Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
95 views
in Physics by (91.3k points)
closed by
न्यौताओं की किस गतिज ऊर्जा के लिए डी-ब्रॉक्ली तरंगदैघ्र्य `1*40 xx 10^(-10)m `होगा | डी - ब्रॉक्ली तरंगदैघ्र्य ज्ञात कीजिय | ?

1 Answer

0 votes
by (90.7k points)
selected by
 
Best answer
दिया है : `k = 1*38 xx 10^(-23)" JK"^(-1)`
`lamda = h/sqrt(2mh)`
या `k= h^2/(2 m lamda^2)= ((6*63 xx 10^(-34))^2)/(2xx1*677 xx 10^(-27)xx(1*4 xx 10^(-10))^2)= 6*686 xx 10^(-21)J`
`=(6*686 xx 10^(-21))/(1*56 xx 10^(-19)) eV`
`=4*179 xx 10^(-2) eV`

Related questions

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...