Physics

# If the percentage error in the surface area of sphere is $k$, then the percentage error in its volume is

$\dfrac{3k}{2}$

You're just one step away

Single Correct Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 203

#### Realted Questions

Q1 Single Correct Medium
Dimensions of coefficient of viscosity is
• A. $\left [MT^{2}\right ]$
• B. $\left [ML^{-3} T^{-4}\right ]$
• C. $\left [ML^{-1} T^{-2}\right ]$
• D. $\left [ML^{-1} T^{-1}\right ]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Single Correct Hard
With due regard to significant figures, add the following:
a. 953 and 0.324
b. 953 and 0.625
c. 953.0 and 0.324
d. 953.0 and 0.374
• A. a. $953$; b. $954$ c. $953.3$ d. $953.4$
• B. a. $953$; b. $955$ c. $953.3$ d. $953.4$
• C. a. $952$; b. $954$ c. $953.3$ d. $953.4$
• D. a. $953$; b. $954$ c. $953.3$ d. $952.4$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
Pressure P varies as $P=\dfrac{\alpha}{\beta}$ exp$(\dfrac{-\alpha}{K_B \theta}Z)$ where Z denotes distance,$K_B$ Boltzman's constant,$\theta$ absolute temperature and $\alpha,\beta$ are constants.Derive the dimensions of $\beta$
• A. $[M^{-1} L T^{-2}]$
• B. $[M^0 L^0 T^0]$
• C. $[M^0 L^2 T^0]$
• D. $[M^0 L^{-1} T^{-2}]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
Which of the following is the most precise instrument for measuring length ?
• A. Metre rod of least count $0.1$ cm
• B. Vernier calipers of least count $0.01$ cm
• C. Screw gauge of least count $0.001$ cm
• D. None of these

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Single Correct Medium
1 $\mathring{A}$ is equal to :
• A. $0.1$ nm
• B. $10^{-10}$ cm
• C. $10^{-8} m$
• D. $10^{-4} \mu$.

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020