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CBSE XII
CBSE XII
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Questions from: CBSE XII
Flavr Savr variety of tomato which remains fresh for a long time than a normal variety
cbse
class12
biology
zoology
neet
sec-a
answered
Jan 16
by
nisargsh2001
1
answer
Write the number of all one-one functions from the set A = { a, b, c} to itself.
cbse
class12
modelpaper
2011
sec-a
q1
math
answered
Jan 12
by
singhankush1356
1
answer
A and B throws a pair of die turn by turn. The first to throw 9 is awarded by a prize. If A starts the game, show that the probability of A getting the prize is \(\large \frac{9}{17} \).
cbse
class12
modelpaper
2012
sec-b
q22
math
answered
Jan 12
by
ankitgupta1301789
1
answer
Find the area of circle \( x^2+y^2=16\) which is exterior of the parabola \( y^2=6x\).
cbse
class12
modelpaper
2012
sec-c
q25
math
answered
Jan 10
by
www.rahimlaskar786
1
answer
Three carp fishes, catla, labeo and cirrhinus can be grown together in the same pond more economically as they have
cbse
class12
biology
zoology
neet
sec-a
answered
Jan 9
by
shrijithmbjithumb2510
1
answer
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.
cbse
class12
modelpaper
2005
sec-c
q22
math
answered
Jan 8
by
subasri.arasu
1
answer
Let N be the set of natural numbers and R be the relation in N defined as \(R = {(a, b) : a = b – 2, b > 6}\). Then \[ \begin{array} ((A)\: (2, 4) ∈ R \quad & (B)\: (3, 8) ∈ R \\ (C) \: (6, 8) ∈ R \quad & (D)\: (8, 7) ∈ R. \end{array} \]
cbse
class12
modelpaper
2012
sec-a
q1
math
answered
Jan 3
by
valasenthil
1
answer
Which of the following is a pair of viral diseases
cbse
class12
biology
zoology
neet
sec-a
answered
Dec 30, 2018
by
sangitabhadre
1
answer
Find the direction cosines of a line, passing through origin and lying in the first octant, making equal angles with the three coordinates axes.
cbse
class12
modelpaper
2012
sec-a
q10
math
answered
Dec 28, 2018
by
goyat78606
1
answer
The probability that a student entering an university will graduate is 0.4. Find the probability that out of 3 students of the university: (i) none will graduate (ii) only one will graduate (iii) all will graduate.
cbse
class12
modelpaper
2012
sec-b
q21
math
answered
Dec 26, 2018
by
shekhar81123987320
1
answer
If $ A=\begin{bmatrix} 2 & 0 & 0 \\ 0 & 2 & 0 \\ 0 & 0 & 2 \end{bmatrix},\;then\;A^5=?$
cbse
class12
additionalproblem
kvquestionbank2012
ch3
q18
p8
math
sec-a
answered
Dec 25, 2018
by
awokekefale2018
1
answer
Which organism is useful to form biofertilizers?
cbse
class12
biology
zoology
neet
sec-a
answered
Dec 25, 2018
by
hussainarifahmed
1
answer
Find the area included between the parabolas $ y^2=4ax\;and\;x^2=4ay$
cbse
class12
additionalproblem
kvquestionbank2012
ch8
q3
p31
math
answered
Dec 25, 2018
by
kamaleshtiwari129
2
answers
The technique using fluid around foetus in detection of prenatal disorders is
cbse
class12
biology
zoology
neet
sec-a
answered
Dec 24, 2018
by
dk7260041
1
answer
The first movement of foetus and appearance of hair on its head are usually observed during which month of pregnancy?
cbse
class12
biology
zoology
neet
sec-a
answered
Dec 24, 2018
by
dk7260041
1
answer
The process of delivery of foetus is called
cbse
class12
biology
zoology
neet
sec-a
answered
Dec 23, 2018
by
pankajsuryavansh001
1
answer
What is the angle between the direction of electric field at any. (i) axial point and (ii) equatorial point due to an electrical dipole ?
