Class 11 Exam  >  Class 11 Questions  >  Calculate the wavelength of an electron whose... Start Learning for Free
Calculate the wavelength of an electron whose kinetic energy is 3(10*25) J and mass is 9.1(10*-31) kg?
Verified Answer
Calculate the wavelength of an electron whose kinetic energy is 3(10*2...
Because in case of (b) velocity is depend on other two quantities. So sets (b) cannot enter into the list of fundamental quantities in any system of units.The wavelength will be calculated from the De Broglie's relation which is λ = h/ (mxv)where λ is the wavelength, h is the planck's constant, m is the mass of the electron and v is its velocity. For calculating the velocity, we will use the expression E = 1/2 mv^2We are given that E = 3 x 10^-25J. Therefore we get v^2 = 2 x E /mOn substituting the values, we get v = 8.12 x 10^2Hence λ = h/ (mxv) = 6.63 x 10^-34/(9.1 x 10^-31 x8.12 x 10^2) = 8.972 x 10^-7mHence the wavelength of the electron will be 8.972 x 10^-7m
This question is part of UPSC exam. View all Class 11 courses
Most Upvoted Answer
Calculate the wavelength of an electron whose kinetic energy is 3(10*2...
Wavelength = 8.99 × 10^-7m1stlyfrom the rel, KE=1/2mv^2find value of vthat comes out to be 8.1×10^2 ms^-1then by using relλ=h/mvλ= 8.99 × 10^-7m....(^_^)?
Community Answer
Calculate the wavelength of an electron whose kinetic energy is 3(10*2...
Plz explain the procedure
Attention Class 11 Students!
To make sure you are not studying endlessly, EduRev has designed Class 11 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 11.
Explore Courses for Class 11 exam

Top Courses for Class 11

Calculate the wavelength of an electron whose kinetic energy is 3(10*25) J and mass is 9.1(10*-31) kg?
Question Description
Calculate the wavelength of an electron whose kinetic energy is 3(10*25) J and mass is 9.1(10*-31) kg? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Calculate the wavelength of an electron whose kinetic energy is 3(10*25) J and mass is 9.1(10*-31) kg? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Calculate the wavelength of an electron whose kinetic energy is 3(10*25) J and mass is 9.1(10*-31) kg?.
Solutions for Calculate the wavelength of an electron whose kinetic energy is 3(10*25) J and mass is 9.1(10*-31) kg? in English & in Hindi are available as part of our courses for Class 11. Download more important topics, notes, lectures and mock test series for Class 11 Exam by signing up for free.
Here you can find the meaning of Calculate the wavelength of an electron whose kinetic energy is 3(10*25) J and mass is 9.1(10*-31) kg? defined & explained in the simplest way possible. Besides giving the explanation of Calculate the wavelength of an electron whose kinetic energy is 3(10*25) J and mass is 9.1(10*-31) kg?, a detailed solution for Calculate the wavelength of an electron whose kinetic energy is 3(10*25) J and mass is 9.1(10*-31) kg? has been provided alongside types of Calculate the wavelength of an electron whose kinetic energy is 3(10*25) J and mass is 9.1(10*-31) kg? theory, EduRev gives you an ample number of questions to practice Calculate the wavelength of an electron whose kinetic energy is 3(10*25) J and mass is 9.1(10*-31) kg? tests, examples and also practice Class 11 tests.
Explore Courses for Class 11 exam

Top Courses for Class 11

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev