In electromagnetic spectrum, the frequencies of γ-rays and x-rays and ultraviolet rays

In electromagnetic spectrum, the frequencies of γ-rays and x-rays and ultraviolet rays are denoted by n₁,n₂ and n₃ respectively, then

Options

(a) n₁>n₂>n₃
(b) n₁ (c) n₁>n₂ (d) n₁n₃

Correct Answer:

n₁>n₂>n₃

Explanation:

Frequency range of ultraviolet rays ≃ 10¹⁶ – 8 × 10¹⁴ (n₃)
Frequency range of X-rays ≃ 3 × 10¹⁹ – 10¹⁶ (n₂)
Frequency range of γ-rays ≃ 5 × 10²° – 3 × 10¹⁹ (n₁)
Therefore, n₁>n₂>n₃

admin:

Related Questions

  1. An objective moves ,starting from rest through a resistive medium
  2. A 0.5 kg ball moving with a speed of 12 m/s strikes a hard wall at an angle
  3. The horizontal range and the maximum height of a projectile are equal
  4. Copper of fixed volume V is drawn into wire of length l. When this wire is subjected
  5. The polarising angle of glass is 57⁰. A ray of light which is incident at this angle