cbse
class12
physics
modelpaper
mock-test-series-2015
answered
Dec 22, 2018
by
snhaich
1
answer
A company has two plants to manufacture motor cycled. 70% motor cycles are manufactured at the first plant, while 30% are manufactured at the second plant. At the first plant, 80% motor cycles are rated of the standard quality while at the second plant, 90% are rated of standard quality. A motor cycle, randomly picked up, is found to be of standard quality. Find the probability that it has come out from the second plant.
cbse
class12
modelpaper
2005
sec-c
q21
math
answered
Dec 20, 2018
by
randhirsingh6315
1
answer
If a plasmid vector is digested with ECoRI at a single site
cbse
class12
biology
zoology
neet
sec-a
answered
Dec 14, 2018
by
amitsworld1987
1
answer
The potential difference across the collector of a transistor, used in common emitter mode is $1.5\;V,$ with the collector resistance of $3\;k \Omega.$ Find 1. The emitter and 2. The base current, if the d.c. gain of the transistor is $50$
cbse
class12
physics
modelpaper
mock-test-series-2015
answered
Dec 12, 2018
by
mg.sankkar
1
answer
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
math
answered
Dec 6, 2018
by
hrithwikp
1
answer
Verify Lagrange's mean value theorem for the following function : \( f(x) = \sin \: x - \sin\: 2x \: in \: [0, \pi ] \)
cbse
class12
modelpaper
2012
sec-b
q14
math
answered
Dec 6, 2018
by
kp5018800
1
answer
If vagus nerve is damaged , which one of the following will not be affected?
cbse
class12
biology
zoology
neet
sec-a
answered
Dec 2, 2018
by
hnood1419
1
answer
If pH of stomach is 7, which component of food would be affected?
cbse
class12
biology
zoology
neet
sec-a
answered
Dec 2, 2018
by
hnood1419
1
answer
Select the pair that consists of plant growth regulators only
cbse
class12
biology
botany
neet
sec-a
answered
Nov 30, 2018
by
dnyanusborale
1
answer
A catering agency has two kitchen to prepare food at two places A and B. From these places 'Mid-day Meal' is to be supplied to three different schools situated at P, Q , R. The monthly requirement of the school are respectively 40,40 and 70 food packets. A packet contains lunch for 1000 students. The capacity of kitchen A and B are 60 and 70 packets per month respectively. The transportation cost per packets from the kitchens to school is given below : How many packets from each kitchen should be transported to school so that the cost of transportation is minimum? Also find the minimum cost.
cbse
class12
modelpaper
2012
sec-c
q29
math
answered
Nov 30, 2018
by
vanshgreat08
1
answer
Find the scalar and vector components of the vector with initial point ( 2, 1 ) and terminal point ( -5, 7 ).
cbse
class12
modelpaper
2012
sec-a
q9
math
answered
Nov 29, 2018
by
ranjani.hogwarts
1
answer
The given figures below show three stages in the cardiac cycle. Which one of the following sequences is correct regarding this.
cbse
class12
biology
zoology
neet
sec-a
answered
Nov 29, 2018
by
elakelam
1
answer
tan^-1 + cos^-1(-1/2) + sin^-1(-1/2)
answered
Nov 24, 2018
by
gujjarkavitakasana
1
answer
The year $2003$ was celebrated as the $50^{th}$ anniversary of:
cbse
class12
biology
botany
neet
sec-a
answered
Nov 24, 2018
by
lakrajitender5
1
answer
Show that the four points ( 0, -1, -1 ), ( 4, 5, 1 ) and (-4, 4, 4 ) are coplanar. Also find the equation of the plane containing them.
cbse
class12
modelpaper
2011
sec-b
q21
math
answered
Nov 21, 2018
by
lneha286
1
answer
Examine which of the following is a binary operation.
cbse
class12
modelpaper
2012
sec-b
q12
math
answered
Nov 21, 2018
by
basumbonika96
1
answer
State the relation between the frequency $\gamma$ of radiation emitted by LED and the band gap energy $E$ of the semiconductor used to fabricate it .
