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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
- In a given reaction, ᴢXᴬ → ᴢ+1Yᴬ → ᴢ-1Kᴬ⁻⁴ → ᴢ-1Kᴬ⁻⁴
- In an inductor when current changes from 2 A to 18 A in 0.05 sec, the e.m.f. induced
- A particle falls towards earth from infinity. Its velocity on reaching the earth
- A thin prism of angle 15⁰ made of glass of refractive index µ₁ = 1.5 is combined
- If the value of potential in an A.C circuit is 10 V, the peak value of potential is
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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