about 2,000 metres above sea-level, at the foot of one of the higher snow-peaks.


As the bus climbs, the sky, brilliant before, grows overcast. I have brought nothing warm to wear: it is all down at the hotel in Urumqi. Rain begins to fall. The man behind me is eating overpoweringly smelly goats' cheese. The bus window leaks inhospitably but reveals a beautiful view. We have passed quickly from desert through the arable land to pasture, and the ground is now green with grass, the slopes dark with pine. A few cattle drink at a clear stream flowing past moss-covered stones; it is a Constable landscape. The stream changes into a white torrent, and as we climb higher I wish more and more that I had brought with me something warmer than the pair of shorts that have served me so well in the desert. The steam (which, we are told, rises in Heaven Lake) disappears, and we continue our slow ascent. About noon, we arrive at Heaven Lake and look for a place to stay at the foot, which is the resort area. We get a room in a small cottage, and I am happy to note that there are thick quilts on the beds.


Standing outside the cottage we survey our surroundings. Heaven Lake is long, sardine-shaped and fed by snowmelt from a stream at its head. The lake is an intense blue, surrounded on all sides by green mountain walls, dotted with distant sheep. At the head of the lake, beyond the delta of the inflowing stream, is a massive snow-capped peak which dominates the vista; it is part of a series of peaks that culminate, a little out of view, in Mount Bogda itself.

Sunday, 18 June 2017

CBSE Class 11 Accountancy -Syllabus (2017-18) (#cbseNotes)

Accountancy -Syllabus (2017-18)


CBSE Class 11 Accountancy

CBSE Class 12 Accountancy -Syllabus (2017-18) (#cbseNotes)

Here presents the prescribed syllabus for Class 11 Accountancy for the curriculum 2017-18.


CBSE Class 10/9/8 - English - Reading Comprehension (Unseen Poem - 3) (#cbseNotes)

Reading Comprehension (Unseen Poem - 3)

CBSE Class 10/9/8 - English - Reading Comprehension (Unseen Poem - 3) (#cbseNotes)

Question: Read the poem below:

When storm‐clouds rumble in the sky and
June showers come down
The moist east wind comes marching over the heath
to blow its bagpipes amongst the bamboos
The crowds of flowers come out of a sudden
from nobody knows where,
and dance upon the grass in wild glee.

Mother, I really think the flowers go to school underground
They do their lessons with doors shut,
and if they want to come out to play before it is time,
their master makes them stand in a corner.
When the rains come they have their holidays.

Branches clash together in the forest
and the leaves rustle in the wild wind,
the thunder‐clouds clap their giant hands and
the flower children rush out in dresses of
pink, yellow and white.

Do you know, mother, their home is in the sky,
Where the stars are.

Haven’t you seen how eager they are to get there ?
Don’t you know why they
are in such a hurry ?
Of course, I can guess to whom they raise their arms
they have their mother
as I have my own .

Rabindranath Tagore


Saturday, 17 June 2017

CBSE Class 10 - Physics - Electricity - (Holiday Assignment) (#cbseNotes)

Electricity - (Holiday Assignment)

CBSE Class 10 - Physics - Electricity - (Holiday Assignment) (#cbseNotes)


Q1: Two metallic wires A and B of same material are connected in parallel. Wire A has length l and radius r and wire B has length 2l and radius 2r. Compare the ratio of the total resistance of parallel combination and the resistance of wire A.

Answer:
Wire A:
Length = l
Radius = r
Area   = πr²
R₁   = ρ  x l /(πr²)

Wire B:
Length = 2l
Radius = 2r
Area = π(2r)² = 4πr²
R₂   = ρ  x 2l /(4πr²) = ρ  x l /(2πr²)

Let Rₚ = effective resistance of parallel combination
1/Rₚ = 1/R₁ + 1/R₂

1/Rₚ = (πr²)/ρl + (2πr²)/ρl

Rₚ = ρl/(3πr²)

Friday, 16 June 2017

CBSE Class 12 - Accountancy Sample Question Paper (2014-15) (#cbsePapers)

CBSE Class 12 - Accountancy Sample Question Paper (2014-15) (#cbsePapers)

CBSE Class 12 - Accountancy Sample Question Paper (2014-15)





CBSE Class 9 - Physics - Chapter - Force and Laws of Motion (Worksheet) (#cbseNotes)

Force and Laws of Motion
(Worksheet)

CBSE Class 9 - Physics - Chapter - Force and Laws of Motion (Worksheet) (#cbseNotes)


Q: Fill in the blanks with suitable choice given in brackets.

