CBSE Class 12 - English (Core)- Sample Question Paper (2015)

CBSE Class 12 - English (Core)- Sample Question Paper (2015) 

CBSE Class 7 - Geography - CH 10 - Life in the Deserts (NCERT Solutions)

Life in the Deserts

Monastery in Ladakh Region
photo credits: MartinPosta

NCERT Chapter 10 Textbook Solutions

Q1: What are the two types of deserts found in the world?

Answer: Hot Deserts and Cold Deserts


Q2: In which continent is the Sahara desert located?

Answer: It is located in northern part of Africa continent.


Q3: What are the climatic conditions of the Ladakh desert?

Answer: Ladakh climate is extremely cold and dry. During summer the temperature varies from 3° C to 30° C and in winters it ranges from -20° C to -35° C


Q4: What mainly attracts tourists to Ladakh?

Answer: Trekking, Monasteries and adventure tourism mainly attracts people visit Ladakh.


Q5: What type of clothes the people of the Sahara desert wear?

Answer: Heavy robes to protect against heavy winds and wind storms.

CBSE Class 10 - SA2 - Hindi (B) - Sample Question Paper (2015)

CBSE Class 10 - Hindi (B)- SA2- Sample Question Paper (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.

_______________________________________________________

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?

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  

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.