Practice Problems in Physics

The dimension of stopping potential \(V_0\) in photoelectric effect in units of Planck's constant \(h\), speed of light \(c\), Gravitational constant \(G\) and ampere \(A\) is:

1. \(h^2Gc^{-5}A^{-1}\)
2. \(h^\frac{1}{3}G^{\frac{2}{3}}c^{\frac{1}{3}}A^{-1}\)
3. \(h^\frac{2}{3}G^{\frac{1}{3}}c^{\frac{5}{3}}A^{-1}\)
4. \(h^\frac{-2}{3}G^{\frac{4}{3}}c^{\frac{-1}{3}}A^{-1}\)