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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
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
Related Questions: - A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown
- The ratio of the dimensions of planck’s constant and that of the moment of inertia is
- The de-broglie wavelength of an electron in 4th orbit is
- Pick out the correct statements from the following
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Topics: Electromagnetic Waves
(28)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown
- The ratio of the dimensions of planck’s constant and that of the moment of inertia is
- The de-broglie wavelength of an electron in 4th orbit is
- Pick out the correct statements from the following
- The respective speeds of the molecules are 1,2,3,4 and 5 km/s.
Topics: Electromagnetic Waves (28)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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