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The value of Planck's constant in SI uni...

The value of Planck's constant in SI unit is

A

`6.63 xx 10^(-31 )` J-s

B

`6.63 xx 10^(-30 )` kg - m/s

C

`6.63 xx 10^(-32)` kg- m/s

D

`6.63 xx 10^(-34)` j-s

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The correct Answer is:
D
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AAKASH SERIES-UNITS AND MEASUREMENTS-EXERCISE -1 A
  1. The dimensional formula for magnetic flux is

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  2. A pair of physical quantities having same dimensional formula is

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  3. The value of Planck's constant in SI unit is

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  4. SI unit of permittivity of free space is

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  5. The dimensions of universal gravitational constant are

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  6. The ratio of the dimensions of Planck's constant and that of the momen...

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  7. The velocity v of a particle at time t is given by v=at+(b)/(t+c), whe...

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  8. Dimensions of resistance in an electrical circuit, in terms of dimensi...

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  9. If the error in the measurement of radius of a sphere is 2%, then the ...

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  10. Which two of the following five physical paramenters have the same dim...

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  11. If the dimensions of a physical quantity are given by ["M"^(a)"L"^(b)"...

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  12. The dimensions of (1)/(2)epsilon(0)E^(2), where epsilon(0) is permitti...

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  13. A student measures the distance traversed in free fall of a body, init...

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  14. The density of material in CGS system of mass is 4g cm^(3) in a system...

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  15. The damping force on an oscillator is directly proportional to the vel...

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  16. If force (F), velocity (v)and time (T) are taken as fundamental units,...

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  17. If energy (E), velocity (v) and time (T) are chosen as the fundamental...

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  18. Planck 's constant (h) speed of length in vaccum (C) and newton 's gr...

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  19. A) Work and energy have the same units in any given system of measurem...

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  20. A standard unit should be (a) consistent (b) reproducible (c) ...

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