Every hot object emits
(A) X-rays
(B) Visible light
(C) Infrared rays
(D) Ultraviolet rays
Correct Answer : Infrared rays
Question Asked : SSC CGL Tier-I (CBE) Exam 2016
Explanation : As per Planck’s law colder objects emit waves with very how frequency (such as radio or microwaves), while hot objects emit infrared rays or even ultraviolet and higher frequencies. At room temperature, most of the radiation is in the infra-red region.
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Tags : Physics