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Neemit bagh

Jul 12, 2014

Find the dimensions of constant a and b occurig in van der Waal's equation . [p+a/v2][v-b]=RT

Answer.


    (P + a/V2) (V - b) = RT
P is pressure, V is volume and T is temperature.
[P] = [F/A]&#...

Answer (2)

Sonali Sahi

Apr 17, 2015

What is parallax method? and Error?

Ans:

Paral...

Answer (5)

Avinash Pratap singh

Apr 25, 2014

How to calculate angels beteween star and earth ? angle α ?

This answer has an image. Please click on the question to read more.

Answer (2)

Neemit bagh

Jul 12, 2014

Write the dimensional formula of a/b in the relation f=a√x+bt2 where f=force,x=distance,t=time.

f = a√x + bt2, where [f] = [M L T −2], [x] = [L] and [t] = [T].

LHS is force. So both the terms on the RHS have the dimensions of force.

[f] = [a&...

Answer (1)

Neemit bagh

Jul 16, 2014

Write the dimensions of a and b in the relation E=b-x2/at, where E,x and t represent energy,distance and time respectively. 

According to the principle of homogeneity of dimensions, [E] = [b] = [(x2/a) t]

[E] = [M L2 T−2]
Therefore [b] = [M L2 T−2

Answer (1)

Neemit bagh

Jul 12, 2014

Write the dimensional formula of a/b in the relation P=a-t2/bx where p=pressure,x=distance,t=time.

[ M T^2 ]

Answer (2)

Zeba

Jun 2, 2015

which quantity has unit but no dimension?

Angle and solid angle are the physical quantities which have no dimensional formula as they are the ratios of the same physical quantity, but we measure them.

Angle is measured in radians, gradia...

Answer (1)

Neemit bagh

Jul 16, 2014

The escape velocity v of a body depends upon (i) the acceleration due to gravity of the planet and (ii)the radius of the planet R.Establish dimensionally the relationship v,g and R.

v = k ga Rb
k is a dimensionless constant.
[v] = [ ga Rb ]
[L T −1] = [(LT −2)a Lb]
...

Answer (1)

Avinash Pratap singh

Aug 3, 2014

How to derive dimensions of Solar constant ? 

The solar constant is defined as the solar energy incident per unit area per second on...

Answer (1)

Neemit bagh

Jul 12, 2014

How can you check the correctness of a dimensional equation?

Answer: 

To check the dimensional correctness of a given physical relation, we should check whether the dimensions on both sides of each term is the same or not, if not the...

Answer (1)

Neemit bagh

Jul 12, 2014

Find the dimensions of constant a and b occurig in van der Waal's equation . [p+a/v2][v-b]=RT

Answer.


    (P + a/V2) (V - b) = RT
P is pressure, V is volume and T is temperature.
[P] = [F/A]&#...

Answer (2)

Sonali Sahi

Apr 17, 2015

What is parallax method? and Error?

Ans:

Paral...

Answer (5)

Avinash Pratap singh

Apr 25, 2014

How to calculate angels beteween star and earth ? angle α ?

This answer has an image. Please click on the question to read more.

Answer (2)

Neemit bagh

Jul 12, 2014

Write the dimensional formula of a/b in the relation f=a√x+bt2 where f=force,x=distance,t=time.

f = a√x + bt2, where [f] = [M L T −2], [x] = [L] and [t] = [T].

LHS is force. So both the terms on the RHS have the dimensions of force.

[f] = [a&...

Answer (1)

Neemit bagh

Jul 16, 2014

Write the dimensions of a and b in the relation E=b-x2/at, where E,x and t represent energy,distance and time respectively. 

According to the principle of homogeneity of dimensions, [E] = [b] = [(x2/a) t]

[E] = [M L2 T−2]
Therefore [b] = [M L2 T−2

Answer (1)

Neemit bagh

Jul 12, 2014

Write the dimensional formula of a/b in the relation P=a-t2/bx where p=pressure,x=distance,t=time.

[ M T^2 ]

Answer (2)

Zeba

Jun 2, 2015

which quantity has unit but no dimension?

Angle and solid angle are the physical quantities which have no dimensional formula as they are the ratios of the same physical quantity, but we measure them.

Angle is measured in radians, gradia...

Answer (1)

Neemit bagh

Jul 16, 2014

The escape velocity v of a body depends upon (i) the acceleration due to gravity of the planet and (ii)the radius of the planet R.Establish dimensionally the relationship v,g and R.

v = k ga Rb
k is a dimensionless constant.
[v] = [ ga Rb ]
[L T −1] = [(LT −2)a Lb]
...

Answer (1)

Avinash Pratap singh

Aug 3, 2014

How to derive dimensions of Solar constant ? 

The solar constant is defined as the solar energy incident per unit area per second on...

Answer (1)

Neemit bagh

Jul 12, 2014

How can you check the correctness of a dimensional equation?

Answer: 

To check the dimensional correctness of a given physical relation, we should check whether the dimensions on both sides of each term is the same or not, if not the...

Answer (1)

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