Monday, 17 December 2012

CBSE Class 9 - हिंदी (ब) - मुहावरे

मुहावरे 

a. खाला जी का घर                    b. नाकों चने चबाना                   c.  आँखों का तारा होना 
d. लकीर पीटना               e. नाक में दम करना                  f.  चार चाँद लगाना 
g. एड़ी चोटी का जोर लगाना        h. छाती पर सांप लोटना                i.  नौ दो ग्यारा होना 
j. सूखकर कांटा होना                  k. घी के दिए जलाना                  l. दर दर भटकना  
m. जले पर नमक छिकना        n.  मन्त्र मुग्ध होना                    o. घुटने टेक देना 
p. घी के दिए जलाना                 q. छक्के छुड़ा देना                      r. आँखे पथरा जाना 
s. ईंट से ईंट बजाना                  t. धूल झोंकना 
उपरलिखित मुहावरों द्वारा वाक्य पूर्ति कीजिये:

1. बीमार आशा को जब में देखने गयी तो उसका शरीर ______________________ हो गया था ।
2. जबसे उसकी नौकरी छूटी है वह _______________ रही है ।

Sunday, 16 December 2012

CBSE Class 11 - PSA Sample Paper by CBSE


Class 11 -PSA Paper




See the Sample Answer Sheet


CBSE Class 9 - PSA Sample Paper by CBSE


Class 9 -PSA Paper




See the Sample Answer Sheet


CBSE Class 9 - PSA Quiz (Social Science)

PSA Quiz (Social Science)

(Sample PSA paper from a public school in Delhi)(Passage based MCQs) Read the given passage carefully and answer the following questions:

The heaviest rainfall (11520 cm) in the world has been recorded in Mawsynram (Meghalaya) while the western part of Jaisalmer district is one of the driest part of the world, recording about 9cm of rainfall in a year. There is a wide contrast in the amount of rainfall received by different parts of the country. There is wide contrast in the amount of rainfall received by different parts of the country. Total rainfall increases generally eastward.

Q1: At which place has the maximum rainfall in the world been recorded?

(a) Karakoram
(b) Amritsar
(c) Mawsynram
(d) Indore

Saturday, 15 December 2012

CBSE Class 9 - PSA Quiz (Physics)


PSA Quiz (Physics)
(Passage based MCQs)
The distance time graph shows the motion of four cows walking from the grass land to their sheds. Choose the appropriate option from multiple choices given:

Q1: Based on average velocity, which cow is the fastest?


(a) Kareena
(b) Katrina
(c) Priyanka
(d) Bipasha

CBSE Class 10 - Physics - CH11: The Human Eye and the Colourful World (NCERT Q & A)

The Human Eye and the Colourful World
CBSE Class 10 - Physics - CH11: The Human Eye and the Colourful World (NCERT Q & A)
Dispersion of Light
Which light bends the most?
credits:wpclipart
(NCERT Chapter Q & A, Other Questions asked in CBSE Exam)

Q1(NCERT): What is meant by power of accommodation of the eye?

Answer: Power of accommodation is the ability of the eye lens to focus near and far objects clearly on the retina by adjusting its focal length. Power of accommodation of the eye is limited. It implies the focal length of the eye lens cannot be reduced beyond certain minimum limit.

Q2(CBSE 2011): A person cannot see the objects distinctly, when placed at a distance less than 50 cm.
(a) Identify the defect of vision.
(b) Give two reasons for this defect.
(c) Calculate the power and nature of the lens he should be using to see clearly the object placed at a distance of 25 cm from his eyes.
(d) Draw the ray diagrams for the defective and the corrected eye.


Answer: (a) Defect of vision = Hypermetropia  or Long-sightedness

Friday, 14 December 2012

CBSE Class 7 - Maths - CH8 - Comparing Quantities (Percentage, Ex 8.2)

Comparing Quantities 
(Percentage)

Important Points

1. Per cent is derived from Latin word ‘per centum’ meaning ‘per or out of hundred
2. 25% = 25 out of hundred = 25/100 = 1/4 = 0.25
3. Graphically it can be represented as shown.
4.Fractions and decimals can be converted to percentages and vice versa.

Q1: Convert the following to per cents:





Answer: