Recent questions tagged medium

The first step in photosynthesis is the

asked Apr 8, 2014 by sreemathi.v

1 answer

Photophosphorylation is the process in which

asked Apr 8, 2014 by sreemathi.v

1 answer

In which of the following process the light energy is converted into chemical energy

asked Apr 8, 2014 by sreemathi.v

1 answer

A straight line through the point $A(3,4)$ is such that its intercept between the axis is bisected at A. Its equation is

asked Apr 8, 2014 by meena.p

1 answer

Our present day view regarding photosynthesis is that it

asked Apr 8, 2014 by sreemathi.v

1 answer

During photosynthesis,$O_2$ is liberated by oxidation of

asked Apr 8, 2014 by sreemathi.v

1 answer

If one of the lines given by $6x^2-xy+4cy^2=0$ is $3x+4y=0$ then c equals

asked Apr 8, 2014 by meena.p

1 answer

An arch is in the form of a semi ellipse. It is 8m wide and 2 m high at the centre. Find the height of the arch at a point 1.5 m from one end.

asked Apr 8, 2014 by balaji.thirumalai

1 answer

The emperical formula for chlorophyll is

asked Apr 8, 2014 by sreemathi.v

1 answer

The first product of $CO_2$-fixation in $C_3$ plants is

asked Apr 8, 2014 by sreemathi.v

1 answer

The first food substance plants make in photosynthesis is

asked Apr 8, 2014 by sreemathi.v

1 answer

If the sum of the slopes of the lines given by $x^2-2cxy-7y^2=0$ is four times their product c has the value.

asked Apr 8, 2014 by meena.p

1 answer

In photosynthesis

asked Apr 8, 2014 by sreemathi.v

1 answer

The cable of a uniformly loaded suspension bridge hangs in the form of a parabola. The roadway which is horizontal and 100 m long is supported by vertical wires attached to the cable, the longest wire being 30 m and the shortest being 6 m. Find the length of a supporting wire attached to the roadway 18 m from the middle.

asked Apr 8, 2014 by balaji.thirumalai

1 answer

The oxygen in photosynthesis is released from

asked Apr 8, 2014 by sreemathi.v

1 answer

Let $A(2,3)$ and $B(-2,3)$ be vertices of a triangle ABC. If the centriod of this triangle moves on the line $2x+3y=1$ then the locus of the vertex C is the line .

asked Apr 8, 2014 by meena.p

1 answer

An arch is in the form of a parabola with its axis vertical. The arch is 10 m high and 5 m wide at the base. How wide is it 2 m from the vertex of the parabola?

asked Apr 8, 2014 by balaji.thirumalai

1 answer

Locus of centriod of the triangle whose vertices are $(a \cos t, a \sin t),(b \sin t,-b \cos t)$ and $(1,0)$ where t is a parameter is

asked Apr 8, 2014 by meena.p

1 answer

If the pair of straight lines $x^2-2pxy-y^2=0$ and $x^2-2qxy-y^2=0$ be such that each pair bisects the angle between the other pair then,

asked Apr 8, 2014 by meena.p

1 answer

The pair of lines represented by $3ax^2+5xy+(a^2-2)y^2=0$ are perpendicular to each other for

asked Apr 8, 2014 by meena.p

1 answer

Find the equations of the hyperbola satisfying the given conditions: Foci: $(0,\pm \sqrt {10})$ and passing through $(2,3)$.

asked Apr 8, 2014 by balaji.thirumalai

1 answer

If the pair of lines $ax^2+2hxy +by^2+2gx+ 2fy+c=0$ intersect on the y-axis then

asked Apr 8, 2014 by meena.p

1 answer

If a,b and c are in A.P thin the straight line $ax+by+c=0$ will always pass through line $ax+by+c=0$ will always pass through a fixed point whose coordinates are

asked Apr 8, 2014 by meena.p

1 answer

Given the points $A(0,4)$ and $B(0,-4)$ the equation of the locus of the point $P(x,y)$ such that $|AP-BP|=6$ is

asked Apr 8, 2014 by meena.p

1 answer

The set of lines $ax+by+c=0$ where $3a+2b+4c=0$ is concurrent at the point.

asked Apr 8, 2014 by meena.p

1 answer

The area enclosed within the curve $|x|+|y|=1$ is

asked Apr 8, 2014 by meena.p

1 answer

Let A and B be two events such that $P( \bar {P \cup B})=\large\frac{1}{6}$, $P(A \cap B)=\large\frac{1}{4}$ and $P(\bar {A})=\large\frac{1}{4}$, where $\bar {A}$ stands for the complement of the event A. Then the events A and B are :

asked Apr 7, 2014 by meena.p

1 answer

Let PS be the median of the triangle with vertices P(2, 2), Q(6, –1) and R(7, 3). The equation of the line passing through (1, –1) and parallel to PS is

asked Apr 7, 2014 by sreemathi.v

1 answer

Let $a, b, c\; and \;d$ be non-zero numbers. If the point of intersection of the lines $4ax + 2ay + c = 0$ and $5bx+2by+d=0$ lies in the fourth quadrant and is equidistant from the two axes then

asked Apr 7, 2014 by sreemathi.v

1 answer

$\lim\limits_ {x \to 0} \large\frac{\sin (\pi \cos ^2 x) }{x^2}$ is equal to :