cbse
class12
physics
modelpaper
mock-test-series-2015
answered
Nov 20, 2018
by
sukhnoorsingh234
1
answer
Find the equation of plane determined by the points A(3, -1, 2), B(5, 2, 4) and C(-1, -1, 6). Also find the distance of the point P(6, 5, 9) from the plane.
cbse
class12
modelpaper
2012
sec-c
q27
math
answered
Nov 17, 2018
by
adithya.vinod
1
answer
Find the foot of the perpendicular drawn from the point A(1,0,3) to the join of the points B(4,7,1) and C(3,5,3)
cbse
class12
additionalproblem
kvquestionbank2012
ch11
q11
p37
math
answered
Nov 10, 2018
by
gargtanu21
1
answer
What is a semiconductor? Describe the two main types of semiconductors and contrast their conduction mechanism.
cbse
class12
chemistry
ch1
states-of-matter
solid-state
sec-c
easy
bookproblem
q1.17
answered
Nov 8, 2018
by
amilasbest15
2
answers
Coloured balls are distributed in three bags as shown in the table below, a bag is selected at random and then two balls are randomly drawn from the selected bag. They happen to be black and red. what is the probability that they came from bag 1 ?
cbse
class12
modelpaper
2009
sec-c
q27
math
answered
Nov 7, 2018
by
classicshameer10
1
answer
Two dice are thrown. Find the probability that the number appeared have a sum 8 if it is known that second dice always exhibits 4.
cbse
class12
additionalproblem
kvquestionbank2012
ch13
q45
p43
math
answered
Nov 2, 2018
by
sk334122
1
answer
How will you prepare benzyl alcohol from benzaldehyde with out using a reducing agent ?
cbse
class12
chemistry
sec-a
ch-11
alcohols-phenols-and-ethers
answered
Nov 2, 2018
by
anil197771
1
answer
Prove that an angle in a semi-circle is a right angle (using vector only).
cbse
class12
modelpaper
2012
sec-b
q18
math
answered
Oct 30, 2018
by
ranjani.hogwarts
1
answer
Simple cuboidal epithelium lines all the following structures except
cbse
class12
biology
zoology
neet
sec-a
answered
Oct 28, 2018
by
golukumar0326
1
answer
Which Indian plants have either been patented or attempts have been made to patent them by Western nations for their commercial use?
cbse
class12
biology
zoology
neet
sec-a
answered
Oct 28, 2018
by
karthikeyanjagadeesh55
1
answer
Which of the following companies started selling humulin in the year 1983?
cbse
class12
biology
zoology
neet
sec-a
answered
Oct 28, 2018
by
karthikeyanjagadeesh55
1
answer
Plants of this group are diploid and well adapted to extreme conditions. They grow bearing sporophylls in compact structures called cones. The group in reference is
cbse
class12
biology
botany
neet
sec-a
answered
Oct 27, 2018
by
ankitashoksingh307
1
answer
Solve the differential equation \( (x+y)dy+(x-y)dx=0\)
cbse
class12
modelpaper
2012
sec-b
q19
math
answered
Oct 25, 2018
by
avinashanand2017
1
answer
A cricket player is fast chasing a ball in the field , which one of the following group of bones are directly contributing to the movement?
cbse
class12
biology
zoology
neet
sec-a
answered
Oct 24, 2018
by
atharvadevdhar25
1
answer
Gel electrophoresis is a technique of
cbse
class12
biology
zoology
neet
sec-a
answered
Oct 22, 2018
by
sorammoni
1
answer
Solve the differential equation: dy/dx=(x+y+1)/(x+y)
answered
Oct 21, 2018
by
niteshp282000
1
answer
Rate of mutation is affected by
cbse
class12
biology
botany
neet
sec-a
answered
Oct 19, 2018
by
sitharausman213
1
answer
The given figures A to D show four animals. Select the option with respect to a common characteristic of two of these animals.
cbse
class12
biology
zoology
neet
sec-a
answered
Oct 19, 2018
by
sandy007rajput
1
answer
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