De-Broglie Wavelength Numerical When K.E. is Given Class-12 Nootan ISC Physics Ch-24 Matter Waves. Step by step solutions of Kumar and Mittal Physics of Nageen Prakashan as council latest prescribe guideline for upcoming exam. Visit official Website CISCE for detail information about ISC Board Class-12 Physics.

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De-Broglie Wavelength Numerical When K.E. is Given Class-12 Nootan ISC Physics Ch-24 Matter Waves

Class-12 Nootan ISC Physics Ch-24 Matter Waves

Que-5: Find the de-Broglie wavelength of a proton of energy 1.0 keV.

Ans- Wavelength

λ = h/√2mk

= 6.6 x 10^-34 / √(2 x 1.7 x 10^-28 x 1 x 10^3 x 1.6 x 10^-19)

= 9 x 10^-10

= 9.0 Å

Que-6: Find the de-Broglie wavelength of a neutron of mass 1.67 x 10^-24 g moving with kinetic energy of 0.04 eV.

Ans- λ = h/√2mk

= 6.6 x 10^-34 / √(2 x 1.67 x 10^-27 x 0.04 x 1.6 x 10^-19)

= 1.43 x 10^-10

= 1.43 Å

–: Matter Waves Numerical Class-12 Nootan ISC Physics Ch-24 ;–

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