The velocity of heat radiation in vacuum is [EAMCET 1982; KCET 1998] – McqOptions

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1.	The velocity of heat radiation in vacuum is [EAMCET 1982; KCET 1998]
A.	Equal to that of light
B.	Less than that of light
C.	Greater than that of light
D.	Equal to that of sound
Answer» B. Less than that of light

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