The sun emits a light with maximum wavelength $510\, mm$ while another star $X$ emits a light with maximum wavelength of $350\, nm$. What is the ratio of surface temperature of sun and the star $X$
  • A$2.1$
  • B$0.68$
  • C$0.46$
  • D$1.45$
AIIMS 2000, Medium
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