Need for Modulation

JEE Main Physics · Communication Systems · 3 questions, latest first

• To radiate EM signal of wavelength λ with high efficiency, the antennas should have a minimum size equal to:202313 April, Shift 2 · Q50
• The power radiated from a linear antenna of length l is proportional to (Given, λ= Wavelength of wave):20238 April, Shift 2 · Q42
• Given below are two statements: Statement I: For transmitting a signal, size of antenna ( l ) should be comparable to wavelength…202331 January, Shift 2 · Q19