AP EAMCET · PHYSICS · Units and Dimensions
Which quantity among the following has neither units nor dimensions?
- A Relative velocity
- B Relative density
- C Angle
- D Energy
Answer & Solution
Correct Answer
(B) Relative density
Step-by-step Solution
Detailed explanation
Relative velocity \(\left(v_A \pm v_B\right)\) for two bodies \(A\) and \(B\) has both units \(\left(\mathrm{ms}^{-1}\right)\) and dimensions \(\left[\mathrm{LT}^{-1}\right]\). Relative density of two substances \(\left(\rho=\frac{\rho_A}{\rho_B}\right) A\) and B have no units…
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
- \(n\) conducting wires of same dimensions but having restivities \(1,2,3, . . n\) are connected in series. The equivalent resistivity of the combination isAP EAMCET 2004 Medium
- A particle of mass \(0.4 \mathrm{~kg}\) executes simple harmonic motion of amplitude \(0.4 \mathrm{~m}\). When it passes through the mean position, its kinetic energy is \(256 \times 10^{-3} \mathrm{~J}\). If the initial phase of the oscillation is \(\pi / 4\), then the equation of its motion isAP EAMCET 2021 Medium
- Charge passing through a conductor of cross-section \(0.3 \mathrm{~m}^2\) is given by \(\mathrm{q}=\left(3 \mathrm{t}^2+5 \mathrm{t}+2\right) \mathrm{C}\) where ' \(\mathrm{t}\) ' is in seconds. The drift velocity at \(t=2 \mathrm{~s}\) is
(Concentration of electrons in the conductor \(=2 \times 10^{25} \mathrm{~m}^{-3}\) )AP EAMCET 2023 Medium - An object is in equilibrium when four concurrent forces, acting in the same plane are in the directions shown in the figure.
Find the magnitudes of \(F_1\) and \(F_2\).
AP EAMCET 2021 Medium - A proton and an alpha particle moving with energies in the ratio \(1: 4\) enter a uniform magnetic field of \(3 T\) at right angles to the direction of magnetic field. The ratio of the magnetic forces acting on the proton and the alpha particle isAP EAMCET 2024 Easy
- Gauss's law helps in:AP EAMCET 2021 Easy
More PYQs from AP EAMCET
- If the circles \(x^2+y^2=9\) and \(x^2+y^2-8 x-6 y+n^2=0, n \in \mathbb{Z}\) have exactly two common tangents, then the number of values for \(n\) isAP EAMCET 2017 Medium
- In a \(\triangle A B C\), if \(r_1=12, r_2=18\) and \(r_3=36\), then \(b=\)AP EAMCET 2022 Medium
- Which one of the following ions has same number of unpaired electrons as those present in \(\mathrm{V}^{3+}\) ion?AP EAMCET 2014 Easy
- The percentage of lanthanides and iron, respectively, in misch metal areAP EAMCET 2015 Easy
- Which one of the following sets correctly represents the increase in the paramagnetic property of the ions?AP EAMCET 2009 Easy
- Two slits separated by \(0.5 \mathrm{~mm}\) are illuminated by light of wavelength \(500 \mathrm{~nm}\). The screen is at a distance of \(120 \mathrm{~cm}\) from the slits. The phase difference between the interfering waves at a point \(3 \mathrm{~mm}\) on the screen from the central bright fringe is ........... .AP EAMCET 2017 Medium