Recent questions tagged class12

1. Government of India legalised MTP in 1981 with some strict conditions to avoid its misuse. 2. Such restrictions are meant to check indiscriminate and illegal female foeticides. Regarding 1 and 2 :

asked Jan 3, 2014 by pady_1

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1. Nearly 45 to 50 million MTPs are performed in a year all over the world 2. This accounts to 1/50th of the total number of conceived pregnancies in a year. Regarding 1 and 2 :

asked Jan 3, 2014 by pady_1

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Regarding Medical termination of pregnancy (MTP), choose the incorrect option:

asked Jan 3, 2014 by pady_1

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Regarding Oral Contraceptive pills - Saheli choose the incoorect option:

asked Jan 3, 2014 by pady_1

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Regarding advantage/s of Oral Contraceptive pills:

asked Jan 3, 2014 by pady_1

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Regarding the mechanism/s of action of Oral Contraceptive pills:

asked Jan 3, 2014 by pady_1

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Emergency contraceptives include:

asked Jan 3, 2014 by pady_1

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Regarding Oral pills:

asked Jan 3, 2014 by pady_1

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The hormone releasing IUDs, in addition to other IUDs

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The hormone releasing IUDs:

asked Jan 3, 2014 by pady_1

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Choose the odd one out:

asked Jan 3, 2014 by pady_1

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Intra Uterine Devices (IUDs): (i) are inserted by doctors or expert nurses in the uterus through ****** (ii) ideal contraceptives for the females who want to delay pregnancy and/or space children Regarding (i) and (ii):

asked Jan 3, 2014 by pady_1

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Based on the anatomical site of use choose the odd one out:

asked Jan 3, 2014 by pady_1

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An ideal contraceptive should be:

asked Jan 3, 2014 by pady_1

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Our population which was approximately 350 million at the time of our independence reached close to the billion mark by 2000 and crossed 1 billion in May 2000; this is due to a :

asked Jan 3, 2014 by pady_1

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A change A is divided into two parts: q and Q-q. if Coulomb repulsion between them when they are separated is maximum , $\large\frac{Q}{Q-q}$ should be :

asked Jan 3, 2014 by meena.p

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‘Saheli’:– (i) a new oral contraceptive for the females (ii) it was developed by scientists at Central Drug Research Institute (CDRI) in Lucknow, India Regarding (i) and (ii):

asked Jan 3, 2014 by pady_1

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Regarding Amniocentesis all are correct except:

asked Jan 3, 2014 by pady_1

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Improved programmes covering wider reproduction-related areas are currently in operation under

asked Jan 3, 2014 by pady_1

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1. India was amongst the first countries in the world to initiate action plans and programmes at a national level to attain total reproductive health as a social goal. 2. These programmes called ‘family planning’ were initiated in 1951. Regarding 1 and 2:

asked Jan 3, 2014 by pady_1

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According to the World Health Organisation (WHO), reproductive health means

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The equation of the plane through origin and the line of intersection of the planes $\overrightarrow r.\overrightarrow a=\lambda\:\:and\:\:\overrightarrow r.\overrightarrow b=\mu$ is ?

asked Jan 3, 2014 by rvidyagovindarajan_1

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The probability of a man hitting a target is $ \large\frac{3}{4}$. He tries 5 times. The probability that the target will be hit at least 3 times is

asked Jan 3, 2014 by thanvigandhi_1

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To obtain $6 \mu F $ capacity from $3$ capacitors of $4 \mu F$ each, they will be arranged as :

asked Jan 3, 2014 by meena.p

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An experiment can result in only 3 mutually exclusive events A,B and C. If $ P(A) = 2P(B) = 3P(C) $ then $P(A) =$

asked Jan 3, 2014 by thanvigandhi_1

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Three mangoes and three apples are kept in a box. If two fruits are selected at random from the box, the probability that the selection will contain one mango and one apple is

asked Jan 3, 2014 by thanvigandhi_1

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The electric potential as a function of distance x is given by $ V= (-5x ^2-10 x +9) \;volt$ . The electric field at point $(1,2)$ is

asked Jan 3, 2014 by meena.p

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A charge q is placed at middle point of the line joining two equal charges +Q. The value of q such that system is in equilibrium is :

