ExamBro
ExamBro
enEnglishhiहिन्दीguગુજરાતી
JEE Mains · Physics · STD 12 - 11. Dual nature of radiation and matter

\(27^{\circ} C\) તાપમાને ઓક્સિજન અણુની દ બ્રોગ્લી તરંગલંબાઈ \(x \times 10^{-12} m\) છે. \(x\) નું મૂલ્ય શોધો. (પ્લાન્કનો અચળાંક \(=6.63 \times 10^{-34} J . s\), બોલ્ટ્ઝમેન અચળાંક \(=1.38 \times 10^{-23} J / K\), ઓક્સિજન અણુનું દળ \(\left.=5.31 \times 10^{-26} kg\right)\) લો.)

  1. A 26
  2. B 24
  3. C 30
  4. D 20
Verified Solution

Answer & Solution

Correct Answer

(A) 26

Step-by-step Solution

Detailed explanation

\( \lambda=\frac{h}{\sqrt{2mK}}=\frac{h}{\sqrt{2m(\frac{3}{2}kT)}} \) \( \lambda=\frac{h}{\sqrt{3mkT}} \) \( =\frac{6.63\times10^{-34}}{\sqrt{3\times5.31\times10^{-26}\times1.38\times10^{-23}\times300}} \) \( =2.58\times10^{-11}=25.8\times10^{-12} \) આમ, \( x=26 \)
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app