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Wavelength of light used in an optical instrument are ₁=4000 Å and ₂=5000 Å , then ratio of their respective resolving powers (corresponding to ₁ and ₂ ) is

Options

  1. A16 : 25
  2. B9 : 1
  3. C4 : 5
  4. D5 : 4

Correct answer

D. 5 : 4

Step-by-step solution

Resolving power (1 / ) . Hence, ( R.P )₁ ( R.P )₂ = ₂ ₁ = 5 4

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