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The velocity of radio-waves is 3×10⁵ km/s. The frequency corresponding to wavelength of 300 m is
Options
(a) 1 MHz
(b) 10 MHz
(c) 1 kHz
(d) 10 kHz
Correct Answer:
1 MHz
Explanation:
Frequency ʋ = Velocity v / Wavelength λ = v / λ
⇒ ʋ = (3 × 10⁵ × 10³) / 300 = 10⁶ Hz = 1 MHz
Related Questions: - If the sodium light in Young’s double slit experiment is replaced by red light
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Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If the sodium light in Young’s double slit experiment is replaced by red light
- If the volume of a block of aluminium is decreased by 1%, the pressure
- The weight of a body on surface of earth is 12.6 N. When it is raised to a height
- A mixture consists of two radioactive materials A₁ and A₂ with half lives of 20s
- An open knife edge of mass 200g is dropped from height 5m on a cardboard
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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