Electron, Photon, Photo-electric Effect and X-Rays JEE physics - Electron, Photon, Photo-electric Effect and X-Rays

• A
  $6.2 \times 10^{-11}$
• B
  $16 \times 10^{-9}$
• ✓
  $16 \times 10^{-11}$
• D
  $16 \times 10^{-13}$

Answer: C.

• A
  $V$
• B
  $Z$
• C
  $(Z-1)$
• ✓
  $(Z-1)^2$

Answer: D.

• A
  Does not change
• B
  Decreases by a factor of $4$
• ✓
  Increases by a factor of $4$
• D
  Decreases by a factor of $2$

Answer: C.

• A
  $0.168 \mathrm{eV}$
• ✓
  $16.8 \mathrm{eV}$
• C
  $1.68 \mathrm{eV}$
• D
  $2.5 \mathrm{eV}$

Answer: B.

• A
  $\sqrt{E}$
• ✓
  $1 / \sqrt{E}$
• C
  $1 / E$
• D
  Does not depend upon $E$

Answer: B.