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.
Sunday, 29 November 2015
Thursday, 12 November 2015
CBSE Class 8 - Science Ch 13 - Sound (Worksheet)
Sound
Worksheet
![]() |
Prolonged Use of Headphones and loud music can make you deaf |
Write True or False for the senses given below. Also rewrite the false statements correctly:
1. Sound is a mechanical wave.
______________________________________________________
2. Sound can travel through vacuum.
_______________________________________________________
3. Sound is produced by a vibrating body.
_______________________________________________________
4. The maximum displacement of a body from its mean position is called amplitude of oscillation.
________________________________________________________
5. Loudness of a sound is measured in Hertz.
_______________________________________________________

Wednesday, 4 November 2015
CBSE Class 10 - Physics - Reflection of Light By Plane and Spherical Mirrors (V Short Q and A)
Reflection of Light By Plane and Spherical Mirrors
![]() |
Laughing Mirrors use combination of Spherical Mirrors and Plane Mirrors. Is this image real or virtual? |
Very Short Question Answers (Based on NCERT Chapter)
Q1: What is the position of the object, when we get a diminished image with a concave mirror?
Answer: Beyond C (centre of curvature)
Q2: What are Marginal rays?
Answer: The rays which strike the mirror surface near the periphery are called marginal rays.
Q3: What type of rear mirrors are used by drivers in automobiles?
Answer: Convex mirrors
Q4: What is the relation between the radius of curvature (R) and focal length (f) of a concave mirror?
Answer: R = 2f
Q5: What is a focal length in case of spherical mirrors?
Answer: It is the distance between focal length and focus.
Q6: An object is moving with a speed v towards a plane mirror, what is the speed of the image?

Tuesday, 3 November 2015
CBSE Class 7 - Geography - CH 9 Life In The Temperate Grasslands (NCERT Solutions)
Life In The Temperate Grasslands
NCERT Chapter Solutions
![]() |
Prairies - Temperate Grasslands in USA |
Q1: What are the Temperate Grasslands of North America called?
Answer: The temperature grasslands of North America are called Prairies.
Q2: What are the cattle farms in the North American Grasslands known as?
Answer: The cattle farms in North America are known as Ranches.
Q3: Name the rivers that drain the Velds.
Answer: The tributaries of rivers Orange and Limpopo drain the Velds.
Q4: When is the rainy season in the Velds?
Answer: In the summer month from November to February.
Q5: What is the major occupation of the people of the South African grasslands?
Answer: Sheep rearing

Sunday, 18 October 2015
CBSE Class 8 - Science - CH 15 - Some Natural Phenomena (Worksheet)
Some Natural Phenomena
![]() |
Tsunami hits at San Jose: picture by Angela Riddock |
Worksheet based on Class 8 NCERT Chapter 15
Fill in the blanks with appropriate words given below:
seismograph, Ritcher scale, static, earthquake, positive, earthing, thunder, Like charges, seismic waves, unlike charges, electroscope
1. _______ electricity consists of electric charges which do not flow.
2. A glass rod when rubbed with a piece of silk cloth gets charged with ________ charge.
3. Seismic waves are recorded by an instrument called ____________.
4. An explosive sound heard during lightning is termed as _________.
5. _____ _______ repel each other while ______ _______ attract each other.

Saturday, 17 October 2015
CBSE Class 7 - Geography - CH8 - HUMAN ENVIRONMENT INTERACTIONS: THE TROPICAL AND THE SUBTROPICAL REGION (NCERT Solution)
HUMAN ENVIRONMENT INTERACTIONS:
THE TROPICAL AND
THE SUBTROPICAL REGION
THE SUBTROPICAL REGION
![]() |
One Horn Rhinoceros - Found at Assam image credits: wikipedia |
NCERT Chapter Solutions
Q1: Name the continent in which the Amazon Basin located.
Answer: Amazon Basin is located in South America.
Q2: What are the crops grown by the people of Amazon Basin?
Answer: The crops grown by the people of Amazon basin are:
(i) Coffee
(ii) Maize
(iii) Cocoa.
Q3: Name the birds that you are likely to find in the rain-forests of the Amazon.
Answer: Birds likely find in rain forests of Amazon basin are:
(i) Toucans,
(ii) Humming birds,
(iii) birds of paradise with their brilliantly coloured plumage.
Q4: What are the major cities located on the River Ganga?
Answer: (i) Allahabad (ii) Kanpur (iii) Varanasi
(iv) Haridwar (v) Patna (vi) Kolkatta.

Thursday, 15 October 2015
CBSE Class 6 - 8 : संज्ञा – विकार कारक
संज्ञा – विकार कारक
प्रश्न.1 कारक किसे कहते है?
उतर- संज्ञा या सर्वनाम के जिस रूप से वाक्य के किसी दुसरे शब्द के साथ उसका संबंध जाना जाए, वह कारक कहलाता है|
प्रश्न.2. कारक के कितने भेद होते है?
उतर- कारक के आठ भेद होते है:
1. कर्ता कारक
2. कर्म कारक
3. करण कारक
4. संप्रदान कारक
5. अपादान कारक
6. संबंध कारक
7. अधिकरण कारक
8. संबोधन कारक
प्रश्न. 3. करता कारक किसे कहते है?
उतर- संज्ञा या सर्वनाम के उस भेद को करता कहते है जिससे क्रिया के करने वाले का भोड़ होता है|
प्रश्न.4. कर्म कारक किसे कहते है?
उतर- जिस शब्द पर क्रिया का प्रभाव पड़े, उसे कर्म कारक कहते है|
प्रश्न.5. कर्ण कारक किसे कहते है?
उतर- करता जिस साधन की सहायता से काम करता है, उसे कर्ण कारक कहा जाता है|

Subscribe to:
Posts (Atom)