Anlogy:
Height of a person : cm, length of your sharpened pencil lead?

While measuring the length of a sharpened pencil, reading of the scale at one end is 2.0 cm and at the other end is 12.1 cm. What is the length of the pencil?

The least distance of distance vision of a person is 75 cm. The focal length of the reading spectacles for such a person should be

The rate of change of weight of person w in kg with respect to their height h in centimeters is given approximately by (dw)/(dh) = 4.364 xx 10^(-5) h^2 . Find weight as a function of height. Also find the weight of a person whose height is 150 cm .

A cylindrical pencil is sharpened to produce a perfect cone at one end with no over all its length. The diameter of the pencil is 1 cm and the length of the conical portion is 2 cm. Calculate the volume of the peels. Give your answer correct to two places if it is in decimal [use pi=(355)/(113) ]

The yield point of a typical solid is about 1%. Suppose you are lying horizontally and two persons are pulling your hands and two persons are pulling your legs along your own length. How much will be the increase in your length if the strain is 1% ? Do you think your yield point is 1% or much less than that ?

A concave mirror forms an image of 20 cm high object on a screen placed 5.0 m away from the mirror. The height of the image is 50 cm. Find the focal length of the mirror and the distance between the mirror and the object.