Physics

# During zero setting of the above instrument, the end of the cap is on left side of the zero of main scale (Le zero of main scale is not visible)and  division scale coincides with the reference line, the zero error in-

$+0.41 mm$

You're just one step away

Single Correct Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 204

#### Realted Questions

Q1 Single Correct Medium
The dimensions of angular momentum/ magnetic moment are
• A. $[MA^{-1}T^{-1}]$
• B. $[M^{-1}AT^{-1}]$
• C. $[MAT^{-1}]$
• D. $[MA^{-1}T]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Single Correct Medium
A physical quantity is measured and the result is expressed as $nu$ where $u$ is the unit used and $n$ is the numerical value. If the result is expressed in avrious units then?
• A. $n\propto$ size of $u$
• B. $n\propto u^2$
• C. $n\propto \sqrt{u}$
• D. $n\propto \dfrac{1}{u}$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
The velocity of a body falling under gravity is directly proportional to $g^ah^b$. If g and h are the acceleration due to gravity and height covered by the body, respectively, then determine the values of a and b.
• A. $\dfrac{1}{2}$ and $\dfrac{1}{2}$
• B. $- \dfrac{1}{2}$ and $-\dfrac{1}{2}$
• C. $\dfrac{1}{2}$ and $-\dfrac{1}{2}$
• D. $-\dfrac{1}{2}$ and $\dfrac{1}{2}$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
The hubble constant has the dimensions of
• A. Time
• B. ${ time }^{ -1 }$
• C. Length
• D. Mass

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Subjective Medium
A given quantity has both magnitude and direction. Is it necessarily be a vector? Justify.

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020