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

Related Questions:

1. A drum of radius R and mass M, rolls down without slipping along an inclined plane
2. A monoatomic gas is suddenly compressed to (1/8)th of its initial volume adiabatically.
3. A astronomical telescope has objective and eye-piece of focal lengths
4. A beam of electron passes undeflected through mutually perpendicular
5. The electric potential at a point (x,y,z) is given by V = – x²y – xz³ + 4.

Topics: Electromagnetic Waves (28)
Subject: Physics (2479)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends