MCQ
The volume of a sphere is numerically equal to its surface area, then its diameter is:
- A$2$ units.
- ✓$6$ units.
- C$3$ units.
- D$1$ unit.
✓
Answer
Correct option: B.
$6$ units.
Volume of sphere $=$ surface area of sphere
$\frac{4}{3\pi\text{r}^3}=4\pi\text{r}^2$
$r = 3$ units
So, diameter $= 6$ units
$\frac{4}{3\pi\text{r}^3}=4\pi\text{r}^2$
$r = 3$ units
So, diameter $= 6$ units
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
If $APB$ and $CQD$ are $2$ parallel lines, then the bisectors of the angles $APQ, BPQ, CQP$ and $PQD$ form, square only if:
→→
If n is a natural number, then $\sqrt{n}$ is
→The greatest chord of a circle is called its:
Write the correct answer in the following:The value of $249^2-248^2$ is.
→Sheila received $x$ marks in two of her tests and $y$ marks in three other tests. Her average score in all the five tests in terms of $x$ and $y$ is:
→$\frac{9^{1 / 3} \times 27^{-1 / 2}}{3^{1 / 6} \times 3^{-2 / 3}}$ is equal to
→If a + b = 8 and ab = 12 then $a^3+b^3=$
→Write the correct answer in the following: An isosceles right triangle has area $8\ cm^2$. The length of its hypotenuse is:
→