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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: - According to photon theory of light which of the following physical quantities,
- A black body at 227⁰C radiates heat at the rate of 7cals/cm²s. At a temperature
- For the normal eye, the cornea of eye provides a converging power of 40D
- A neutron is moving with a velocity u.It collides head on and elastically with an atom
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
Topics: Electromagnetic Waves
(28)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- According to photon theory of light which of the following physical quantities,
- A black body at 227⁰C radiates heat at the rate of 7cals/cm²s. At a temperature
- For the normal eye, the cornea of eye provides a converging power of 40D
- A neutron is moving with a velocity u.It collides head on and elastically with an atom
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
Topics: Electromagnetic Waves (28)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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