NEET 2025 — Physics PYQ Quiz Electric Dipole • Bohr Model • Gravitation • Kepler • Central Force • Ideal Gas — Select an option and click Check Answer for each question. Use Check All for your score. 1. An electric dipole with dipole moment p = 5 × 10⁻² C·m is aligned with a uniform electric field of magnitude E = 4 × 10⁵ N/C. The dipole is rotated through 60° with respect to the field. The change in potential energy of the dipole is: A) 0.8 J B) 1.0 J C) 1.2 J D) 1.5 J Check Answer 2. De-Broglie wavelength of an electron orbiting in the n = 2 state of hydrogen atom is close to (Bohr radius = 0.052 nm): A) 0.067 nm B) 0.67 nm C) 1.67 nm D) 2.67 nm Check Answer 3. A body weighs 48 N on the surface of the Earth. The gravitational force on it at a height equal to one-third the radi...