1: The product of mass and velocity of a body is called __________. (momentum/force)


2: The property by the virtue of which an object tends to remain in the state of rest or of uniform motion unless acted upon by some force is called __________. (impulse/ inertia)


3: The SI unit of _________ is kilogram meters per second i.e. kg m/s (momentum/ force)


4: Momentum is a _________ (scalar/ vector) quantity and is directed along the __________ (direction/ magnitude) of velocity.


5: The total momentum of the bullet and the gun before firing would be _________ (zero/ positive / negative) because both of them ar at rest.

Wednesday, 14 June 2017

CBSE Class 12 - Chemistry - Chapter 1 - Solid State - Crystalline vs Amorphous Solids (#cbseNotes)

Crystalline Solids vs Amorphous Solids

Class 12 - Chemistry - Chapter 1 - Solid State

CBSE Class 12 - Chemistry - Chapter 1 - Solid State - Crystalline vs Amorphous Solids (#cbseNotes)

Crystalline Solids Amorphous Solids
1. They have definite and regular geometry due to definite and orderly arrangement of atoms, ions or molecules in three dimensional space. 1. They do not have any pattern of arrangement of atoms, ions or molecules and thus, do not have any definite geometrical shape.
2. They have sharp melting points and change abruptly into liquids. 2. Amorphous solids do not have sharp melting points and do not change abruptly into liquids.

Tuesday, 13 June 2017

CBSE Class 9 - English Grammar - Tenses (Worksheet) (#cbseNotes)

Tenses

Worksheet (Holidays Homework)

CBSE Class 9 - English Grammar - Tenses (Worksheet) (#cbseNotes)


Q Fill in the blanks in the following paragraphs with the most appropriate form of verbs.

1 My mother a)_______(do) a lot of work. She b)______(cook)food and c)________(clean) the house. Whenever I d)______(fallen) I'll, she looks after me well. She e)______(be) a religious person. She f) ______(narrate) many interesting stories from the Ramayana and the Mahabharata to us at bedtime. Right now, she is not at home.


2: I a)________. (run) for a bus when I b) ______ (hit) my foot on something on the pavement and c) _____ ( fall) over. I tried to get up but d)______( move ). I had terrible pain in my left foot. I e)_____( sprain) my ankle very badly. I was limping when some passers-by f)______(notice) me.

CBSE Class 8 - Science - CH4 Metals and Non-Metals (NCERT Exemplar Answers) (#cbseNotes)

Metals and Non-Metals 
NCERT Exemplar Answers
CBSE Class 8 - Science - CH4 Metals and Non-Metals (NCERT Exemplar Answers) (#cbseNotes)

Multiple Choice Questions

Q1: Which of the following is not a metal?

(a) copper
(b) sulphur
(c) aluminium
(d) iron


Q2: The substance that will be flattened on beating with a hammer is

(a) crystal of iodine
(b) lump of sulphur
(c) piece of coal
(d) zinc granule


Saturday, 10 June 2017

CBSE Class 8/9/10 - English Grammar - Sentence Correction - 1 (#cbseNotes) (#EnglishErrorSpotting)

Sentence Correction Worksheet - 1

English Grammar
CBSE Class 8/9/10 - English Grammar - Sentence Correction - 1 (#cbseNotes) (#EnglishErrorSpotting)

Q: Following sentences are incorrect. Spot the error and write the correct sentence.

Sita bought a bread.

What is the cost of this shirt?

I saw beautiful sceneries in painting exhibition.

He is a noted dacoit.

What a luck!

Friday, 9 June 2017

CBSE Class 12 - Computer Science - C++ Practical Class Design Snippet-2 (#cbseNotes)

C++ Practical
Class Design Snippet-2

CBSE Class 12 - Computer Science - C++ Practical Class Design Snippet-2  (#cbseNotes)

Question 2: Write a declaration for a class Person which has the following:
  • data members name, phone
  • set and get functions for every data member
  • a display function
  • a destructor

(i) For the Person class above, write each of the constructors, the assignment operator and the getName member functions. Use member initialization list as often as possible

(ii) Given the Person class above, write the declaration for the class Spouse that inherits from Person and does the following:
  • has an extra data member spouseName
  • redefines the display member function

(iii) For the Spouse class above, write each of the constructors and display member, functions. Use member initialization lists as often as possible.


Answer: