PhysicsEasy66×since 2002Q6874LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is 1.9 eV. Calculate the wavelength of light emitted and its colour. [h = 6.63 ×\times× 10^−-−34 Js and c = 3 ×\times× 10⁸ ms^−-−1]A654 nm and orange colourB654 nm and red colourC1046 nm and red colourD1046 nm and blue colourCheck answerSkip