Name a conveinent unit to be used for measuring the following quantities:
(a) Distance between two cities
(b) Length of a room in your house
(c) Height of Qutab Minar
(d) thickness of a single hair
(d) Diameter of a tea cup

Name a convenient unit to be used for measuring the Distance between two cities

Name a convenient unit to be used for measuring the Length of a room in your house

Name the mode of heat transfer in each of the following cases :following cases: (a) In a vessel of boiling water. (b) Heat energy teaching us from the sun. (c) A vessel kept on a hot stove becomes hot. (d) Warm breeze from the land flows towards the sea. (e) A spoon kept in a hot tea cup becomes warm.

Rohan wants to measure the distance of a pond during the visit to his native. He marks points A and B on the opposite edges of a pond as shown in the figure below. To find the distance between the points, he makes a right-angled triangle using rope connecting B with another point C are a distance of 12m, connecting C to point D at a distance of 40m from point C and the connecting D to the point A which is are a distance of 30m from D such the angleDC=90^0 Find the length of the rope used.

Rohan wants to measure the distance of a pond during the visit to his native. He marks points A and B on the opposite edges of a pond as shown in the figure below. To find the distance between the points, he makes a right-angled triangle using rope connecting B with another point C are a distance of 12m, connecting C to point D at a distance of 40m from point C and the connecting D to the point A which is are a distance of 30m from D such the angleDC=90^0 Find the length AB?

Just as precise measurements are necessary in science, it is equally important to be able to make rough estimates of quantities using rudimentary ideas and common observations. Think of ways by which you can estimate the following (where an estimate is difficult to obtain. try to get upper bound on the quantity) : (a) the total mass of rain-bearing clouds over India during the Monosoon (b) the mass of an elephant (c) the wind speed during a storm (d) the number of strands of hair on your head (e) the number of air molecules in your classroom.

Rohan wants to measure the distance of a pond during the visit to his native. He marks points A and B on the opposite edges of a pond as shown in the figure below. To find the distance between the points, he makes a right-angled triangle using rope connecting B with another point C are a distance of 12m, connecting C to point D at a distance of 40m from point C and the connecting D to the point A which is are a distance of 30m from D such the angleDC=90^0 What is the distance AC?

Given below are two quantities named A and B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose among the possible answers. Quantity 1: If the sum of the circumference and the radius of a circle is 102 cm then find the quantity of radius of the same circle. Quantity 2: If the perimeter of a rectangle is 42 cm and the length of the rectangle is twice the width then find the length of the rectangle.