To cover a population of 20 lakh,a transmission tower should have a height (radius of earth =6400km,population per square km=1000 ) (A) 25m (B) 50m (C) 75m (D) 100m

From the top of a cliff 25 m high the angle of elevation of a tower is found to be equal to the angle of depression of the foot of the tower. The height of the tower is (a) 25 m (b) 50 m (c) 75 m (d) 100 m

A TvV tower has a height of 100 m. Find the area covered by the TV broadast, if radius of the earth is 6400 km.

If g on the surface of the earth is 9.8 m//s^2 , its value at a height of 6400km is (Radius of the earth =6400km )

The length of the side of a square whose area is four xx the area of a square with side 25m is (a) 12.5m (b) 50m (c) 100m (d) 125m

A TV tower has a height of 500 m at a given place. Calculate the coverage range, if the radius of the earth is 6400 km.

T.V. transmission tower at a particular station has a height of 160m . ( a ) What is the coverage range? ( b ) How much population is covered by transmission, if the average population density around the tower is 1200 per km^(2) ? ( c ) What should be the height of tower to double the coverage range

A vertical stick 20 m long casts a shadow 10m long on the ground. At the same time, a tower casts a shadow 50m long on the ground. The height of the tower is (a) 100m (b) 120m (c) 25m (d) 200m

The area covered by a transmitting antenna of height 50 m is alpha pi (km)^(2) . Find alpha . (Radius of earth =6400 km )

The TV transmission tower at Pitampura,Delhi has a height F235 m. what is coverage range if the radius of the earth is 6400 km.

A T.V. transmission tower at a particular station has a height of 160 m . (a) What is its coverage range ? (b) How much population is covered by transmission , if the average population density around the tower is 1200 km^(-2) ? ( c ) By how much the height of tower be increased to double its coverage range ? Given radius of earth = 6400 km .