EASY
12th ICSE
IMPORTANT
Earn 100

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

Important Questions on Matter Waves

MEDIUM
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 11 - Matter Waves>QUESTIONS>Q 5
Find the de-Broglie wavelength of a neutron of mass 1.67×10-24 g moving with kinetic energy of 0.04 eV.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 11 - Matter Waves>QUESTIONS>Q 6
Calculate de-Broglie wavelength of electrons of speed 0.5 km s-1.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 11 - Matter Waves>QUESTIONS>Q 7
Calculate the de-Broglie wavelength of an electron beam accelerated through a potential difference of 60 V.
MEDIUM
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 11 - Matter Waves>QUESTIONS>Q 8
In a diode valve, the anode has a potential of 100 V relative to the cathode. Find the de-Broglie wavelength of electrons on reaching the anode.
MEDIUM
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 11 - Matter Waves>QUESTIONS>Q 9
Calculate de-Broglie wavelength of an electron of energy 400 eV.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 11 - Matter Waves>QUESTIONS>Q 10
What potential must be applied to an electron microscope to produce electrons of wavelength 1.0 Ao?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 11 - Matter Waves>For DIFFERENT COMPETITIVE EXAMINATIONS>Q 1
A particle of mass 1 mg has the same wavelength as an electron moving with a velocity of 3×106 ms-1. The velocity of the particle is:
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 11 - Matter Waves>For DIFFERENT COMPETITIVE EXAMINATIONS>Q 2
The de-Broglie wavelength of a neutron in thermal equilibrium with heavy water at a temperature T (kelvin) and mass m, is: