De-Broglie Wavelength Numerical When p or v is Given Class-12 Nootan ISC Physics Solution 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.
De-Broglie Wavelength Numerical When p or v is Given Class-12 Nootan ISC Physics Solution Ch-24 Matter Waves
| Board | ISC |
| Class | 12 |
| Subject | Physics |
| Book | Nootan |
| Chapter-24 | Matter Waves |
| Topics | Numericals on De-Broglie Wavelength When p or v is Given |
| Academic Session | 2025-2026 |
Numericals on De-Broglie Wavelength When p or v is Given
Class-12 Nootan ISC Physics Solution Ch-24 Matter Waves
Que-1: What is de-Broglie wavelength of a 2 kg object moving at a speed of 1 m/s ?
Ans- De Broglie wavelength
λ = h/√2mk = h/mv
λ = 6.6 x 10^-34 / 2 x 1
= 3.3 x 10^-34 m
Que-2: Calculate de-Broglie wavelength of a proton of momentum 2.55 x 10-22 kg ms-1.
Ans- wavelength
λ = h/mv = h/p
λ = 6.6 x 10^-34 / 2.55 x 10^-22
= 2.59 x 10^-12
Que-3; A moving particle has a de-Broglie wavelength of 1.0 Å. What is the momentum of the particle?
Ans- Momentum p = mv = h/λ
= 6.6 x 10^-34 / 1 x 10^-10
= 6.6 x 10^-24 Kg m/s
Que-4: Calculate de-Broglie wavelength of electrons of speed 0.5 km/s.
Ans- Wavelength
λ = h/mv
= 6.6 x 10^-34 / 9 x 10^-31 x 0.5 x 10^3
= 1.45 x 10^-6 m
–: De-Broglie Wavelength Numerical When p or v is Given Class-12 Nootan ISC Physics Solution :–
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