MCQ
The dimensions of dipole moment are:
- A[L T A].
- B[L T-1 A-1].
- C[L T A-1].
- DNone.
✓
Answer
- [L T A].
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
An optically active compound
|
(a) Rotates the plane polarised light |
|
(b) Changing the direction of polarised light |
|
(c) Do not allow plane polarised light to pass through |
|
(d) None of the above |
Two lenses are placed in contact with each other and the focal length of combination is 80 cm. If the focal length of one is 20 cm, then the power of the other will be
|
(a) 1.66 D |
(b) 4.00 D |
(c) –1.00 D |
(d) – 3.75 D |
Consider the process on a system shown in figure. During the process, the work done by the system:
- Continuously increases.
- Continuously decreases.
- First increases then decreases.
- First decreases then increases.
If the light moving in a straight line bends by a small but fixed angle, it may be a case of:
A magnetic needle kept parallel to a magnetic field requires a work W to be rotated by 60. The necessary torque required to keep the needle in this position is:
In series L - C - R resonant circuit, to increase the resonant frequency:
Two short magnets of equal dipole moments M are fastened perpendicularly at their centre (figure). The magnitude of the magnetic field at a distance d from the centre on the bisector of the right angle is
|
(a) |
(b) |
(c) |
(d) |
The electrochemical equivalent Z of any element can be obtained by multiplying the electrochemical equivalent of hydrogen with
|
(a) Atomic weight |
(b) Molecular weight |
(c) Chemical equivalent |
(d) A constant |
A wave is represented by the equation-
→$\text{y}=(0.001\text{mm})\sin\Big[(50\text{s}^{-1})\text{t}+(2.0\text{m}^{-1})\text{x}\Big]$
- The wave velocity = 100m/s.
- The wavelength = 2.0m.
- The frequency $=\frac{25}{\pi}\text{Hz}$
- The amplitude = 0.001mm.
An electron having a charge e moves with a velocity v in X-direction. An electric field acts on it in Y-direction? The force on the electron acts in: