Indian Navy 10+2 B.Tech Cadet Dual Nature of Radiation and Matter — practice questions

Explore 2 free Dual Nature of Radiation and Matter questions in Indian Navy 10+2 B.Tech Cadet Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Dual Nature of Radiation and Matter questions and exercises with answers

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For very slow electron (low momentum), de Broglie wavelength is:Read the answer and worked solution →Order the steps of EM wave generation by an accelerating chargeRead the answer and worked solution →

Worked practice questions

For very slow electron (low momentum), de Broglie wavelength is:

Zero
Very small
Doesn't apply
Very LARGE (λ = h/p; small p → large λ)

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Correct answer: D. Very LARGE (λ = h/p; small p → large λ)

λ = h/p. Slow particle → large λ. Electrons at thermal speeds have λ ~ atomic dimensions, making electron diffraction observable (Davisson-Germer 1927).

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Order the steps of EM wave generation by an accelerating charge

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Steps

Charge accelerates, creating a changing electric field
Changing E-field induces a changing magnetic field
Changing B-field induces a changing E-field further away
The coupled E and B fields propagate outward as a wave
Wave travels in vacuum at c = 3×10⁸ m/s

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