Answer:
The electromagnetic force.
Radio waves have the lowest radiant energy, hope this helps :]
Answer:
0.003181 radians
0.003005 radians
Explanation:
Number of slits = 140 /cm
λ = Wavelength = 434 nm = 434×10⁻⁹ m
m = 3 Third order spectrum
Space between slits

Now,

0.003181 radians
When λ = 410 nm = 410×10⁻⁹ m

0.003005 radians
Infrared contains the least energy and ultraviolet contains the most energy. The energy of a wave is inversely proportional to its