Dual Nature of ...

One electron and one proton is accelerated by equal potential. Ratio in their de-Broglie wavelengths is

The de-Broglie wavelength of a proton (charge = 1.6 × 10^-19 C, mass = 1.6 × 10^-27 kg), accelerated through a potential difference of 1 kV is

Monochromatic light of frequency 6.0 × 10⁴ Hz is produced by a laser. The power emitted is 2 × 10^-3W. The number of photons emitted, on the average, by the source per second is

If n_R and n_V denote the number of photons emitted by a red bulb and violet bulb of equal power in a given time, then

The radio transmitter operates on a wavelength of 1500 m at a power of 400 kW. The energy of radio photon (in joule) is

The kinetic energy of an electron, which is accelerated in the potential difference of 100 V, is

An electron initially at rest is accelerated through a potential difference of 1V. The energy acquired by electron is

The energy that should be added to an electron to reduce its de-Broglie wavelength from 1 nm to 0.5 nm is

An electron and a neutron can have same (i) kinetic energy, (ii) momentum, or (iii) speed. Which particle has the shorter de–Broglie wavelength?