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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: - For photoelectric emission from certain metal the cut-off frequency is v
- A parallel plate air capacitor is charged to a potential difference of V volts.
- A circular coil of radius 10cm and 100 turns carries a current 1 A.
- A heavy nucleus at rest breaks into two fragments which fly off with velocities
- A bus is moving with a velocity of 5 ms⁻¹ towards a huge wall.
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For photoelectric emission from certain metal the cut-off frequency is v
- A parallel plate air capacitor is charged to a potential difference of V volts.
- A circular coil of radius 10cm and 100 turns carries a current 1 A.
- A heavy nucleus at rest breaks into two fragments which fly off with velocities
- A bus is moving with a velocity of 5 ms⁻¹ towards a huge wall.
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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