Physics

# If error in measuring the distance of a planet from sun is 0.4% and in measuring the mass of sun is 0.6% , then error in measuring the time period of planet around the sun is

1.8%

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Single Correct Hard Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 218

#### Realted Questions

Q1 TRUE/FALSE Medium
State if the following statements are true or false. Correct the statement if it is false.
The error in reading a scale due to the wrong positioning of the eye is called human error.
• A. True
• B. False

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Subjective Medium
The distance of a galaxy is $56 \times10^{25}m$. Assume the speed of light to be $3\times10^8 m s^{-1}$. Express order of magnitude of time taken by light travelled to the galaxy.

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
The dimensional equation for magnetic flux is:
• A. ${ ML }^{ 2 }{ T }^{ -2 }{ I }^{ -1 }$
• B. ${ ML }^{ 2 }{ T }^{ -2 }{ I }^{ -2 }$
• C. ${ ML }^{ -2 }{ T }^{ -2 }{ I }^{ -1 }$
• D. ${ ML }^{ 2 }{ T }^{ -2 }{ I }^{ 2 }$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
Four pieces of wooden sticks P, Q, R and S are placed along the length of 15 cm long scale as shown in figure. What is the average length of these sticks?
• A. 2.0 c
• B. 2.5 cm
• C. 2.6 cm
• D. 2.9 cm

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Single Correct Medium
The velocity $v$ of a particle at time$t$ is given by $\displaystyle v = at + \frac {b} {t + c}$ where $a, b$ and $c$ are constants. The dimensions of $a, b$ and $c$ are respectively :
• A. $LT^{-2}\, , L$ and $\displaystyle T$
• B. $L^{2}\, , T$ and $\displaystyle LT^{2}$
• C. $LT^{2}\, , LT$ and $\displaystyle L$
• D. $L\, , LT$ and $\displaystyle T^{2}$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020