JEE Mains · Physics · STD 11 - 1. units,dimensions and measurement
The dimensional formula of latent heat is _______.
- A \(\left[\mathrm{M}^0 \mathrm{LT}^{-2}\right]\)
- B \(\left[\mathrm{MLT}^{-2}\right]\)
- C \(\left[M^0 L^2 T^{-2}\right]\)
- D \(\left[\mathrm{ML}^2 \mathrm{~T}^{-2}\right]\)
Answer & Solution
Correct Answer
(C) \(\left[M^0 L^2 T^{-2}\right]\)
Step-by-step Solution
Detailed explanation
Latent heat is specific heat \(\Rightarrow \frac{\mathrm{ML}^2 \mathrm{~T}^{-2}}{\mathrm{M}}=\mathrm{M}^0 \mathrm{~L}^2 \mathrm{~T}^{-2}\)
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 nucleus at rest disintegrates into two smaller nuclei with their masses in the ratio of \(2: 1\). After disintegration they will move :-JEE Mains 2024 Hard
- A sinusoidal voltage of peak value \(250\, V\) is applied to a series \(LCR\) circuit, in which \(R =8 \Omega, L =24\, mH\) and \(C =60 \mu F\). The value of power dissipated at resonant condition is \('x'\, kW\). The value of \(x\) to the nearest integer is .............JEE Mains 2021 Medium
- At some location on earth the horizontal component of earth’s magnetic field is \(18\times10^{-6}\,T\). At this location, magnetic needle of length \(0.12\, m\) and pole strength \(1.8\, A\,m\) is suspended from its mid-point using a thread, it makes \(45^o\) angle with horizontal in equilibrium. To keep this needle horizontal, the vertical force that should be applied at one of its ends isJEE Mains 2019 Medium
- A particle is released on a vertical smooth semicircular track from point \(X\) so that \(OX\) makes angle \(\theta \) from the vertical ( see figure). The normal reaction of the track on the particle vanishes at point \(Y\) where \(OY\) makes angle \(\phi \) with the horizontal. Then
JEE Mains 2014 Hard - What is the conductivity of a semiconductor sample having electron concentration of \(5 \times 10^{18}\, m^{-3}\), hole concentration of \(5 \times 10^{19}\, m^{-3}\), electron mobility of \(2 .0\, m^2\, v^{-1}\, s^{-1}\) and hole mobility of \(0.01\, m^2\, v^{ -1}\, s^{-1}\) ?........\({\left( {\Omega - m} \right)^{ - 1}}\) (Take charge of electron as \(1.6 \times 10^{-19}\, C\))JEE Mains 2017 Medium
- Hysteresis loops for two magnetic materials \(A\) and \(B\) are given below These materials are used to make magnets for elecric generators, transformer core and electromagnet core. Then it is proper to use
JEE Mains 2016 Easy
More PYQs from JEE Mains
- A complex number z is said to be unimodular if \(\left| z \right| = 1\) . Suppose \(z_1\) and \(z_2\) are complex number such that \(\frac{{{z_1} - 2{z_2}}}{{2 - {z_1}\overline {{z_2}} }}\) is unimodular and \(z_2\) is not unimodular . Then the point \(z_1\) lies on a:JEE Mains 2015 Hard
- If in a parallelogram \(ABDC\), the coordinates of \(A, B\) and \(C\) are respectively \((1, 2), (3, 4)\) and \((2, 5)\), then the equation of the diagonal \(AD\) isJEE Mains 2019 Hard
- A conducting circular loop is rotated about its diameter at a constant angular speed of 100 rad/s in a magnetic field of 0.5 T perpendicular to the axis of rotation. When the loop is rotated by 30° from the horizontal position, the induced EMF is 15.4 mV. The radius of the loop is ________ mm. (Take \( \pi=22/7 \))JEE Mains 2026 Easy
- The refractive index of prism is \(\mu=\sqrt{3}\) and the ratio of the angle of minimum deviation to the angle of prism is one. The value of angle of prism is _______ \(^\circ\).JEE Mains 2024 Hard
- One vertex of a rectangular parallelopiped is at the origin \(O\) and the lengths of its edges along \(x , y\) and \(Z\) axes are \(3,4\) and \(5\) units respectively. Let \(P\) be the vertex \((3,4,5)\). Then the shortest distance between the diagonal \(OP\) and an edge parallel to \(Z\) axis, not passing through \(O\) or \(P\) is:JEE Mains 2023 Hard
- Let \(\vec{c}\) be the projection vector of \(\vec{b}=\lambda \hat{i}+4 \hat{k}, \lambda\gt0\), on the vector \(\vec{a}=\hat{i}+2 \hat{j}+2 \hat{k}\). If \(|\vec{a}+\vec{c}|=7\), then the area of the parallelogram formed by the vectors \(\vec{b}\) and \(\vec{c}\) is ________JEE Mains 2025 Medium