What is the wavelength of the electromagnetic wave used by this phone? In which direction will the image move when the object is moved father to the left? If a microwave oven produces electromagnetic...

What is the wavelength of the electromagnetic wave used by this phone? In which direction will the image move when the object is moved father to the left? If a microwave oven produces electromagnetic waves with a frequency of 2.25GH Z, what is their wavelength? If the angle to the third maximum above the central is 3.47’ what is the wavelength of the light?