spectra : electromagnetic spectrum

maroon, red, orange, light yellow, dark green, cyan, indigo.

red, orange, yellow, green, blue, indigo, violet.

red, orange, yellow, green, cyan, lime, indigo

blue, green, pink, brown, orange.

ganma rays, ex-rays, ultrapurple, infra, microscope, radio

grandma rays, ex-girlfriend, ultraman, infra, micro-organism, radio fm

gamma rays, x-rays, ultraviolet, infrared, microwaves, radio waves.

entahla lupa la, sorry

gamma rays

radio waves

radio waves

gamma rays

3 x 10^18 m/s

3 x 10^7 m/s

3 x 10^8 m/s

skin cancer

blind

heart attack

minimise their exposure

find another job

standing well away when a patient being examined

none of above

radio-waves, gamma rays, ultraviolet, infrared, micro waves

gamma rays, x-rays, ultraviolet, infrared, microwaves, radiowaves

radio waves, microwaves, infrared, ultraviolet, x-rays, gamma rays

infrared waves have longer wavelengths than red

visible light lies between infrared and microwaves in the electromagnetic spectrum

all electromagnetic waves travel at the same same speed in vacuum

all electromagnetic waves travel at the same time in air

microwaves

infrared

gamma rays