Sunday, October 22, 2017

CBSE Class 12 - Informatics Practices - Java Object Oriented Programming-2 - Inheritance (#cbseNotes)

Java - InheritanceClass 12 - Informatics Practices

CBSE Class 12 - Informatics Practices - Java Object Oriented Programming-2 - Inheritance (#cbseNotes)


Q1: What do you mean by the term 'inheritance'?

Answer: In OOPs, Inheritance is the process of creating new class (Derived Class or sub-classes) from an existing class (Base Class or Super class). A Sub-class inherits all the properties (data members) and behaviour (method members) of the parent class (Super-class).

The level of Inheritance may be extended i.e. A Sub-class may have their own sub-classes.

In Real-life most of the things exhibit Inheritance relationship.


Q2: What is the importance of 'inheriatnce'?

Answer: Inheritance is important for the following reasons:
Modelling of Real-world
Reusability of codes
Transitive nature of Inheritance

Thursday, October 19, 2017

CBSE Class 10 - Science - SA1 Examination Paper - (2017-18) (#cbsepapers)

CBSE Class 10 - Science - SA1
Examination Paper - (2017-18)

CBSE Class 10 - Science - SA1 Examination Paper - (2017-18) (#cbsepapers)

CBSE Class 7 - Mathematics - Chapter – 12 - Algebraic Expressions - NCERT Solution 12.1 (#NCERTAnswers)

Chapter – 12 - Algebraic Expressions
NCERT Exercise 12.1

CBSE Class 7 - Mathematics - Chapter – 12 - Algebraic Expressions - NCERT Solution 12.1 (#NCERTAnswers)

Question 1: Get the algebraic expressions in the following cases using variables, constants and arithmetic operations:

(i) Subtraction of z from y .
(ii) One-half of the sum of numbers x and y .
(iii) The number z multiplied by itself.
(iv) One-fourth of the product of numbers p and q .
(v) Numbers x and y both squared and added.
(vi) Number 5 added to three times the product of m and n .
(vii) Product of numbers y and z subtracted from 10.
(viii) Sum of numbers a and b subtracted from their product.


Answer:
(i) y - z

(ii)
(x+y)
-----
 2

(iii)  z²

(iv)  pq
     ----
       4

(v)   x² + y²

(vi) 3mn + 5

(vii) 10 - yz

(viii) ab - ( a + b )


Sunday, October 15, 2017

CBSE Class 12 - Business Studies - Ch4 Directing (Practice Test) (#cbseNotes)

PRACTICE TEST
SUBJECT: DIRECTING
(BUSINESS STUDIES)

CBSE Class 12 - Business Studies - Ch4 Directing (Practice Test) (#cbseNotes)

Max. Time : 50 min. M.M. 25

1. Supervision needs effective communication in the organisation. Comment. 1

2. How does communication help in increasing managerial efficiency? 1

3. What is Laissez-faire leadership style? 1

4. "Resistance from people to introduce changes in the organisation can be removed through motivation". Explain.
1

Friday, October 13, 2017

CBSE Class 12 - Physics - Chapter 9 - Electronics Devices - Revision Sheet (#cbseNotes)

CHAPTER 9 - ELECTRONIC DEVICES - REVISION ASSIGNMENT 

CBSE Class 12 - Physics - Chapter 9 - Electronics Devices - Revision Sheet (#cbseNotes)


1 MARK QUESTIONS

1.  In a semiconductor which of the following carries can contribute to the current?
(a) Electrons
(b) Holes
(c) Both
(d) None

2. A semiconductor diode has ______
(a) One PN junction
(b) Two PN junctions
(c) Three PN junctions
(d) Four PN junctions

3. If the arrow of diode symbol is positive with respect to bar, then the diode is ______ biased

4.  The DC resistance of a diode is _______ its AC resistance.

5. If the temperature of the diode increases,then leakage current ________.

CBSE Class 9 - Maths - Chapter 10 - Circles - Important Terms You Should Know (#cbseNotes)

Chapter 10 - Circles - Important Terms You Should Know

CBSE Class 9 - Maths - Chapter 10 - Circles - Important Terms You Should Know (#cbseNotes)

1. A circle is a collection (set) of all those points in a plane, each one of which is at a constant distance from a fixed point in the plane.


2. The fixed point is called the centre and the constant distance is called the radius of the circle.

3. All the points lying inside a circle are called its interior points and all those points which lie outside the circle are called its exterior points.

4. The collection (set) of all interior points of a circle is called the interior of the circle while the collection of all exterior points of a circle is called the exterior of the circle.

5. A line segment joining two points on a circle is called the chord of the circle.

CBSE Class 10 - French - Translation Exercise -1 (#cbseNotes)

CBSE Class 10 - French -
Translation Exercise -1

CBSE Class 10 - French - Translation Exercise -1  (#cbseNotes)


Q: Traduire les phrases anglaises suivantes en français.
   Translate the following English sentences into French


1. It does not fit me.

2. Is it on sale?

3. How are you?

4. I am fine, thank you.

5. I would like a quiet room.

Thursday, October 12, 2017

English Vocabulary: 30 Commonly Used Phrasal Verbs You Must Know (#cbseNotes) (#EnglishVocabulary)

30 Commonly Used Phrasal Verbs
You Must Know

English Vocabulary: 30 Commonly Used Phrasal Verbs You Must Know (#cbseNotes) (#EnglishVocabulary)

A phrasal verb is a group of words that functions as a verb and is made up of a verb plus a preposition, an adverb, or both. Phrasal verbs are very common in English usage. Therefore it is important to learn about these verbs. Moreover, the meaning of a verb often changes significantly when it is used in a phrasal verb.


1. bring about : cause

2. bring up : rear children

3. call back : return a telephone call

4. call off : cancel

5. catch up : reach the same position or level

6. check in : register at a hotel

CBSE Class 12/ 11 - Informatics Practices - Java Practical Snippet-1 - Leap Year Testing (#cbseNotes)

Java Practical Snippet-1
Leap Year Testing  

CBSE Class 12/ 11 - Informatics Practices - Java Practical Snippet-1 - Leap Year Testing (#cbseNotes)


QuestionInput a year and check if the year is leap year or not.


Answer:


CBSE Class 11 - Physics - CHAPTER – 1 PHYSICAL WORLD (Q and A) (#cbseNotes)

Class 11 - Physics - CHAPTER – 1
PHYSICAL WORLD (Q and A) 

CBSE Class 11 - Physics - CHAPTER – 1 PHYSICAL WORLD (Q and A) (#cbseNotes)


Q1: Who gave general theory of relativity?

Answer: Albert Einstein gave the general theory of relativity.


Q2: Is gravitational force is universal?

Answer: Yes, gravitational force is universal.


Q3: How a strong nuclear force is stronger comparing to electromagnetic force?

Answer: A strong nuclear force is 100 times stronger than the electromangnetic force in strength.