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1.Units, Dimensions and Measurement
medium
Dimensional formula for latent heat is
A${M^0}{L^2}{T^{ - 2}}$
B$ML{T^{ - 2}}$
C$M{L^2}{T^{ - 2}}$
D$M{L^2}{T^{ - 1}}$
(IIT-1983)
Solution
a) $Q = mL \Rightarrow L = \frac{Q}{m}$ (Heat is a form of energy)
= $\frac{{M{L^2}{T^{ – 2}}}}{M} = [{M^0}{L^2}{T^{ – 2}}]$
= $\frac{{M{L^2}{T^{ – 2}}}}{M} = [{M^0}{L^2}{T^{ – 2}}]$
Standard 11
Physics
Similar Questions
Match List $I$ with List $II$
| List $I$ | List $II$ |
| $A$ Spring constant | $I$ $(T ^{-1})$ |
| $B$ Angular speed | $II$ $(MT ^{-2})$ |
| $C$ Angular momentum | $III$ $(ML ^2)$ |
| $D$ Moment of Inertia | $IV$ $(ML ^2 T ^{-1})$ |
Match List$-I$ with List$-II.$
| List$-I$ | List$-II$ |
| $(a)$ Torque | $(i)$ ${MLT}^{-1}$ |
| $(b)$ Impulse | $(ii)$ ${MT}^{-2}$ |
| $(c)$ Tension | $(iii)$ ${ML}^{2} {T}^{-2}$ |
| $(d)$ Surface Tension | $(iv)$ ${ML} {T}^{-2}$ |
Choose the correct match
| List I | List II |
|---|---|
| $(i)$ Curie | $(A)$ $ML{T^{ – 2}}$ |
| $(ii)$ Light year | $(B)$ $M$ |
| $(iii)$ Dielectric strength | $(C)$ Dimensionless |
| $(iv)$ Atomic weight | $(D)$ $T$ |
| $(v)$ Decibel | $(E)$ $M{L^2}{T^{ – 2}}$ |
| $(F)$ $M{T^{ – 3}}$ | |
| $(G)$ ${T^{ – 1}}$ | |
| $(H)$ $L$ | |
| $(I)$ $ML{T^{ – 3}}{I^{ – 1}}$ | |
| $(J)$ $L{T^{ – 1}}$ |
