Ram has a semicircular disc. He rotates it about its diameter by 360 degrees. Wh

Sail E0 Webinar

Question

Ram has a semicircular disc. He rotates it about its diameter by 360 degrees. When he rotates the disc, a volume of air in his room gets swept.The name of the object/shape that exactly occupies this volume is
___.

Answer:
:

Ram Has A Semicircular Disc. He Rotates It About Its Diamete...

The shape obtained when a semi circular disc is rotated by 360 degrees is a sphere. If it was rotated by 180 degrees instead of 360 degrees, then we obtaina hemisphere. The line segment AB willbe diameter of the sphere formed.

Was this answer helpful ?

Next Question

Submit Solution

More Questions on This Topic :

Question 1. There is a coin. Ram attaches a conical attachment to one flat end of coin. The conical attachment has same radius as co....coin. What is the surface area of the combined solid?

Question 2. In the figure, two small circles touch each other externally at the centre of a bigger circle and these small circles ar....cm. Find the area of the shaded region in cm2.

Question 3. Metallic spheres of radii 6cm, 8cm and 10cm, respectively are melted to form a single solid sphere. The radius of the r....solid sphere. The radius of the resulting sphere(in cm) is ___

Question 4. The height of a cone is 40 cm. A small cone is cut off at the top by a plane parallel to the base. If the volume of the ....in cm) above the base is the section made ?

Question 5. Tick the correct answer in the following: Area of a sector of angle p (in degrees) of a circle with radius R is ....

Question 6. An umbrella has 8 ribs which are equally spaced. Assuming the umbrella to be a flat circle of radius 42 cm, find the ar....in cm2 between the two consecutive ribs of the umbrella.___

Question 7. A bucket is in the form of a frustum of a cone, its depth is 15 cm and the diameters of the top and the bottom are 56 cm....of water can the bucket hold ? (Take π = 227) __

Question 8. A vessel is in the form of an inverted cone. Its height is 8 cm and the radius of its top, which is open, is 5 cm. It is....number of lead shots dropped in the vessel is ______.

Question 9. A rectangular paper is folded into a cylinder. The length and breadth of the paper are L and B respectively. The surface....and B respectively. The surface area of the cylinder is ___

Question 10. A container shaped like a right circular cylinder having diameter 12 cm and height 15 cm is full of ice cream. The ice c....of such cones which can be filled with ice cream.

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

DSP Combined 1 Free Revision Test SAIL JO E-0

GPOE / GPA Combined 1 Free Revision Test SAIL JO E-0

BSP Plant Specific Review Test SAIL JO E-0

BSL Combined 1 Free Revision Test SAIL JO E-0

GFM Combined 1 Free Revision Test SAIL JO E-0