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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
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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
- Two resistors of resistances 2Ω and 6Ω are connected in parallel.
- A disc of moment of inertia (9.8/π²) kg m² is rotating at 600 rpm. If the frequency
- When a string is divided into three segments of length l₁, l₂ and l₃ the fundamental
- A capacitor of 2.5 μF is charged through a resistor of 4 MΩ. In how much time
- A scooter is going round a circular road of radius 100 m at a speed of 10m/s
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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