Physics

# With due regard to significant figure, add the following. 953 and 0.625

##### SOLUTION

You're just one step away

Subjective Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 218

#### Realted Questions

Q1 Single Correct Medium
The number of particles crossing a unit area perpendicular to the x-axis in a unit area perpendicular to the $x - axis$ in a unit time is given by $n= -D\left(\dfrac{n_2 - n_1}{x_2 - x_1}\right)$, where $n_1$ and $n_2$ are the number of particles per unit volume at $x = x_1$ and $x = x_2$, respectively, and D is the diffusion constant. The dimensions of D are
• A. $[M^0LT^{-2}]$
• B. $[M^0L^2T^{-4}]$
• C. $[M^0L^2T^{-2}]$
• D. $[M^0L^2T^{-1}]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Subjective Medium
Find the dimensions of pressure.

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
Express the speed $36 km h^{-1}$ in $m s^{-1}$.
• A. $3600 m s^{-1}$
• B. $10 m s^{-1}$
• C. $0.6 m s^{-1}$
• D. $36 m s^{-1}$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
If the unit of length is quadrupled and that of force is doubled, the unit of power increases to ___times.
• A. 8
• B. 4
• C. 2
• D. 16

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Single Correct Medium
The equation of state of some gases can be expressed as $\displaystyle \left(P + \frac {a}{V^{2}} \right) \displaystyle (V -b ) = RT$, where $P$ is the pressure, $V$ is the volume, $T$ is the absolute temperature , and $a$, $b$ and $R$ are constants. The dimensions of '$a$' are
• A. $[ML^5 T^{-2}]$
• B. $[ML^{-1} T^{-2}]$
• C. $[L^3]$
• D. $[L^6]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020