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Calculate the time taken by a ray of lig...

Calculate the time taken by a ray of light from the sun to reach the earth. (use standard data ).

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  2. Find the dimension of Planck's constant. If it's value in cgs system i...

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  4. Deduce the relation between 1 light yr (1 ly) and 1 astronomical unit ...

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  5. How many electrons (mass 9.1xx10^-31kg) would balance one Proton (mass...

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  6. Calculate the number of electrons to be absorbed by a body to increase...

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  9. Convert a velocity of 20m//s into kilometer per hour.

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  10. Convert one Newton into dyne (unit of force in CGS system )

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  11. Check the correctness of the equation s=ut+1/2at^2 by dimensional anal...

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  12. The value of acceleration due to gravity is 980 cm//s^2. What will be ...

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  14. Show dimensionally that the frequency n of transverse waves in a strin...

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