CBSE Class 10 - Science - CH 14 Sources of Energy (Important Differences) (#cbseNotes)

Sources of Energy (Important Differences) 

Fossil Fuels Energy vs Solar Energy

	Fossil Fuels Energy	Solar Energy
1.	Fossil energy can be used day or night.	Can be used in day time. We need to store its energy to use it at night.
2.	The stock of fossil energy is limited. e.g. coals will last for next 200 years.	Sun’s energy is unlimited.
3.	Fossil energy is non-renewable. It takes millions of year to produce fossil fuel.	Solar energy is renewable source of energy.
4.	Give pollution.	Pollution Less
5.	Fossil fuels release energy when they are burnt in air.	Solar radiation carry packets of energy due to fusion reaction in the sun.

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

Mathematics -Syllabus (2017-18)

CBSE Class 11 Mathematics

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

CBSE Class 12 - Computer Science / Informatics Practices - Computer Networking - Data Transmission Media - Q and A (#cbseNotes)

Data Transmission Media

Computer Networking

Class 12 - Computer Science / Informatics Practices

Q & A

Q: Define transmission media.

Answer: The means or channel through which we send our data from one place to another are called transmission media.


Q: What are different categories of transmission media?

Answer:
① Guided or Wired Media- Examples are
ⅰ Twisted Pair Cable
ⅱ Co-axial cable
ⅲ Fibre active cable

② Unguided or Wireless Media - Examples are:
ⅰ Satellite
ⅱ Microwave
ⅲ Wifi
ⅳ Radiowave


Q: Define baud.

Answer: Baud is used as measurement for the information carry of a communication channel. It is measured in Kbps (kilobits Per Second), KBPS (Kilo Byte Per Second), and Mbps (Mega bits Per Second )

CBSE Class 9 Hindi (B) - कक्षा ९ - हिंदी - संचयन - पाठ १ - गिल्लू - शब्द-अर्थ (#cbseNotes)

पाठ १ - गिल्लू (शब्द-अर्थ )

कक्षा  ९ - हिंदी - संचयन 

लेखिका - महादेवी वर्मा 

शब्द-अर्थ 

सोन जूही -  जूही का एक प्रकार का फूल जो पीला व सुगन्धित  होता है| 

अनायास    - अचानक

हरीतिमा    - हरियाली 

लघु प्राण   - छोटा जीव

छुऔवल   -  चुपके से छूकर छुप जाना और छूना| 

CBSE Class 9 - Hindi (B) - कक्षा ९ - हिंदी (ब) -पाठ -१ स्पर्श धूल

धूल

कक्षा ९ - हिंदी (ब)

पाठ -१  स्पर्श 

लेखक रामविलास शर्मा

प्रश्न १: हीरे के प्रेमी उसे किस रुप में पसंद करते हैं?
उत्तर: हीरे के प्रेमी हीरे को साफ-सुथरा, खरादा हुआ और आंखों में चकाचौंध पैदा करता हुआ देखना पसंद करते हैं|


प्रश्न २: लेखक ने संसार में किस प्रकार के सुख को दुर्लभ माना है?

उत्तर: रामविलास शर्मा जी ने अखाड़े की मिट्टी और उसमें सनने से मिलनेवाले स्वभाविक सुख को दुर्लभ माना है|

प्रश्न ३: मिट्टी की आभा क्या है? उसकी पहचान किससे होती है?

उत्तर: मिट्टी की आभा धूल है|  मिटटी का रंग रुप ही उसकी पहचान होती है| 

CBSE Class 12 - Computer Science / Informatics Practices - Computer Networking - Q and A (#cbseNotes)

Computer Networking 

Q and A

Q1: What is a computer network?

Answer: A computer network is a collection of interconnected computers. Two computers are said to be interconnected if they are capable of sharing hardware, software and exchanging information.


Q2: Name the architectures that are involved in network design?

Answer:
① Peer to peer (P2P)
② Client - Server
③ Hybrid of client-server and P2P

CBSE Class 11 and 12 Computer Science - (C++ / Python) -Syllabus (2017-18) (#cbseNotes)

Computer Science (C++ / Python) -Syllabus (2017-18)

CBSE Class 11 and 12 Computer Science

Here presents the prescribed syllabus for Class 11 and Class 12 Computer Science for the curriculum 2017-18.