Chapter Chosen

પરમાણુઓ

Book Chosen

ભૌતિક વિજ્ઞાન ધોરણ 12 સેમિસ્ટર 4

Subject Chosen

ભૌતિક વિજ્ઞાન

Book Store

Download books and chapters from book store.
Currently only available for
CBSE Gujarat Board Haryana Board

Previous Year Papers

Download the PDF Question Papers Free for off line practice and view the Solutions online.
Currently only available for
Class 10 Class 12

પરમાણુઓ

હાઈડ્રોજન પરમાણુમાં ઈલેક્ટ્રોન n = n₁ માંથી n = n₂ કક્ષામાં સંક્રાંતિ કરે છે. પ્રારંભિક સ્થિતિમાં અવર્તકાળ અંતિમ સ્થિતિના આવર્તકાળ કરતાં 8 ગણો છે, તો n₁ અને n₂ ના શક્ય મૂલ્યો............

$bold n subscript bold 1 bold space bold equals bold space bold 8 bold comma bold space bold n subscript bold 2 bold space bold equals bold space bold 1$
$bold n subscript bold 1 bold space bold equals bold space bold 6 bold comma bold space bold n subscript bold 2 bold space bold equals bold space bold 2$
$bold n subscript bold 1 bold space bold equals bold space bold 4 bold comma bold space bold n subscript bold 2 bold space bold equals bold space bold 2$
$bold n subscript bold 1 bold space bold equals bold space bold 8 bold comma bold space bold n subscript bold 2 bold space bold equals bold space bold 2$

X-raysની ભેદનશક્તિ ................ વધારી શકાય.

ફિલામેન્ટમાં પ્રવાહ વધારીને
ફિલામેન્ટમાં પ્રવાહ ઘટાડીને
કેથોડ અને એનોડ વચ્ચે p.d. વધારીને
કેથોડ અને એનોડ વચ્ચે p.d. ઘટાડીને

આકૃતિમાં કુલીજ ટ્યુબમાંથી મળતા X-raysની તીવ્રતા વિરુદ્ધ તરંગલંબાઈનો આલેખ દર્શાવ્યો છે. અહીં મળતી લઘુત્તમ તરંગલંબાઈ

bold lambda subscript bold C

અને

bold K subscript bold alpha

રેખાની તરંગલંબાઈ

bold lambda subscript bold K

છે. જેમ પ્રવેગિત વૉલ્ટેજ વધારવામાં આવે તેમ...................

$bold lambda subscript bold K bold space bold minus bold space bold lambda subscript bold C$ વધે છે.
$bold lambda subscript bold K bold space bold minus bold space bold lambda subscript bold C$ ઘટે છે.
$bold lambda subscript bold K$ વધે છે.
$bold lambda subscript bold K$ ઘટે છે.

હાઈડ્રોજન માટે રીડબર્ગ અચળાંક R ના રૂપમાં લાઈમન શ્રેણીની પ્રથમ રેખા માટે તરંગસંખ્યા .................... છે.

$bold R over bold 4$
$fraction numerator bold 3 bold R over denominator bold 4 end fraction$
3R
2R

હાઈડ્રોજન પરમાણુ માટે રીડબર્ગ અચળાંક R જણાવો.

$bold R bold space bold equals bold space bold minus open parentheses fraction numerator bold 1 over denominator bold 4 bold πε subscript bold 0 end fraction close parentheses bold space fraction numerator bold 2 bold pi to the power of bold 2 bold me to the power of bold 2 over denominator bold ch to the power of bold 2 end fraction$
$bold R bold space bold equals bold space open parentheses fraction numerator bold 1 over denominator bold 4 bold πε subscript bold 0 end fraction close parentheses bold space fraction numerator bold 2 bold pi to the power of bold 2 bold me to the power of bold 2 over denominator bold ch to the power of bold 2 end fraction$
$bold R bold space bold equals bold space open parentheses fraction numerator bold 1 over denominator bold 4 bold πε subscript bold 0 end fraction close parentheses to the power of bold 2 bold space fraction numerator bold 2 bold pi to the power of bold 2 bold me to the power of bold 4 over denominator bold ch to the power of bold 3 end fraction$
$bold R bold space bold equals bold space open parentheses fraction numerator bold 1 over denominator bold 4 bold πε subscript bold 0 end fraction close parentheses to the power of bold 2 bold space fraction numerator bold 2 bold pi to the power of bold 2 bold me to the power of bold 4 over denominator bold ch to the power of bold 3 end fraction$

bold R bold space bold equals bold space open parentheses fraction numerator bold 1 over denominator bold 4 bold πε subscript bold 0 end fraction close parentheses to the power of bold 2 bold space fraction numerator bold 2 bold pi to the power of bold 2 bold me to the power of bold 4 over denominator bold ch to the power of bold 3 end fraction

Tips: -

bold R bold space bold equals bold space fraction numerator bold me to the power of bold 4 over denominator bold 8 bold epsilon subscript bold 0 superscript bold 2 bold space bold ch to the power of bold 3 end fraction bold space bold equals bold space fraction numerator bold 2 bold pi to the power of bold 2 over denominator bold 2 bold pi to the power of bold 2 end fraction bold space open parentheses fraction numerator bold me to the power of bold 4 over denominator bold 8 bold space bold epsilon subscript bold 0 superscript bold 2 bold space bold ch to the power of bold 3 end fraction close parentheses bold space bold equals bold space fraction numerator bold 2 bold space bold pi to the power of bold 2 bold space bold me to the power of bold 4 over denominator bold 16 bold space bold pi to the power of bold 2 bold space bold epsilon subscript bold 0 superscript bold 2 bold space bold ch to the power of bold 3 end fraction bold space bold equals bold space open parentheses fraction numerator bold 1 over denominator bold 4 bold πε subscript bold 0 end fraction close parentheses to the power of bold 2 bold space fraction numerator bold 2 bold pi to the power of bold 2 bold me to the power of bold 4 over denominator bold ch to the power of bold 3 end fraction

Switch