The TV transmission tower of particular station has a height of 160 m.
How much popluation covered by the transmission, if the average density around the tower is 1200 `km^-2`?

A T.V. tower has a height of 80 m. By how much the height of tower be increased to triple its coverage range?

A T.V. tower has a height of 80 m. What is the maximum distance upto which this T.V. transmission can be received?

A small telescope has an objective lens of focal length 140 cm and an eyepiece of focal length 5.0 cm. (A) If this telescope is used to view a 100 m tall tower 3 km away, what is the height of the image of the tower formed by the objective lens? (B) What is the height of the final image of the tower if it is formed at 25 cm?

A T.V. tower has a height of 125 m. What is the maximum distance and area upto which this T.V. trasmission can be received? (Given: Radius of earth = 6.64 xx 10^(6)m )

In Fig., you see the frame of a lampshade. It is to be covered with a decorative cloth. The frame has a base diameter of 20 cm and height of 30 cm. A margin of 2.5 cm is to be given for folding it over the top and bottom of the frame. Find how much cloth is required for covering the lampshade. Assume pi = 22/7

A flooring tile has the shape of a parallelogram whose base is 24 cm and the corresponding height is 10 cm. How many such tiles are required to cover a floor of area 1080 m^2 ? (If required you can split the tiles in whatever way you want to fill up the corners).