asked Jan 3, 2014 by meena.p

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A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 25 V. The electric field at centre of sphere is :

asked Jan 3, 2014 by meena.p

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Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house is :

asked Jan 3, 2014 by thanvigandhi_1

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Two small spherical balls whose charges are $20 \mu c$ each are hanged with help of 1 m long thread from roof. In equilibrium both threads are seperated by $ 60^{\circ}$ Tension in each thread is :

asked Jan 3, 2014 by meena.p

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Two persons A and B have equal number of sons. There are three cinema tickets which are to be distributed among the sons of A and B. The probability that all the tickets go to sons of A is $ \large\frac{1}{20}$. The number of sons each of them is :

asked Jan 3, 2014 by thanvigandhi_1

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A $0.4 \mu F$ capacitor is charged to $1200 v. $ After removing battery a $0.2 \mu F$ capacitor is connected in parallel to it. The voltage on capacitor will become :

asked Jan 3, 2014 by meena.p

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Electric potential at any point is $V=-10 x +6y +\sqrt {60 }z$, then magnitude of electric field is :

asked Jan 3, 2014 by meena.p

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If capacitor is changed from 0 to 20 v using constant current. Variation in energy U of capacitor with time t will be

asked Jan 3, 2014 by meena.p

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All the capacitors shown in circuit are identical . Each can withstand maximum $100 V$ between its terminals . The maximum voltage that can be applied safely b/w A and B is

asked Jan 3, 2014 by meena.p

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Two metal balls of same radii are charged to 5 and -25 units of electricity . They are brought in contact with each other and then again seperated to original distance. Ratio of magnitude of force b/w two balls after and before contact is

asked Jan 3, 2014 by meena.p

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In a medium of dielectric constant K, the electric field is $\overrightarrow {E}$, if $\in _0$ is permittivity of free space , the electric displacement vector is :

asked Jan 3, 2014 by meena.p

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Potential of any point inside a charged hollow sphere :

asked Jan 3, 2014 by meena.p

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A force F acts between two charges kept 1 cm apart in air. If permittivity of air and dielectric constant of water are $\in _0$ and $K$ respectively, find the force acting when both atoms are placed in water.

asked Jan 3, 2014 by meena.p

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Total electric flux coming out of unit positive charge put in air is :

asked Jan 3, 2014 by meena.p

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n identical condensers are joined in series and are charged to potential v. Now they are seperated and joined in parallel. Total energy and potential difference of combination will be :

asked Jan 3, 2014 by meena.p

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The length of $\perp$ from origin to the plane passing through the point $\overrightarrow a$ and containing the line $\overrightarrow r=\overrightarrow b+\lambda \overrightarrow c$ is ?

asked Jan 3, 2014 by rvidyagovindarajan_1

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The equation of the plane through the line of intersection of the planes $ax+by+cz=d=0$ and $a'x+b'y+c'z+d'=0$ and parallel to the line $y=0,z=0$ is ?

asked Jan 3, 2014 by rvidyagovindarajan_1

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Integrate : $\int \sec^2 x \log (\tan x) .dx$

asked Jan 3, 2014 by meena.p

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Integrate : $\int \frac{y}{9}$$t \tan (t^2)dt$

asked Jan 3, 2014 by meena.p

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The line through the point $\hat i+3\hat j+2\hat k$ and $\perp$ to the lines $\overrightarrow r=(\hat i+2\hat j-\hat k)+\lambda(2\hat i+\hat j+\hat k)$ and $\overrightarrow r=(2\hat i+6\hat j+\hat k)+\mu (\hat i+2\hat j+3\hat k)$ is ?

asked Jan 3, 2014 by rvidyagovindarajan_1

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Integrate : $\int \large \frac{e^{\Large\cos ^{-1}x}}{\sqrt {1-x^2}}$$dx$

asked Jan 3, 2014 by meena.p

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The distance of the point $(-1,2,6)$ from the line through the point $(2,3,-4)$ along the vector $6\hat i+3\hat j-4\hat k$ is ?

asked Jan 3, 2014 by rvidyagovindarajan_1

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Integrate : $\cos ^3 x dx$

asked Jan 3, 2014 by meena.p

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