If M is mass of a planet and R is its radius then in order to become black hole [c is speed of light]
$\sqrt{\frac{G M}{R}} \leq c$
$\sqrt{\frac{G M}{2 R}} \geq c$
$\sqrt{\frac{2 G M}{R}} \geq c$
$\sqrt{\frac{2 G M}{R}} \leq c$

Question

If M is mass of a planet and R is its radius then in order to become black hole -c is speed of light-sqrt-frac-GM-R-leq csqrt-frac-GM-2R-geq csqrt-frac-2GM-R-geq csqrt-frac-2GM-R-leq c

Toppr Admin · Accepted Answer

The correct option is C -x221A-2GMR-x2265-cAccording to Einstein-xA0-Ve-x2265-C-x221A-2GMR-x2265-C

If M is mass of a planet and R is its radius then in order to become black hole [c is speed of light]√GMR≤c√GM2R≥c√2GMR≥c√2GMR≤c

The correct option is C √2GMR≥cAccording to Einstein Ve≥C√2GMR≥C

If M is mass of a planet and R is its radius then in order to become black hole [c is speed of light]
$\sqrt{\frac{G M}{R}} \leq c$
$\sqrt{\frac{G M}{2 R}} \geq c$
$\sqrt{\frac{2 G M}{R}} \geq c$
$\sqrt{\frac{2 G M}{R}} \leq c$

The correct option is C $\sqrt{\frac{2 G M}{R}} \geq c$
According to Einstein
$V e \geq C$
$\sqrt{\frac{2 G M}{R}} \geq C$