Home
Class 11
PHYSICS
A coin placed on a rotating turntable ju...

A coin placed on a rotating turntable just slips if it is placed at a distance of 4 cm from the centre. If the angular velocity of the turntable is doubled, it will just slip at a distance of

A

1cm

B

2cm

C

4cm

D

8cm

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

A small objective placed on a rotating horizontal turn table just slips when it is placed at a distance 4cm from the axis of rotation. If the angular velocity of the trun-table doubled, the objective slip when its distance from the axis of ratation is.

A small objective placed on a rotating horizontal turn table just slips when it is placed at a distance 4cm from the axis of rotation. If the angular velocity of the trun-table doubled, the objective slip when its distance from the axis of ratation is.

An object is placed at a distance of 12 cm from a convex lens of focal length 8 cm. Find : nature of the image

An object is placed at a distance of 12 cm from a convex lens of focal length 8 cm. Find : the position of the image

An object is placed at a distance 20 cm from the pole of a convex mirror of focal length 20 cm. The image is produced at

A gramophone disc rotates at 60 rpm . A coin of mass 18 g is placed at a distance of 8 cm from the centre . Calculate centrifugal force on the coin . Take pi^(2) = 9. 87 .

An object is placed at a distance of 20 cm from a concave mirror of focal lenght 10 cm. What is the image distance?

A coin is kept at distance of 10 cm from the centre of a circular turn table. If mu=0.8 the frequency of rotation at which the coin just begins to slip is

A cylinder of height H and diameter H//4 is kept on a frictional turntable as shown in Fig. The axis of the cylinder is perpendicular to the surface of the table and the distance of axis of the cylinder is 2H from the centre of the table. The angular speed of the turntable at which the cylinder will start toppling (assume that friction is sufficient to prevent slipping) is

A block is placed on a horizontal table which can rotate about its axis.The block is placed at certain distance from centre as shown in figure. Table rotates such that particle does not slide. See possible direction of net acceleration of block at the instant shown in figure {:(,"Column-I","Column-II"),(,(A)"When rotation is clockwise with constant "omega,(P)1),(,(B)"When rotation is clock wise with decreasing "omega,(Q)2),(,(C)"When rotation is clockwise with increasing "omega,(R)3),(,(D)"Just after clockwise rotation beings from rest",(S)4):}