JEE Main 2007 — Modern Physics

Carbon, silicon and germanium have four valence electrons each. At room temperature which one of the following statements is most appropriate?

Photon of frequency $\mathrm{v}$ has a momentum associated with it. If $\mathrm{c}$ is the velocity of light, the momentum is

If $\mathrm{M_o}$ is the mass of an oxygen isotope $\mathrm{{ }_8 O^{17}, M_p}$ and $\mathrm{M_N}$ are the masses of a proton and a neutron respectively, the nuclear binding energy of the isotope is

Which of the following transitions in hydrogen atoms emit photons of highest frequency?

If in a $\mathrm{p-n}$ junction diode, a square input signal of $10 \mathrm{~V}$ is applied as shown   Then the output signal across $R_{\mathrm{L}}$ will be