Recent questions tagged jeemain

Study the following lists

asked Oct 26, 2013 by thanvigandhi_1

1 answer

The value of k , if (1,2),(k,1) are conjugate points with respect to the ellipse $2x^2+3y^2=6$ is

asked Oct 25, 2013 by meena.p

1 answer

For the parabola $y^2+6y-2x+5=0$(I) The vertex is (-2,-3) (II) The directrix is y+3=0

asked Oct 25, 2013 by meena.p

1 answer

The condition for the coaxial system $x^2+y^2+2 \lambda x +c=0,$ where $\lambda$ is a parameter and c is a constant to have distinct limiting points, is

asked Oct 25, 2013 by meena.p

1 answer

The inverse point of (1,2) with respect to the circle $x^2+y^2-4x-6y+9=0$ is

asked Oct 25, 2013 by meena.p

1 answer

Study the following lists

asked Oct 25, 2013 by thanvigandhi_1

1 answer

From the phytohormones given below, identify the pairs which have mutually opposite influence on seed germination , stem elongation and stomatal movement respectively :

asked Oct 25, 2013 by thanvigandhi_1

1 answer

The nucleotide sequence on antisense strand of DNA which is transcribed as codon that specifies the amino acid serine is

asked Oct 25, 2013 by thanvigandhi_1

1 answer

The equation of the circle of radius 3 that lies in the fourth quadrant and touching the lines x=0 and y=0 is

asked Oct 25, 2013 by meena.p

1 answer

Assertion (A) : Reduced coenzyme formed in the oxidation of isocitric acid accounts for more ATP production in electron transport than the reduced coenzyme formed in succinic acid oxidation. Reasons (R) : In the reoxidation of mitochondrial NADH, the number of protons translocated from matrix to intermembrane space is less than the protons translocated when $FADH_2$ is oxidized.

asked Oct 25, 2013 by thanvigandhi_1

1 answer

The number of ATP required in excess to assimilate atmosphere $CO_2$ to four molecules of triose phosphates in $C_4$ plants as compared to $C_3$ plants is

asked Oct 25, 2013 by thanvigandhi_1

1 answer

If 8 molecules of Ribulose 1, 5-bisphosphate molecules are oxygenated by RUBISCO, how many PGA molecules are ultimately available to PCR cycle in photosynthetic carbon oxidation cycle?

asked Oct 25, 2013 by thanvigandhi_1

1 answer

The cosine of the angle A of the triangle with vertices $A(1,-1,2), B(6,11,2),C(1,2,6)$ is

asked Oct 25, 2013 by meena.p

1 answer

A student has taken 6000 molecules of Fructose 1, 6-bisphosphate and 2 molecules of Aldolase into an enzyme reaction mixture to determine its activity. After 5 minutes, 50% substrate was found converted into products. Then, what is the TON of Aldolase and the total number of trioses formed by the enzyme action at the end of 5 minutes?

asked Oct 25, 2013 by thanvigandhi_1

1 answer

Study the following combinations and identify the correct matches related to the role of essential mineral elements in plants :

asked Oct 25, 2013 by thanvigandhi_1

1 answer

The ratio in which yz - plane divides the line segment joining $(-3,4,-2)$ and $(2,1,3)$ is

asked Oct 25, 2013 by meena.p

1 answer

The number of stomata and epidermal cell in $ 1 mm^2$ area of abaxial surface of the leaves of A, B , C and D plants are given below. Identify the plant having the least stomatal index :

asked Oct 25, 2013 by thanvigandhi_1

1 answer

If the lines $x^2+2xy-35y^2-4x+44y-12=0$ and $5x+\lambda y-8=0$ are concurrent, then the value of $\lambda$ is

asked Oct 25, 2013 by meena.p

1 answer

Study the following table showing the components of water potential of three mesophyll cells - A,B and C

asked Oct 25, 2013 by thanvigandhi_1

1 answer

The angle between the pair of straight lines formed by joining the points of intersection of $x^2+y^2=4$ and $y=3x+c$ to the origin is a right angle. Then $c^2$ is equal to

asked Oct 25, 2013 by meena.p

1 answer

In the triangle with vertices at $A(6,3),B(-6,3)$ and $C(-6,-3)$ the median through A meets BC at P, the line AC meets the x-axis at Q,while R and S respectively denote the orthocenter and centroid of the triangle. Then the correct matching of the coordinates of points in List -I to List - II is

asked Oct 25, 2013 by meena.p

1 answer

If $A(2,-1)$ and $B(6,5)$ are two points the ratio in which the foot of the perpendicular from (4,1) to AB divides it, is

asked Oct 25, 2013 by meena.p

1 answer

Study the following lists with reference to transmission of viral diseases

asked Oct 25, 2013 by thanvigandhi_1

1 answer

The angle between the line joining the points $(1,-2),(3,2)$ and the line $x+2y-7=0$ is

asked Oct 25, 2013 by meena.p

1 answer

Which of the following pair is correct?

