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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: - In nuclear fusion, two nuclei come together to form a large nucleus.
- A body oscillates with amplitude of 10 cm in a horizontal platform.
- A plane wave of wavelength 6250Å is incident normally on a slit of width 2×10⁻² cm.
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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
- In nuclear fusion, two nuclei come together to form a large nucleus.
- A body oscillates with amplitude of 10 cm in a horizontal platform.
- A plane wave of wavelength 6250Å is incident normally on a slit of width 2×10⁻² cm.
- Eight drops of a liquid of density ρ and each of radius a are falling through air
- On heating a ferromagnetic substance above curie temperature
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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