Recent questions tagged ch11

Find the equation of an ellipse that satisfies the following conditions: $b=3, c=4$, centre at origin and foci on x-axis.

asked Apr 3, 2014 by balaji.thirumalai

1 answer

Find the equation of an ellipse that satisfies the following conditions: $a = 4$ and Foci = $(\pm3,0)$

asked Apr 3, 2014 by balaji.thirumalai

1 answer

Find the equation of an ellipse that satisfies the following conditions: Length of minor axis $ = 16$ and Foci $ = (0,\pm6)$

asked Apr 3, 2014 by balaji.thirumalai

1 answer

Find the equation of an ellipse that satisfies the following conditions: Length of major axis is $26$ and Foci is $(\pm5,0)$

asked Apr 3, 2014 by balaji.thirumalai

1 answer

Find the equation of an ellipse that satisfies the following conditions: Ends of Major Axis $\;(0, \pm\sqrt 5)$, Ends of Minor Axis $\;(\pm 1,0)$

asked Apr 2, 2014 by balaji.thirumalai

1 answer

Find the equation of an ellipse that satisfies the following conditions: Ends of Major axis $\;(\pm3,0)$, Ends of Minor Axis $\;(0, \pm 2)$

asked Apr 2, 2014 by balaji.thirumalai

1 answer

Find the equation of an ellipse that satisfies the following conditions: Vertices $\;(\pm6,0)$, Foci $\;(\pm4,0)$

asked Apr 2, 2014 by balaji.thirumalai

1 answer

Find the equation of an ellipse that satisfies the following conditions: Vertices $\;(\pm 13,0)$, Foci $\;(\pm 5,0)$

asked Apr 2, 2014 by balaji.thirumalai

1 answer

Find the equation of an ellipse that satisfies the following conditions: Vertices $\;(\pm5,0)$, Foci $\;(\pm4,0)$

asked Apr 2, 2014 by balaji.thirumalai

1 answer

Find the coordinates of the foci, the vertices, the length of the major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse $4x^2+9y^2=36$

asked Apr 2, 2014 by balaji.thirumalai

1 answer

Find the coordinates of the foci, the vertices, the length of the major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse $16x^2+y^2=16$

asked Apr 2, 2014 by balaji.thirumalai

1 answer

Find the coordinates of the foci, the vertices, the length of the major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse $36x^2+4y^2 = 144$

asked Apr 2, 2014 by balaji.thirumalai

1 answer

The external solution having more concentration than the cell sap is called

asked Apr 2, 2014 by sreemathi.v

1 answer

The membrane that allows some solute molecules to pass through it and prevent others is called

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The roots of transpiring plants is directly proportional to relative humidity}\\\text{Reason:Humid air increases the rate of diffusion so that the rate of transpiration increases}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Most of the water absorbed by the plants is lost by transpiration}\\\text{Reason:Water is not needed for vital activities of plants}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses -

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses -

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Wax,resin and suberin coating on the surface of plant parts reduce the rate of transpiration}\\\text{Reason:These adaptations are found mostly in xerophytes}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Light is very important external factor of transpiration}\\\text{Reason:Light induces stomatal opening and darkness stomatal closure.Thus the rate of transpiration increases in light and decreases in dark}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:If a bottle filled with volatile substance is opened at a corner of the room the odour of substance can be smelled from another corner}\\\text{Reason:The volatile substances diffuse from the region of higher concentration to the region of lower concentration}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The water molecules are held together from substomatal cavities in leaves to the roots because of cohesive force}\\\text{Reason:Water does not ascend in stem due to transpiration pull}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses -

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Plasmolysis occurs when the plant cells are highly placed in concentrated sugar or salt solution}\\\text{Reason:Highly concentrated sugar or salt solution acts as hypotonic solution which leads to exosmosis}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The cells of the root have lower water potential than leaf cells }\\\text{Reason:Root cells have greater solute concentration}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses$\begin{array}{1 1}\text{Assertion:Root pressure is the reason for ascent of sap in herbaceous plants}\\\text{Reason:Root pressure is due to diffusion pressure gradient and is maintained by the activity of living cells}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Match the items of column I with the appropriate items in column II:

asked Apr 2, 2014 by sreemathi.v

1 answer

Match the items of column I with the appropriate items in column II:

asked Apr 2, 2014 by sreemathi.v

1 answer