Blog provides NCERT solutions, CBSE, NTSE, Olympiad study material, model test papers, important Questions and Answers asked in CBSE examinations. References to Educational Sites and resources.
Wednesday, 15 February 2017
CBSE Class 9- Maths - Surface Areas and Volumes - NCERT EXERCISE 13.8 (#ncertsolutions) (#cbsenotes)
Surface Areas and Volumes - Spheres
Class 9 - Maths - NCERT EXERCISE 13.8
Q1: Find the volume of a sphere whose radius is
(i) 7 cm
(ii) 0.63 m
Answer:
(i) Given, r = 7 cm
Volume of sphere = (4/3)πr³
= (4/3) × (22/7) × (7)³
= 1437⅓ cm³
(ii) Given, r = 0.63 m
Volume of sphere = (4/3)πr³
= (4/3) × (22/7) × (0.63)³
= 1.05 m³ (approx)

Tuesday, 14 February 2017
CBSE Class 7 - Geography - Human Environment Interaction - Tropical and Sub-Tropical Region (Assignment) (#cbsenotes)
Human Environment Interaction -
Tropical and Sub-Tropical Region
Class 7 - Geography - Assignment
![]() |
Amazon Basin image credits: wikpedia |
Q1: Define the following terms:
(a) Tributaries
(b) River Mouth
(c) Equatorial Region
(d) Population Density
(e) Cash crops
Q2: Name the countries of the Amazon basin through which equator passes?
Q3: What is the main occupation of the people of the Amazon rain forest?
Q4: Name two types of houses in which Amazon families live.

Sunday, 12 February 2017
CBSE Class 12 - Chemistry - Chemistry in Everyday Life (Very Short Q and A) (#cbsenotes)
Chemistry in Everyday Life
Very Short Q and A based on NCERT Class 12 Chemistry text book.
Q1: Define the term chemotherapy?
Answer: Treatment of diseases using chemicals for therapeutic effect is called chemotherapy.
Q2: What are competitive inhibitors?
Answer: Drug complete with natural substrate for their attachments on the active sites of enzymes .They are called competitive inhibitors.
Q3: Why do we require artificial sweetening agents?
Answer: To reduce calorie intake.
Q4: What are antagonists drugs?
Answer: The drugs that bind to the receptor site and inhibit its natural function.

Saturday, 11 February 2017
CBSE Class 10 - Economics - Consumer Rights (Short Q and A) (#cbseclass10)(#cbsenotes)
Consumer Rights
Class 10 - Economics
Q1: What are the different ways of exploitation of consumers in the market?
Answer:
① Higher price
② Quality lapse
③ Underweight & under measurement
Q2: Define consumer.
Answer: Consumer is a person who buys and uses a good or service from the market after making a payment.
Q3: What is CORPA?
Answer: is CORPA is the consumer Protection Act enacted by the government of India on 24th December 1986.

Friday, 10 February 2017
National Eligibility Cum Entrance Test NEET(UG) — 2017
National Eligibility Cum Entrance Test
NEET(UG) — 2017
National Eligibility Cum Entrance Test (UG) — 2017 will be conducted by the Central Board of Secondary Education (CBSE), for admission to MBBS/BDS Courses in India in various Medical/Dental Colleges.
Admissions to all seats of MBBS/BDS courses are classified in the following categories:
- All India Quota Seats
- State Government Quota Seats
- State/Management/NRI Quota Seats in Private Medical / Dental Colleges or any Private/ Deemed University
- Central Pool Quota Seats

Thursday, 9 February 2017
CBSE Class 6 - Geography - CH 8 - INDIA: CLIMATE, VEGETATION AND WILDLIFE (#cbsenotes)
INDIA: CLIMATE, VEGETATION AND WILDLIFE
Q & A based on Class 6 Geography NCERT Chapter
Q1: Define weather
Answer: Weather is about day to day changes in the atmosphere.
Q2: Define climate.
Answer: The climate is the average weather condition.
Q3: What are the indicators of a weather?
Answer: Changes in temperature, rainfall and sunshine etc.
Q4: Name the major seasons recognised in India.

Wednesday, 8 February 2017
CBSE Class 12 - Marking Scheme of Physics Sample Question Paper (2016-17) (#cbsePapers)
CBSE Class 12 - Marking Scheme of Physics Sample Question Paper (2016-17)
See Class 12 Physics Sample Question Paper (2016-17)

Class 12 - Business Studies - CH 12 Consumer Protection - Redressal Agencies (#cbsenotes) (#Class12BusinesStudies)
Redressal Agencies
Consumer Protection
Class 12 - Business Studies Question: What are different redressal agencies available for consumer grievances under Consumer Protection Act, 1986?
Answer: For the redressal of consumer grievances the act provides a three–tier machinery as:
① District Forum
② State Commission
③ National Commission
① District Forum
District forum is set up in each district by the state concerned. The important features are:
⒜ It consists of a President and two members, one of whom should be a woman, duly appointed by State Government.

Tuesday, 7 February 2017
Monday, 6 February 2017
CBSE Class 9- Maths - Surface Areas and Volumes -NCERT EXERCISE 13.7 (#cbsenotes)
Surface Areas and Volumes
NCERT EXERCISE 13.7
Q1: Find the volume of the right circular cone with
(i) radius 6 cm, height 7 cm
(ii) radius 3.5 cm, height 12 cm
Answer:
(i) Given, r = 6 cm, h = 7 cm
Volume of the cone = ⅓πr²h
= (1/3) × (22/7) × 6² × 7
= 264 cm³ (Answer)
(ii) Given, r = 3.5 cm, h = 12cm
Volume of the cone = ⅓πr²h
= (1/3) × (22/7) × 3.5² × 12
= 154 cm³ (Answer)

CBSE Class 12 - Physics Sample Question Paper (2016-17) (#cbsepapers)
CBSE Class 12 - Physics Sample Question Paper (2016-17)
See Class 12 Physics Marking Scheme SQP (2016-17)

Sunday, 5 February 2017
Class 11 - Business Studies - Nature and Purpose of Business - Business vs Profession vs Employment
Business vs Profession vs Employment
Important Differences
Sno. | Business | Profession | Employment |
---|---|---|---|
1. Definition | It refers to those economic activities which are connected with purchase, production and/or sale of goods and services with an objective of earning profits. | It includes those economic activities that require special knowledge or skills in the occupation. | It refers to the occupation in which people work for others get remuneration in return. |
2. Examples | Fishing, Mining, Production and selling of electronic goods | Medical Doctor, Lawer (Legal), Accountant | Worker, Salesman, Employee |
3. Mode of Establishment | Starts after completing some legal formalities needed. | Membership of a professional body and certificate/license to practice required. | Start after getting appointment (formal or informal) |

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