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MEASUREMENTS

Authored by daniel williams

Physics

11th Grade

Used 12+ times

MEASUREMENTS
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 P=αβeazkθP=\frac{\alpha}{\beta}e^{-\frac{az}{k\theta}}  
The variation of pressure P with distance z is given by the above expression.
where  α,β \alpha,\beta\   are constants, k is Boltzmann constant and
 θ\theta  is temperature. The dimensional formula of  β\beta  will be_______ 

 [M1L T2]\left[M^{-1}L\ T^2\right]  

 [M0L0T0]\left[M^0L^0T^0\right]  

 [M0L2T0]\left[M^0L^2T^0\right]  

 [M1L1T2]\left[M^1L^{-1}T^{-2}\right]  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If the force (F), velocity (V) and time (T) are chosen as the fundamental units, the dimensions of mass are:

[FVT1]\left[FVT^{-1}\right]

[FVT2]\left[FVT^{-2}\right]

[FV1T1]\left[FV^{-1}T^{-1}\right]

[FV1T]\left[FV^{-1}T\right]

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The dimensional formula for energy E is

[ML2T2]\left[ML^2T^{-2}\right]

[MLT2]\left[ML^{ }T^{-2}\right]

[ML2T]\left[ML^2T^{ }\right]

[L2T2]\left[L^2T^{-2}\right]

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the dimensions of a/b in the relation


 F = ax + bt2F\ =\ a\sqrt{x}\ +\ bt^2  
where F is force, x is distance and t is time

 [LT2]\left[L^{ }T^2\right]  

 [L12T]\left[L^{-\frac{1}{2}}T\right]  

 [L1T2]\left[L^{-1}T^2\right]  

 [L12T2]\left[L^{-\frac{1}{2}}T^2\right]  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 X = A + vtX\ =\ A\ +\ vt  
In the above expression X is distance, v is velocity and t is time. The dimensions of A will be equivalent to ________

time

velocity

distance

none of the options

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the result of 12.637- 2.42 with proper significant figures

10.217

10.2

10.22

10

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the result of 46.75/1.3 with proper significant figures

35.96

36

35.9

35.961

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