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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 which of the following systems will the radius of the first orbit (n=1) be minimum?
- A solid sphere of mass M, radius R and having moment of inertia about an axis passing
- In which case positive work has to be done in seperating them?
- A transistor is working in common emitter mode. Its amplification factor is 80
- In potentiometer experiment, a cell of emf 1.25V gives balancing length of 30 cm
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In which of the following systems will the radius of the first orbit (n=1) be minimum?
- A solid sphere of mass M, radius R and having moment of inertia about an axis passing
- In which case positive work has to be done in seperating them?
- A transistor is working in common emitter mode. Its amplification factor is 80
- In potentiometer experiment, a cell of emf 1.25V gives balancing length of 30 cm
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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