## The Delhi Sultanate

Q1: Who laid the foundation of the Delhi Sultanate?

Answer: Qutub-ud-din Aibak laid the foundation of the Delhi Sultanate.

Q2: Who was the founder of the slave dynasty in India ?

Answer: Qutubuddin Aibak is regarded as the founder of the Slave dynasty.

Q3: Why was Qutubuddin known as Lakhbaksh ?

Answer: Qutubuddin known as Lakhbaksh because of liberal distribution of money, he earned the title of ‘Lakhbaksh’.

Q4: Name any two Inscriptions to reconstruct the age of the Delhi Sultanate.

1. The Pehowa Inscription,
2. Sarban Inscription.

## Convergence of Technologies

Question 1: Define convergence.

Answer: Convergence is a process by which communication networks and their services
are transformed such that:

(1) different network platforms carry a similar range of voice, audiovisual and data transmission services;

(2) different consumer appliances receive a similar range of service; and

(3) new services are being created.

Question 2:  What do you mean by the convergence of technology?

Answer: Convergence of technology is the interaction of two or more different technologies in a single device or system.

Question 3: How to make the convergence technology possible?

Answer: To make the convergence technology possible, high-bandwidth networks, high-speed Internet access, compression of software and hardware that combines one or more technologies and takes advantages of the new methods of connectivity are required.

## Thursday, 30 August 2018

### CBSE Class 12 - Mathematics - Linear Programming (Key Points) (#cbsenotes)(#eduvictors)

Linear Programming

(Key Points)

Linear Programming Problems – Problems which concern with finding the minimum or maximum value of a linear function Z (called objective function) of several variables (say x and y), subject to certain conditions that the variables are non-negative and satisfy a set of linear inequalities (called linear constraints) are known as linear programming problems.

Objective function – A linear function z = ax + by, where a and b are constants, which has to be maximised or minimised according to a set of given conditions, is called a linear objective function.

Decision Variables – In the objective function z = ax + by, the variables x, y are said to be decision variables.

Constraints – The restrictions in the form of inequalities on the variables of a linear programming problem are called constraints. The condition x ≥ 0, y ≥ 0 are known as non – negative restrictions.

## Long Walk to Freedom

Class 10 - English - First Flight

Oral Comprehension Check-1

Q1: Where did the ceremonies take place? Can you name any public buildings in India that are

Answer: The ceremonies took place in the campus of the Union Building of Pretoria. The Parliament House in New Delhi, the Rashtrapati Bhavan in New Delhi, the Supreme Court of India in New Delhi and Madras High Court in Chennai are some examples of Indian public buildings that are made of sandstone.

## Improvement in Food Resources - Agriculture Improvements

Q1: Define crop.

Q2: Name the two major problems for food requirements due to overpopulated country like India?

Q3: Give two examples of scientific management practices to obtain a high yield of crops.
Q4: What are integrated farming practices?

Q5: Give three examples of cereals? Which type of major nutrient do they provide?

Q6: Lentils are rich in ________. Lentils, black gram (urad), green gram (moong) are collectvely called _________.

Q7: Give three examples of oilseeds? Name the major nutrient provided by them.

Q8: What do vegetables, spices and fruits provide?

Q9: What are fodder crops? Give three examples of fodder crops.

Q10: Define photoperiodism. What is its effect on plants?

## Number System

Multiple Choice Questions (MCQs)

Question 1: The product of the place values of two 2’s in 428721 is

(a) 4
(b) 40000
(c) 400000
(d) 40000000

Question 2:  3 × 10000 + 7 x 1000 + 9 x 100 + 0 x 10 + 4 is the same as

(a) 3794
(b) 37940
(c) 37904
(d) 379409

Question 3: If 1 is added to the greatest 7-digit number, it will be equal to

(a) 10 thousand
(b) 1 lakh
(c) 10 lakh
(d) 1 crore

## Computer System Organisation

(Worksheet)

Fill in the blanks

1. __________ is an electronic device that manipulates information or data according to the set of instructions called program.

2. __________ is used for playing video games.

3. A scanner is a device that allows a user to convert an image into a ___________ file.

4. A touchscreen is an electronic ___________ display that can detect the presence and location of a touch within the display area.