Planck's constant h, speed of light c and gravitational constant G are used to form a unit of length L and a unit of mass M. Then the correct option(s) is(are)

JEE Advanced 2015 Physics question

Planck's constant , speed of light and gravitational constant are used to form a unit of length and a unit of mass . Then the correct option(s) is(are)

(A)Correct
(B)
(C)Correct
(D)Correct

Answer: (A),(C),(D)

Solution

Dimensions: , , . Then has dimension , so the unit of mass is : , ,

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Question ID VK-026373