A source and a detector ` D` of high frequency waves are `a` distance `d` apart on the ground . Maximum signal is received at `D` when the reflecting layer is at a height `H`. When the layer rises a distance `h` , no signals is detected at `D` . Neglecting absorption in the atmosphere , find the relation between ` d , h , H`, and the wavelength `lambda` of the waves .

A source S and a detector D high frequency waves are a distance d apart on the ground. The direct wave from S is found to be in phase at D with the wave from S that is reflected from horizontal layer at an altitude H . The incident and reflected rayes make the same angle with the reflecting layer. When the layer rises a distance h , no signal is detected at D . Negle ct absorption in the atmosphere and find the relation between d,h, H and the wavelength lambda of the waves.

A source S and a detector D high frequency waves are a distance d apart on the ground. The direct wave from S is found to be in phase at D with the wave from S that is reflected from horizontal layer at an altitude H . The incident and reflected rayes make the same angle with the reflecting layer. When the layer rises a distance h , no signal is detected at D . Negle ct absorption in the atmosphere and find the relation between d,h, H and the wavelength lambda of the waves.

What is the relation between height h and depth d for the same change in g?

If g is same at a height h and at a depth d , then

If g is same at a height h and at a depth d , then

Let g_(h) and g_(d) the acceleration due to gravity at height h above the earth s surface and at depth d below the earth surface respecitively if g_(n) = g_(d) then the releation between h and d is