📚 Practice Mode

Solids - class-IX

Learn at your own pace with hints and detailed explanations

1 / 19
Multiple Choice

From a solid sphere of radius $R$, a concentric solid sphere of radius $\dfrac{R}{2}$ is removed. The total surface area increases by

  1. $0\%$
  2. $25\%$
  3. $50\%$
  4. $75\%$
Change Mode