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Model Papers
A cricket ball is project with a velocity of 29.4 m/sec. Find (a) The greatest range on the horizontal plane; and (b) The angle of projection to give a range of 44.10 m.
cbse
class12
modelpaper
2005
sec-b
q22
math
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asked
Jan 28, 2013
by
fingeazy
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A body falls freely from the top of a tower; It covers $\large\frac{5}{9}$th second. Find the height of the tower and the total by the body to fall down. of the whole distance in the last
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The probability that student entering a university will graduate is 0.4. Find the probability that out of 3 students of the university: • None will graduate, • Only one will graduate, • All will graduate.
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Jan 24, 2013
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An inclined plane makes an angle $30 ^{\circ}$ with horizontal. A groove $OA=5 m$ cut on the plane makes an angle $30 ^{\circ}$ with $OX$. A short smooth cylinder is free to slide down the groove under the influence of gravity. The time taken by the cylinder to reach from A to O is $(g=10 m/s^2)$
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A transverse wave propagating on a stretched string of linear density $3 \times 10^{-4}\;kg-m^{-1}$ is represented by the equation $y=0.2 \sin (15 x +60 l)$ where x is in meters and l is in seconds . The tension in the string (in newton) is :
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Two bags A and B contain 2 white, 4 red and 3 white, 3 red balls respectively. One of the bags is selected at random and a ball is drawn from it. If the selected ball is of white colour, find the probability that it is drawn from bag A.
cbse
class12
modelpaper
2012
sec-b
q22
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Jan 11, 2013
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In a book of 200 pages, 200 misprints are randomly distributed. Using Poisson's distribution calculate the probability that a randomly observed page of the book will be found to have atlest 3 errors. [Use: e -1 =0.3679]
cbse
class12
modelpaper
2005
sec-c
q22
math
asked
Jan 24, 2013
by
fingeazy
0
answers
There are two bags I and II. Bag I contains 3 white and 4 black balls and Bag II contains 5 white and 6 black balls. One ball is drawn at random from one of the bags and is found to be white. Find the probability that it was drawn from bag I.
cbse
class12
modelpaper
2012
sec-b
q22
math
asked
Jan 10, 2013
by
thanvigandhi_1
0
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