NEET · Physics

Units and Dimensions

41 practice questions for NEET — 23 easy · 13 medium · 5 hard. Every question is graded instantly with a step-by-step solution when you miss it.

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Sample questions

MCQ
If $E$ and $G$ respectively denote energy and gravitational constant, then $\frac{E}{G}$ has the dimensions of:
MCQ
Plane angle and solid angle have:
MCQ
Match List - I with List - II : List - I List - II (a) Gravitationalconstant (G) (i) $\left[L^{2}T^{-2}\right]$ (b) Gravitationalpotential energy (ii) $\left[M^{-1}L^{3}T^{-2}\right]$ (c) Gravitationalpotential (iii)…
MCQ
A physical quantity of the dimensions of length that can be formed out of $c,G$ and $\frac{e^{2}}{4\pi\,\epsilon\,_{0}}$,where [$c$ is velocity of light, $G$ is universal constant of gravitation,$e$ is charge…
MCQ
Planck's constant (h), speed of light in a vacuum (c) and Newton's gravitational constant (G) are three fundamental constants. Which of the following combinations of these has the dimension of length?
MCQ
If dimensions of critical velocity, vc of a liquid flowing through a tube are expressed as $\eta$x$\rho$yrz, where, $\eta$, $\rho$ and r are the coefficient of viscosity of liquid, density of liquid and radius of the…
MCQ
A physical quantity of the dimensions of length that can be formed out of \$c,G$ and \$\frac{e^{2}}{4\pi\epsilon_{0}}$, where [\$c$ is velocity of light, \$G$ is universal constant of gravitation, \$e$ is charge &…
MCQ
Match List - I with List - II : List - I List - II (a) Gravitational constant (G) (i) \$[L^{2}T^{-2}]$ (b) Gravitational potential energy (ii) \$[M^{-1}L^{3}T^{-2}]$ (c) Gravitational potential (iii) \$[LT^{-2}]$ (d)…
MCQ
If force F, velocity V and time T are taken as fundamental units, the dimensions of mass are
MCQ
Consider that $\sigma_s$, $k_B$, b represent Stefan-Boltzmann constant, Boltzmann constant and Wien's displacement law constant, respectively. The dimension of $\sigma_s k_B^{-1}b$ is :
MCQ
Each side of a metallic cube of mass $5.580$ kg is measured to be $9.0$ cm. Keeping the significant figures in view, the density of the material of the cube can be best expressed as $X \times 10^{3}$ kg m$^{-3}$, where…
MCQ
The speed of light in vacuum is taken as unity. If light takes $6$ min $40$ s to reach the Earth from the Sun, the distance between the Sun and the Earth in new unit is :
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