Sunday, 9 December 2012

CBSE Class 10 - Physics - CH11: The Human Eye and the Colourful World (Worksheet)

The Human Eye and the Colourful World
Human Eye
credits:openclipart
(Worksheet)

Fill in the blanks

1. The transparent spherical membrane covering the front of the eye is called ____________.

2. _______ is the surface which acts as screen and image is formed on it.

3. The coloured diaphragm between cornea and lens is known as __________.

4. A small hole in iris which controls the intensity of light entering the eye is called __________.

Saturday, 8 December 2012

CBSE Class 7 - Maths - CH8 - Comparing Quantities (Ratio and NCERT Ex 8.1)

Comparing Quantities(Ratio)
Ratio of Circumference: Diameter = π
image credits: openclipart

Important Points

1. In the ratio x:y (called as x is to y), x is called the first term or antecedent. y is called the second term or consequent.

2. While comparing two quantities, the units must be the same.

3. A ratio remains unchanged if both its terms are multiplied or divided by same non-zero number.

 

4. The ratio (p:q) is said to be in simplest form when HCF of p and q is 1.

NCERT Exercise 8.1

Q1: Find the ratio of:
(a) ₹ 5 to 50 paise
(b) 15 kg to 210 g
(c) 9 m to 27 cm
(d) 30 days to 36 hours

Friday, 7 December 2012

CBSE Class 10 - CH4 - Carbon and Its Compounds (MCQs)

Carbon and Its Compounds
(MCQs)

Q1: Which of the following is an odd compound?

(a) Ethene
(b) Ethane
(c) Propene
(d) Acetylene


Thursday, 6 December 2012

CBSE Class 10 - Proficiency Test Paper 2012 (English -Vocabulary) Solution

Proficiency Test Paper 2012 (English -Vocabulary) Solution
You may download 2012 Proficiency Test Paper English from CBSE website
Part-D (VOCABULARY)
Q(1-5): Choose the word nearest in meaning to the word in bold:

1. abandon

(a) leave ✓
(b) forget
(c) sacrifice
(d) adopt

Wednesday, 5 December 2012

CBSE Class 9 - Eng. Comm. Workbook - Integrative Grammar Practice 4

INTEGRATIVE GRAMMAR PRACTICE 4

Q1: Study the following sentences. Select the one underlined word which is incorrect. Write the incorrect answer in the boxes provided. One has been done as an example.

e.g. The National Gallery of Art at Washington D.C., is one of the world's greatest museums.
at

Answer:
a) Millions of people had entered its doors to see the paintings by some of the world's finest artists.
had  (It should be 'have entered'.)

b) But if, those priceless masterpieces are to be preserved, the gallery must protected them carefully.
protected (correction: protect)

c) The 150 guards have successively prevented damage and theft.
and (correction: or)

d) But, protecting the paintings from nature was a greater problem.
was (correction:is)

Tuesday, 4 December 2012

Class 7 - NSO Test Paper - Mental Ability (2012)

NSO Test Paper -  (2012)
Mental Ability

Q1: Which of the following statements is INCORRECT?

(a) All integers and fractions are called rational numbers.
(b) The number 0 is neither a positive nor a negative rational number.
(c) There are limited number of rational numbers between two rational numbers.
(d) A number that can be expressed in the form of p/q, where p and q are integers and q ≠0 is called rational number.

Q2: Aman rotated a game piece 270° clock wise around vertex V as shown in figure. Which of the following represent the position of the game piece after 270° clock wise rotation?


Monday, 3 December 2012

CBSE Class6/7/8/9/10/CTET - English Grammar - Articles (Worksheet)

Articles
(Worksheet)

Q: Fill in the blanks with appropriate articles. If there is no need, put a cross mark ()

1. _____ apple is ______ fruit.
2. _____ umbrella is ______ useful thing.
3. My sister got ______ best student award.
4. ____ elephant never forgets.
5. You are ______ hour late.
6. ______ Mumbai Queen is an express train which runs from Pune to Mumbai.
7. William Wordsworth was ______ great poet.
8. London is on ____ Thames.
9. This is _______ first time I have visited _______ village.
10. Do you speak ____ German?
11. I ate _______ apple, ______ egg and _______ loaf of bread.
12. ____ earth moves round ____ sun.