Concept Used:
Frequency of electromagnetic radiations increases in the order:
Radio waves < Microwaves < Infrared < Visible light < Ultraviolet < X-rays < Gamma rays < Cosmic rays
Identification of given radiations:
(a) Radiation from FM radio → Radio waves
(b) Radiation from microwave oven → Microwaves
(c) Amber light from traffic signal → Visible light
(d) X-rays → X-rays
(e) Cosmic rays from outer space → Highest frequency radiations
Arrangement in increasing order of frequency:
FM radio < Microwave oven < Amber light < X-rays < Cosmic rays
Final Answer:
FM radio < Microwave oven < Amber light < X-rays < Cosmic rays
Considering Bohr’s atomic model for hydrogen atom :
(A) the energy of H atom in ground state is same as energy of He+ ion in its first excited state.
(B) the energy of H atom in ground state is same as that for Li++ ion in its second excited state.
(C) the energy of H atom in its ground state is same as that of He+ ion for its ground state.
(D) the energy of He+ ion in its first excited state is same as that for Li++ ion in its ground state.