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Recent questions tagged energy-quantum-of-radiation

The energy of a photon is equal to the KE of a proton. The energy of the photon is E. Let $ \lambda_1$ be the de- Broglie wavelength of the proton and $ \lambda_2$ be the wavelength of the photon. So, $\large\frac{\lambda_1}{\lambda_2}$ is

asked Dec 31, 2013 by thanvigandhi_1

1 answer

A radiation of energy $E$ falls normally on a perfectly reflecting surface. The momentum transferred to the surface

asked Dec 30, 2013 by thanvigandhi_1

1 answer

A monoenergetic electron beam with speed of $ 5.2 \times 10^6\: m/s$ is subjected to a magnetic field of $1.3 \times 10^{-4}T$ normal to the beam velocity. What is the radius of the circle traced by the beam, given $ \large\frac{e}{m}$ for electron equals $1.76 \times 10^{11}C /kg$?

asked Dec 30, 2013 by thanvigandhi_1

1 answer

Consider two light sources of wavelengths $ \lambda_1\: and\: \lambda_2 (\lambda_1 > \lambda_2)$ which are emitting $n_1\: and \: n_2$ photons respectively, in a given time. Assume equal power for both sources, then

asked Dec 24, 2013 by thanvigandhi_1

1 answer

The work function for a certain metal is $4.2 eV$. Will this metal give photoelectric emission for incident radiation of wavelength $589 nm$?

asked Dec 23, 2013 by thanvigandhi_1

1 answer

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