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The ratio of one micron to one nanometre...

The ratio of one micron to one nanometre is

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The correct Answer is:
D
Force on a dipole `F=p(del E)/(del x)`
At `x=R/sqrt(2), (del E)/(del x)=0`, so `F=0`
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ALLEN-BASIC MATHS-Exercise-02
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  2. The fundamental unit which has same power in the dimenssional formula ...

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  3. The ratio of one micron to one nanometre is

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  4. The equation of a wave is given by Y = A sin omega ((x)/(v) - k), wher...

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  5. Temperature can be expressed as a derived quantity in terms of any of ...

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  6. The time dependence of physical quantity p is given by p = p(0) exp (-...

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  7. The density of wood is 0.5 in CGS. system of units The corresponding v...

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  8. In a particular system, the unit of length, mass and time are chosen t...

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  9. Match List-I with List-II and select the correct answer by using the c...

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  10. Which of the following is not a unit of time?

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  11. Which of the following is the smallest unit?

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  12. Which relation is wrong ?

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  13. What is the dimensional formula of angular velocity?

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  14. If A and B are two physical quantities having different dimensions The...

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  15. The dimensional formula of product and quotient of two physical quanti...

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  16. The van der Waal's equation of state for some gases can be expressed a...

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  17. Force on a particle in one-dimensional motion is given by F=Av+Bt+(Cx)...

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  18. Consider the equation (d)/(dt)(intvec(F).dvec(S))=A(vec(F).vec(rho)) w...

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  19. The dimensional formula for latent heat is

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  20. The radiation emitted per unit time by unit area of a black body at te...

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