Physics

# All the numbers that can be formed using the digits, are arranged in the increasing order of magnitude. The rank of the number is (repetition not allowed).

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Single Correct Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 199

#### Realted Questions

Q1 Single Correct Medium
An equation is given here $\left(P+\dfrac {a}{V^{2}}\right)=b\dfrac {9}{V}$ where $P=$pressure, $V=$Volume and $\theta=$Absolute temperature. if $a$ and $b$ are constants, the dimension of a will be
• A. $[ML^{-5}T^{-1}]$
• B. $[ML^{5}T^{1}]$
• C. $[ML^{5}T^{-2}]$
• D. $[ML^{-1}L^{5}T^{2}]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Single Correct Medium
$[MLT^{-1}]+[MLT^{-1}]=$ ____

• A. $[M^oL^oT^o]$
• B. $[MLT^{-1}]$
• C. $2[MLT^{-1}]$
• D. None of these

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
Consider the following two statements A and B and identify the correct answer.
A) Two quantities which are to be added must have the same dimensions.
B) Two quantities which are to be multiplied must have the same dimensions.
• A. A is true but B is false
• B. B is true but A is false
• C. Both A and B are true
• D. Both A and B are false

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
Find the volume of a ring immersed in water ,increasing the level from 55.2 ml to 75.3 ml.
• A. $20.1\ ml$
• B. $29\ ml$
• C. $10.1\ ml$
• D. $14.1\ ml$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Single Correct Medium
If the random error in the arithmetic mean of 50 observation is $\alpha$, then the random error in the arithmetic mean of 150 observations would be
• A. $\alpha$
• B. $3\alpha$
• C. $\dfrac { \alpha }{ 3 }$
• D. $2\alpha$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020