asked Oct 25, 2013 by thanvigandhi_1

1 answer

In order to eliminate the first degree terms from the equation $2x^2+4xy+5y^2-4x-22y+7=0,$ the point to which origin is to be shifted, is

asked Oct 25, 2013 by meena.p

1 answer

Study the following lists

asked Oct 25, 2013 by thanvigandhi_1

1 answer

The probability distribution of a random variable X is given by

asked Oct 25, 2013 by meena.p

1 answer

The mean and standard deviation of a binomial variate x are 4 and $\sqrt 3$ respectively. Then $P( X \geq 1)$ is equal to

asked Oct 25, 2013 by meena.p

1 answer

If half mole of oxygen combine with Al to form $Al_2O_3$,the weight of Al used in the reaction is

asked Oct 25, 2013 by sreemathi.v

1 answer

A bag contains 6 white and 4 black balls. Two balls are drawn at random. The probability that they are of the same colour, is

asked Oct 25, 2013 by meena.p

1 answer

If A and B are mutually exclusive events with $P(B) \neq 1,$ then $P(A | \bar {B})$ is equal to (Here $\bar B$ is the complement of the event B)

asked Oct 25, 2013 by meena.p

1 answer

Four numbers are chosen at random from {1,2,3............,40}. The probability that they are not consecutive, is

asked Oct 25, 2013 by meena.p

1 answer

When the same amount of zinc is treated separately with excess of $H_2SO_4$ and excess of $NaOH$,the ratio of volumes of $H_2$ evolved is

asked Oct 25, 2013 by sreemathi.v

1 answer

Let $\overrightarrow {a}=a_1\hat i+a_2 \hat j+a_3 \hat k$ Assertion (A): The identify $|\overrightarrow a \times \hat i |^2+|\overrightarrow a \times \hat j|^2+|\overrightarrow a \times \hat k| ^2=2 | \overrightarrow a |^2$ holds for $\overrightarrow {a}$. Reason (R): $\overrightarrow {a} \times \hat i =a_3 \hat j- a_2 \hat k, \overrightarrow a \times \hat j= a_1 \hat k- a_3 \hat i, \overrightarrow a \times \hat k=a_2 \hat i- a_1 \hat j$ Which of the following is correct ?

asked Oct 25, 2013 by meena.p

1 answer

Number of ions present in 2.0 litre of a solution of $0.8MK_4Fe(CN)_6$ is

asked Oct 25, 2013 by sreemathi.v

1 answer

The volume (in cubic units) of the tetrahedron with edges $\hat i+\hat j+\hat k, \hat i - \hat j+\hat k$ and $\hat i+2 \hat j-\hat k$ is

asked Oct 25, 2013 by meena.p

1 answer

If $\overrightarrow {a}=\hat i+\hat j-\hat k$ and $\overrightarrow{b} =+ \lambda \hat i- 3\hat j+\hat k$ and the orthogonal projection of $\overrightarrow b$ on $\overrightarrow a $ is $\large\frac{4}{3}$$ (\hat i-\hat j-\hat k)$, then $\lambda$ is equal to

asked Oct 25, 2013 by meena.p

1 answer

The mole fraction of water in 20% aqueous solution of $H_2O_2$ is :

asked Oct 25, 2013 by sreemathi.v

1 answer

A partially dried clay mineral contains 8% water.The original sample contained 12% water and 45% silica.The % of silica in the partially dried sample in nearly :

asked Oct 25, 2013 by sreemathi.v

1 answer

The ratio in which $\hat i+2 \hat j+5 \hat k$ divides the join of $-2\hat i+3 \hat j+5 \hat k$ and $7 \hat i - \hat k$ is

asked Oct 25, 2013 by meena.p

1 answer

The percentage of sodium in a break-fast cereal,labelled as 110mg of sodium per 100g of cereal is

asked Oct 25, 2013 by sreemathi.v

1 answer

If the points whose position vectors are $2 \hat i+\hat j+\hat k, 6 \hat i-\hat j+2 \hat k$ and $14\hat i-5 \hat j+p \hat k$ are collinear, then the value of p is

asked Oct 25, 2013 by meena.p

1 answer

The angle of elevation of an object from a point P on the level ground is $\alpha$. Moving d meters on the ground towards the object. the angle of elevation is found to be $\beta$. Then the height (in meters) of the object is

asked Oct 25, 2013 by meena.p

2 answers

The solubility of $K_2SO_4$ in water is 16g at $50^{\large \circ}C$.The minimum amount of water required to dissolve $4g\;K_2SO_4$ is

asked Oct 25, 2013 by sreemathi.v

1 answer

In $\Delta ABC,$ with usual notation. Observe the two statements given below:(I) $rr_1r_2r_3=\Delta ^2$ (II) $r_1r_2+r_2r_3+r_3r_1=s^2$ Which of the following is correct ?

asked Oct 25, 2013 by meena.p

1 answer

In $\Delta ABC, (a+b+c) \bigg(\tan \large\frac{A}{2}$$+\tan \large\frac{B}{2}\bigg)$ is equal to

asked Oct 25, 2013 by meena.p

1 answer

$Al_2(SO_4)_3.XH_2O$ has 8.1% aluminum by mass.The value of $X$ is

asked Oct 25, 2013 by sreemathi.v

1 answer

The hydrated salt,$Na_2SO_4.nH_2O$ undergoes 55.9% loss in weight on heating and becomes anhydrous.The value of n will be

asked Oct 25, 2013 by sreemathi.v

1 answer

If two angles of $\Delta ABC$ are $45^{\circ}$ and $60^{\circ}$, then the ratio of the smallest and the greatest sides are

asked Oct 25, 2013 by meena.p

0 answers

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