COMEDK · Physics · 7. Center of Mass Momentum and Collision
For a polar molecule, which of the following statements is true?
- A The centre of gravity of electrons and protons coincide.
- B The centre of gravity of electrons and protons do not coincide.
- C The charge distribution is always symmetrical.
- D The dipole moment is always zero.
Answer & Solution
Correct Answer
(B) The centre of gravity of electrons and protons do not coincide.
Step-by-step Solution
Detailed explanation
In a polar molecule, the centre of gravity of electrons and protons do not coincide.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- A tuning fork of unknown frequency produces 4 beats with tuning fork of frequency \(310 \mathrm{~Hz}\). It gives the same number of beats on filing. The initial frequency of a tuning fork isCOMEDK 2024 Medium
- A metal rod of susceptibility 799 is subjected to a magnetising field of \(2000 \mathrm{Am}^{-1}\). The permeability of the material of the rod is: (Given \(\mu_0=4 \pi \times 10^{-7} \mathrm{TmA}^{-1}\) )COMEDK 2025 Easy
- A glass hemisphere of radius \(0.1 \mathrm{~cm}\) and refractive index \(1.5\) is placed over a spot on a table and the spot is viewed from above. The spot appears to be
COMEDK 2012 Hard - A wire has a resistance of \(6 \Omega\). It is cut into two parts and both half values are connected in parallel. The new resistance isCOMEDK 2019 Easy
- In an adiabatic process with the ratio of two specific heat, \(\gamma=\dfrac{3}{2}\), pressure is increased by \(\dfrac{2}{3} \%\), then decrease in the volume will beCOMEDK 2021 Medium
- A beam of light of wavelength \(600 \mathrm{~nm}\) from a distant source falls on a single slit \(1 \mathrm{~mm}\) wide and the resulting diffraction pattern is observed on a screen \(2 \mathrm{~m}\) away. The distance between the first dark fringes on either side of the central bright fringe isCOMEDK 2019 Hard
More PYQs from COMEDK
- If the matrix \(M = \begin{bmatrix} x+5 & a & -4 \\ -2 & 0 & b \\ c & 6 & y+1 \end{bmatrix}\) is a skew symmetric matrix, the value of the expression \(ab + c^2 - xy\) is:COMEDK 2026 Easy
- \(\mathrm{KMnO}_4\) acts as an oxidising agent in acidic medium. The number of moles of \(\mathrm{KMnO}_4\) that will be required to react with one mole of oxalate ions (to form \(\mathrm{CO}_2\) ) in acidic solution isCOMEDK 2022 Medium
- A point marked on a ring of radius 2 cm is in contact with a horizontal plane. Now the ring is rolled forward half a revolution along the positive X - direction. Then the angle made by the displacement vector of the point with the X - axis is:COMEDK 2025 Medium
- If voltage across a bulb rated \(220 \mathrm{~V}, 50 \mathrm{~W}\) drops by \(5 \%\) of its rated value, the percentage of the rated value by which the power would decrease isCOMEDK 2025 Medium
- When one mole of a hydrocarbon \(\mathbf{C}_{\mathbf{a}} \mathbf{H}_{\mathbf{b}}\) undergoes complete combustion, it requires 7.5 moles of \(\mathrm{O}_2\) and results in the production of 6 moles of \(\mathrm{CO}_2\). Calculate the values of \(\mathbf{a}\) and \(\mathbf{b}\).COMEDK 2025 Medium
- \(\int_{0}^{\pi / 8} \cos ^{3} 4 \theta d \theta\) is equal toCOMEDK 2013 Easy