1
IIT-JEE 2009 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1
A block of base 10 cm × 10 cm and height 15 cm is kept on an inclined plane. The coefficient of friction between them is $$\sqrt 3 $$. The inclination θ of this inclined plane from the horizontal plane is gradually increased from $$0^\circ $$. Then
A
at θ = $$60^\circ $$, the block will start sliding down the plane
B
the block will remain at rest on the plane up to certain θ and then it will topple
C
at θ = $$60^\circ $$, the block will start sliding down the plane and continue to do so at higher angles
D
at θ = $$60^\circ $$, the block will start sliding down the plane and on further increasing θ, it will topple at certain θ
2
IIT-JEE 2009 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

Look at the drawing given in the figure below which has been drawn with ink of uniform line-thickness. The mass of ink used to draw each of the two inner circles, and each of the two line segments is $$m$$. the mass of the ink used to draw the outer circle is $$6m$$. The coordinates of the centres of the different parts are: outer circle (0, 0), left inner circle ($$-a,a$$), right inner circle ($$a,a$$), vertical line (0, 0) and horizontal line ($$0,-a$$). The y-coordinate of the centre of mass of the ink in this drawing is

IIT-JEE 2009 Paper 1 Offline Physics - Impulse & Momentum Question 3 English

A
$$\frac{a}{10}$$
B
$$\frac{a}{8}$$
C
$$\frac{a}{12}$$
D
$$\frac{a}{3}$$
3
IIT-JEE 2009 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

The figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time. $$I_1$$ and $$I_2$$ are the currents in the segments ab and cd. Then,

IIT-JEE 2009 Paper 1 Offline Physics - Electromagnetic Induction Question 3 English

A
$$I_1 > I_2$$
B
$$I_1 < I_2$$
C
$$I_1$$ is in the direction ba and $$I_2$$ is in the direction cd.
D
$$I_1$$ is in the direction ab and $$I_2$$ is in the direction dc.
4
IIT-JEE 2009 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

Two small particles of equal masses start moving in opposite directions from a point A in a horizontal circular orbit. Their tangential velocities are $$v$$ and 2$$v$$, respectively, as shown in the figure. Between collisions, the particles move with constant speeds. After making how many elastic collisions, other than that at A, these two particles will again reach the point A?

IIT-JEE 2009 Paper 1 Offline Physics - Impulse & Momentum Question 4 English

A
4
B
3
C
2
D
1
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