JEE Main 15 Apr 2018 Shift 2 Solved Paper

Section: Physics

Question : 21 of 90

Marks: +1, -0

The characteristic distance at which quantum gravitational effects are significant, the Planck length, can be determined from a suitable combination of the fundamental physical constants G,h and c . Which of the following correctly gives the Planck length ?

[15 Apr 2018 Shift 2]

Għ2c3
G2ħc
(‌
Għ
c3
)1∕2
G1∕2ħ2c

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