Question
Cut or excised leaves remain green for long if induced
to root or dipped in_____Solution
Cytokinin are plant growth hormones which are basic in nature cytokinins induce formation of new leaves chloroplasts in heaves, which inturn keeps the leaves green for a longer duration of time. Cytokinins applied to marketed vegetables can keep them fresh for several days. Shelf life of cut shoots and flowers is krolonged by employing the hormones.
A and B are the centres of two circles with radii 11 cm and 6 cm respectively. A common tangent touches these circles at P & Q respectively. If AB =...
Find the area of triangle having sides 8 m, 9 m, and 13 m.
The length of the each side of an equilateral triangle is 28√3. The area of incircle, (cm 2 ) is
∆ABC and ∆DEF are similar and their areas are respectively 25 cm2 and 36 cm 2 . If EF = 7.2 cm BC is?
In the given figure, Ab = 30 cm and CD = 24 cm. What is the value (in cm) of MN?
In a right angle triangle, the product of two sides is half of the square of the third side (i.e., hypotenuse). Accordingly find out the acute angle?
AB and AC are the two tangents to a circle whose radius is 6 cm. If ∠BAC = 60o, then what is the value (in cm) of √(AB2 + AC...
The radius of a circle is 25 cm, and the length of the chord is 14 cm. Find the distance between the chord and the centre of the circle. Â
If O is circumcentre of acute angled triangle ABC, if ∠ BAC = 40 ˚ then ∠BOC = ?
In ΔABC, PQ is parallel to BC If AP: PB= 3:4 and AQ= 6 cm, AC is equal to?
