List of top Physics Questions on Photon and Matter Waves

A beam of red light and a beam of blue light have equal intensities. Which of the following statements is true?

Which of the following is chargeless particle?

If c is the velocity of light in free space, the correct statements about photon among the following are:
A. The energy of a photon is E = hν.
B. The velocity of a photon is c.
C. The momentum of a photon, \(p=\frac{hv}{c}\).
D. In a photon-electron collision, both total energy and total momentum are conserved.
E. Photon possesses positive charge.
Choose the correct answer from the options given below:

The number of photons per second on average emitted by the source of monochromatic light of wavelength 600 nm, when it delivers the power of 3.3×10⁻³ watt will be : (h=6.6×10⁻³⁴ Js)

An electron is accelerated through a potential difference of \(10,000 V\). Its de Broglie wavelength is, (nearly): \((m_e=9\times10^{-31} kg) \)