Paper chromatography is used to remove or separate leaf pigments of any green plants. With the proper mobile and stationary phase, the pigments such as chlorophyll, xanthophyll, etc. can be converged. The remaining methods cannot separate the leaf pigment from the plants as it will only destroy its pigments.
The sum of the total surface areas of two cubes is 1548 cm2. If the product of the length of their edges is 97 cm2, then find the ...
The areas of three adjacent faces of a cuboidal tank are 3 m², 12 m² and 16 m². The capacity of the tank. in litres, is:
Point (4, 5) is the centre of a circle. A point (9, 11) is lying on a circle. Find the area of the circle.
Perimeter of a square and circumference of a circle are in the ratio 15:11, respectively. If area of the square is 225 cm2, then find the rad...
The volume and height of a cylinder are 4224 cm3 and 21 cm. Find the radius of the cylinder.
The perimeter of a rectangle is 110% more than perimeter of a square of side 20 cm. If the length of rectangle is 240% more than side of square then fin...
The lengths of a pair of parallel sides of a trapezium are respectively 22 cm and 18 cm, and the perpendicular distance between these two sides is 15 cm...
The circumference of a square and the circumference of a cube are equal. The numerical value of the total surface area of the cube is 25 times the perim...
A train 130 meters long travelling at 54 km/hr crosses the bridge in 30 sec. Then the length of the bridge is:
The perimeter of the rectangle is 50 cm and the breadth is 4 times the length. Find the area of rectangle.
