Write the frequency of EM waves spectrum in increasing order.
1
X-rays < microwave < infrared wave < Visible light < ultraviolet < Radio < Gamma rays
2
Radio > microwave > infrared wave > Visible light > ultraviolet > X-rays > Gamma rays
3
Radio < microwave < infrared wave < Visible light < ultraviolet < X-rays < Gamma rays
4
Visible light < microwave < infrared wave < radio < ultraviolet < X-rays < Gamma rays