Home
Class 12
PHYSICS
Needle N1 , N2 and N3 are made of ferrom...

Needle `N_1 , N_2 and N_3` are made of ferromagnetic , a paramagnetic and a diamagnetic substance respectively. A magnet when brought close to them will

A

attract `n_(1)` and `n_(2)` strongly but repel `n_(3)`

B

attract `n_(1)` strongly `n_(2)` weakly and repel `n_(3)` weakly

C

attract `n_(1)` strongly but repel `n_(2)` and `n_(3)` weakly

D

attract all three of them

Text Solution

Verified by Experts

The correct Answer is:
B
Ferromagnetic & paramagnetic substances are attracted by magnets whereas diamgnetic substances are repelled by magnets
Promotional Banner

Topper's Solved these Questions

  • MAGNETOSTATICS

    MODERN PUBLICATION|Exercise MULTIPLE CHOICE QUESTION (LEVEL I) (ASSERTION AND REASONING)|2 Videos

  • MAGNETOSTATICS

    MODERN PUBLICATION|Exercise MULTIPLE CHOICE QUESTION (LEVEL I) (PARAGRAPH QUESTIONS )|1 Videos

  • LAWS OF MOTION

    MODERN PUBLICATION|Exercise Revision test|43 Videos

  • MOCK TEST-1

    MODERN PUBLICATION|Exercise MCQs|47 Videos

Similar Questions

Explore conceptually related problems

Mention the range of magnetic susceptibility for ( a) Diamagnetic substances ( DMS) (b) Paramagnetic substances (PMS) (c ) Ferromagnetic substances (FMS).

A lens made from a material of absolute refractive index n_1 is placed in a medium of absolute refractive index n_2 . The focal length f of the lens is related to n_1 and n_2 as :

Let n_1, and n_2 , be the number of red and black balls, respectively, in box I. Let n_3 and n_4 ,be the number one red and b of red and black balls, respectively, in box II. A ball is drawn at random from box 1 and transferred to box II. If the probability of drawing a red ball from box I, after this transfer, is 1/3 then the correct option(s) with the possible values of n_1 and n_2 , is(are)

Let n_(1)and n_(2) be the number of red and black balls, respectively, in box I. Let n_(3) and n_(4) be the numbers of red and black balls, respectively, in the box II. One of the two boxes, box I and II, was selected at random and a ball was drawn randomly our of this box. The ball was found to be red. If the probability that this red ball drawn from box II is 1/3 then the possible values of n_(1),n_(2),n_(3)and n_(4) is (are)

If A and B are coefficients of x^(n) in the expansion of (1+x)^(2n) and (1+x)^(2n-1) respectively, then A/B equals:

If S_(1), S_(2) and S_(3) denote the sum of first n_(1) , n_(2) and n_(3) terms respectively of an A.P.L , then : (S_(1))/(n_(1)) . ( n _(2) - n_(3)) + ( S_(2))/( n_(2)). ( n _(3) - n_(1)) + ( S_(3))/( n_(3)) . ( n_(1) - n_(2)) is equal to :