Bihar Board Class 11 Physics Question Paper. We covered all the Bihar Board Class 11 Physics Question Paper in this post for free so that you can practice well for the exam.
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Class 11 Physics Mock Test for Students
The radius of gyration of a disc of mass 100 g and radius 5 cm about an axis passing through its centre of gravity and perpendicular to the plane is :
(A) 0.5 cm
(B) 2.5 cm
(C) 3.54 cm
(D) 6.54 cm
Option c – 3.54 cm
A meter stick has a mass of 300 g. Its moment of inertia about an axis passing through the 30 cm mark and perpendicular to length is :
(A) 0.052 kg m²
(B) 0.27 kg m²
(C) 0.037 kg m²
(D) 0.00225 kg m²
Option c – 0.037 kg m²
The radius of gyration of a body about an axis passing through its centre of mass is 0.05 m. Find its radius gyration about a parallel axis at a distance of 0.12 m from the centre of mass :
(A) 0.05 m
(B) 0.12 m
(C) 0.13 m
(D) 0 m
Option c – 0.13 m
The moment of inertia of a rigid body about an axis passing through its centre of mass is Ic and the moment of inertia of the same body about another axis parallel to the first axis is Io. Then :
(A) I is always equal to Ic
(B) Io is always smaller than Ic
(C) Io is always greater than Ic
(D) All of these
Option c – Io is always greater than Ic
The moment of inertia of a uniform circular disc about diameter is I. Its moment of inertia about an axis perpendicular to its plane and passing through a point on its rim will be :
(A) 4 I
(B) 6 I
(C) 8 I
(D) 9 I
Option b – 6 I
The radius of gyration of the body about an axis 4 cm from its centre of mass is 5 cm, radius of gyration about a parallel axis passing through its centre of mass is
(A) 9 cm
(B) 1 cm
(C) 4.5 cm
(D) 3 cm
Option d – 3 cm
The sum of the moment of masses of all the particles of a rigid body about the centre of mass is always :
(A) Infinite
(B) Maximum
(C) Minimum
(D) Zero
Option d – Zero
The moment of inertia of a ring about one of its diameter is 1 kg m². What will be its moment of inertia about a tangent parallel to the diameter?
(A) 2 kg m²
(B) 4 kg m²
(C) 3 kg m²
(D) 5 kg m²
Option c – 3 kg m²
If the moment of inertia of a thin uniform rod about an axis passing through its centre and perpendicular to its plane is IA and that about an axis passing through its one end is IB then :
(A) IA = IB
(B) IA > IB
(C) IA < IB
(D) IA > IB
Option c – IA
The moment of inertia of a ring about a transverse axis passing through its centre is 6 kg m². The moment of inertia about a tangent in its plane is :
(A) 3 kg m²
(B) 6 kg m²
(C) 9 kg m²
(D) 12 kg m²
Option c – 9 kg m²
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