1
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
The magnetic susceptibility is negative for
A
ferromagnetic material only
B
paramagnetic and ferromagnetic materials
C
diamagnetic material only
D
paramagnetic material only
2
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
A long straight wire of radius $$a$$ carries a steady current $$I$$. The current is uniformly distributed over its cross-section. The ratio of the magnetic fields B and B', at radial distance $${a \over 2}$$ and 2$$a$$ respectively, from the axis of the wire is
A
1
B
4
C
$${1 \over 4}$$
D
$${1 \over 2}$$
3
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
A long solenoid has 1000 turns. When a current of 4 A flows through it, the magnetic flux linked with each turn of the solenoid is 4 $$ \times \,{10^{ - 3}}$$ Wb. The self-inductance of the solenoid is
A
2 H
B
1 H
C
4 H
D
3 H
4
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Match the corresponding entries of column 1 with column 2. [Where m is the magnification produced by the mirror]

Column 1 Column 2
(A) m = - 2 (p) Convex mirror
(B) m = -$${1 \over 2}$$ (q) Concave mirror
(C) m = +2 (r) Real image
(D) m = +$${1 \over 2}$$ (s) Virtual image
A
A  $$ \to $$  p   and   s;   B $$ \to $$ q and r;   C $$ \to $$ q and s;   D $$ \to $$ q and r
B
A  $$ \to $$  r   and   s;   B $$ \to $$ q and s;   C $$ \to $$ q and r;   D $$ \to $$ p and s
C
A  $$ \to $$  q  and  r;   B $$ \to $$ q and r;   C $$ \to $$ q and s;   D $$ \to $$ p and s
D
A  $$ \to $$  p   and   r;   B $$ \to $$ p and s;   C $$ \to $$ p and q;   D $$ \to $$ r and s