By melting two solid metallic spheres of radii 1 cm and 6 cm, a hollow sphere of thickness 1 cm is made. The external radius of the hollow sphere will be

By melting two solid metallic spheres of radii 1cm and 6cm, a hollow sphere of thickness 1cm is made.The external radius of the hollow sphere will be

The radii of two solid iron sphere are 1 cm and 6 cm respectively. A hollow sphere is made by melting the two, sphere. If the external radius of the hollow sphere is 9 cm, then its thickness (in cm) is दो ठोस लोहे के गोलकों की त्रिज्या क्रमशः 1सेमी और 6 सेमी हैं। दोनो गोलकों को गलाकर एक खोखले गोलक बनाया जाता है। यदि खोखले गोलक की बाह्य त्रिज्या 9 सेमी है, तो इसकी मोटाई (सेमी मे) कितनी है?

If the volume of a hollow iron-sphere of thickness 3 cm be 490(2)/(7) cc , then find the external radius of the sphere.

A solid metal sphere of 6 cm diameter is melted and a circular sheet of thickness 1 cm is prepared. Determine the diameter of the sheet.

A solid metal sphere of 6 cm diameter is melted and a circular sheet of thickness 1 cm is prepared. Determine the diameter of the sheet.

If three metallic spheres of radii 6 cm, 8 cm and 10 cm are melted to form a single sphere, then the diameter of the new sphere will be

Metallic spheres of radii 7 cm, 9 cm and 11 cm respectively are melted to form a single solid sphere. The radius of the resulting sphere is

A solid metallic sphere of radius 8 cm is melted and recast into 'n' spherical solids of radius 1 cm. then n=

If two solid spheres with the radii of 1 cm and 6 cm lengths are melted and a hollow sphere with the thickness of 1 cm is made, calculate the outer curved surface area of the hollow sphere.