In a vertical plane inside a smooth hollow thin tube, a block of same mass as that of tube is released as shown in fig. When it is slightly disturbed it moves towards right. By the time the block reaches the right end of the tube, the displacement of the tube will be (where ‘ is the mean radius of the tube, assume that the tube remains in vertical plane)

a)

b)

c)

d)

Question

Question ID - 100416 :-
In a vertical plane inside a smooth hollow thin tube, a block of same mass as that of tube is released as shown in fig. When it is slightly disturbed it moves towards right. By the time the block reaches the right end of the tube, the displacement of the tube will be (where ‘ is the mean radius of the tube, assume that the tube remains in vertical plane)

a)

b)

c)

d)

1 Answer

5876 Votes

score 3537 · Accepted Answer

Answer Key : (c) -

(c)

Let the tube be displaced by towards left. Then

In 0.1 s, the current in a coil increases from 1A to 1.5 A. If inductance of coil is 60mH, then induced current in external resistance of will be
1)	1 A	2)	0.5 A	3)	0.2 A	4)	0.1 A