asked Apr 7, 2014 by meena.p

1 answer

If $X= \{ 4^n-3n-1:n \in N\}$ and $Y=\{9(n-1):n \in N\}$. Where $N$ is the set of natural numbers , then $X \cup Y $ is equal to

asked Apr 7, 2014 by meena.p

1 answer

The area of the region described by A={$(x,y):(x^2+y^2\leq 1$ and $y^2\leq 1-x$}

asked Apr 7, 2014 by sreemathi.v

1 answer

The locus of the foot of perpendicular drawn from the centre of the ellipse $x^2+3y^2=6$ on any tangent to it is:

asked Apr 7, 2014 by meena.p

1 answer

Let C be the circle with centre at (1, 1) and radius = 1. If T is the circle centred at (0, y) passing through origin and touching the circle C externally, then the radius of T is equal to

asked Apr 7, 2014 by sreemathi.v

1 answer

Three positive numbers form an increasing G.P. If the middle term in this G.P. is doubled, the new numbers are in A.P. Then the common ratio of the G.P. is

asked Apr 7, 2014 by meena.p

1 answer

If $(10)^9+2(11)^1 (10)^8+ 3(11)^7+.....+10(11)^9=k(10)^9,$ then $k$ is equal to

asked Apr 7, 2014 by meena.p

1 answer

Let the population of rabbits surviving at a time $'t'$ be governed by the differential equation $\large\frac{dp(t)}{dt}=\frac{1}{2}$$p(t)-200$ <br> If p(0)= 100, then what is the value of p(t)?

asked Apr 7, 2014 by sreemathi.v

1 answer

The angle between the lines whose direction cosines satisfy the equations $1+m+n=0$ and $1^2=m^2+n^2$ is

asked Apr 7, 2014 by meena.p

1 answer

If $f$ and $g$ are differentiable function in $[0, 1]$ satisfying $f(0)=2 = g(1),g(0)= 0$ and $f(1)=6 $, then for some $c\in [0,1]$

asked Apr 7, 2014 by sreemathi.v

1 answer

The slope of the line touching both the parabolas $y^2 = 4x$ and $x^2 =- 32y$ is

asked Apr 7, 2014 by meena.p

1 answer

If $x=-1$ and $x = 2$ extreme points of $f(x)= \alpha \log |x| +\beta x^2+x$ then

asked Apr 7, 2014 by meena.p

1 answer

If $g$ is the inverse of a function $f$ and $f'(x) =\large\frac{1}{1+x^5}$, then $g'(x)$ is equal to

asked Apr 7, 2014 by meena.p

1 answer

Let $\alpha$ and $\beta$ be the roots of equation $px^2 +qx+r=0,p\neq 0.$If p,q,r are in A.P.and $\large\frac{1}{\alpha}+\frac{1}{\beta}$$=4$,then the value of $\mid\alpha-\beta\mid$ is

asked Apr 7, 2014 by sreemathi.v

1 answer

Assume that an electric field $\bar {E}=30x^2 \hat i$ exists in space. Then the potential difference $V_A - V_O$ , where $V_O$ is the potential at the origin and $V_A$ the potential at $x = 2$ $m$ is :

asked Apr 7, 2014 by meena.p

1 answer

Two beams, $A$ and $B$, of plane polarized light with mutually perpendicular planes of polarization are seen through a polaroid. From the position when the beam $A$ has maximum intensity (and beam $B$ has zero intensity), a rotation of polaroid through $30^{\circ}$ makes the two beams appear equally bright. If the initial intensities of the two beams are $I_A$ and $I_B$ respectively, then $\large\frac{I_A}{I_B}$ equals :

asked Apr 7, 2014 by meena.p

1 answer

On heating water, bubbles being formed at the bottom of the vessel detatch and rise. Take the bubbles to be spheres of radius $R$ and making a circular contant fo radius $r$ with the bottom of the vessel. If $r << R$ and the surface tension of water is $T$, value of $r$ just before bubbles detatch is : (density of water is $\rho_w$ )

asked Apr 7, 2014 by meena.p

1 answer

The most suitable reagent for the conversion of $R-CH_2 -OH\rightarrow R-CHO$ is

asked Apr 7, 2014 by sreemathi.v

1 answer

When a rubber-band is stretched by a distance $x$, it exerts a restoring force of magnitude $F=ax+bx^2$ where $a$ and $b$ are constants. The work done in stretching the unstretched rubber-band by $L$ is :

asked Apr 7, 2014 by meena.p

1 answer

For complete combustion of ethanol $C_2H_5OH(l)+3O_2(g)\rightarrow 2CO_2(g)+3H_2O(l)$ the amount of heat produced as measured in bomb calorimeter,is 1$364.47\; kJ mol^{–1}$ at $25^{\large\circ}C$.Assuming ideality the Enthalpy of combustion,$\Delta_eH$,for the reaction will be: $(R = 8.314 kJ mol^{–1}$)

asked Apr 7, 2014 by sreemathi.v

1 answer

A block of mass $m$ is placed on a surface with a vertical cross section given by $y=\large\frac{x^3}{6}$. If the coefficient of friction is $0.5$, the maximum height above the ground at which the block can be placed without slipping is :

asked Apr 7, 2014 by meena.p

1 answer

Ask Questions, Get Answers