Home
Class 12
PHYSICS
The position vector oversetto(OA) of poi...

The position vector `oversetto(OA)` of point A `(7m,3m,0)` is rotated about `y-`axis. Find the volume `("in" m^(3))` of the cone thus formed `:("Take": pi=22/7)`.

A

`154 m^(3)`

B

`66m^(3)`

C

`22m^(3)`

D

None

Text Solution

Verified by Experts

The correct Answer is:
A

here `r=7`,`h=3`
volume `=(1)/(3)pir^(2)h`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A Rectangular paper of width 14 cm is folded along its width and a cylinder of radius 20 cm is formed. Find the volume of the cylinder (Take pi =(22)/(7))

Radius of a spherical balloon is increasing with respect to time at the rate of 2//pi" "m//s . Find the rate of change in volume (in m^(3)//s ) of the balloon when radius is 0.5 m?

The position vectors of the points (1, -1) and (-2, m) are vec(a) and vec(b) respectively. If vec(a) and vec(b) are collinear then find the value of m.

A regular square pyramid is 3m. Height and the perimeter of its base is 16 m. Find the volume of the payment.

Find the volume and the total surface area of a hemisphere of radius 3.5 cm . (pi= (22)/(7))

A cylinderical mug of radius 5 cm and height 9.8 cm is full of water. A solid in the form of right circular cone mounted on a hemisphere is immersed into the mug. The radius of the hemisphere is 3.5 cm ad height of conical part 5 cm . Find the volume of water left in the tub (Take pi= (22)/(7) )

The position vector of the objects of masses 25 kg and 10 kg are (4,7,5)m and (1,3,5) m respectively. Obtain the vector representing the gravitational force on 25 kg object by 10 kg object. (Take G = 6.67 xx 10^(-11) Nm^(2)kg^(-2) )

The volume of a cone is 462 m^(3) . Its base radius is 7m. Find its height.

if position vector is vecr =t^3−6t^2+3t+4m find the value of velocity and acceleration.

if position vector is vecr=t^3−6t^2+3t+4m find the time when acceleration is zero.