Question

Arrange the following type of radiations in increasing order of frequency: (a)

radiation from microwave oven (b) amber light from traffic signal (c) radiation from

FM radio (d) cosmic rays from outer space and (e) X-rays.​

Answer 1

Answer:we know ,

increasing order of wavelength of radiation :

cosmic rays < γ rays < X rays < UV rays < visible rays < infrared rays < micro waves < radio waves

but we also know,

frequency = speed of light ( constant )/wavelength

so, increasing order of frequency of radiation just opposite of wavelength ,

e.g., radio waves < micro waves < infrared rays < visible rays < UV rays < X rays < γ rays < cosmic rays

Now, come to the question ,

The order of frequency is radiation from FM radio < micro wave < Amber colour ( visible rays ) < X rays < cosmic rays.

Explanation: