Mechanics
Units & Measurement and Dimensions
MCQ (Single Correct Answer)
Motion in a Straight Line
MCQ (Single Correct Answer)
Work, Energy and Power
MCQ (Single Correct Answer)
Center of Mass and Collision
MCQ (Single Correct Answer)
Simple Harmonic Motion
MCQ (Single Correct Answer)
Heat and Thermodynamics
MCQ (Single Correct Answer)
Electromagnetism
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Alternating Current
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Modern Physics
Dual Nature of Radiation
MCQ (Single Correct Answer)
Semiconductor Devices and Logic Gates
MCQ (Single Correct Answer)
Communication Systems
MCQ (Single Correct Answer)
1
KCET 2022
MCQ (Single Correct Answer)
+1
-0

The angular speed of a motor wheel is increased from $$1200 \mathrm{~rpm}$$ to $$3120 \mathrm{~rpm}$$ in $$16 \mathrm{~s}$$. The angular acceleration of the motor wheel is

A
$$4 \pi \mathrm{~rad} / \mathrm{s}^2$$
B
$$6 \pi \mathrm{~rad} / \mathrm{s}^2$$
C
$$8 \pi \mathrm{~rad} / \mathrm{s}^2$$
D
$$2 \pi \mathrm{~rad} / \mathrm{s}^2$$
2
KCET 2021
MCQ (Single Correct Answer)
+1
-0

In figure $$E$$ and $$v_{\mathrm{cm}}$$ represent the total energy and speed of centre of mass of an object of mass $$1 \mathrm{~kg}$$ in pure rolling. The object is

KCET 2021 Physics - Rotational Motion Question 8 English

A
sphere
B
ring
C
disc
D
hollow cylinder
3
KCET 2020
MCQ (Single Correct Answer)
+1
-0

A wheel starting from rest gains an angular velocity of $$10 \mathrm{~rad} / \mathrm{s}$$ after uniformly accelerated for $$5 \mathrm{~s}$$. The total angle through which it has turned is

A
$$25 \mathrm{~rad}$$
B
$$100 \mathrm{~rad}$$
C
$$25 \pi \mathrm{~rad}$$
D
$$50 \pi \mathrm{~rad}$$ and a vertical axis
4
KCET 2020
MCQ (Single Correct Answer)
+1
-0

A thin uniform rectangular plate of mass $$2 \mathrm{~kg}$$ is placed in $$x y$$-plane as shown in figure. The moment of inertial about $$x$$-axis is $$I_x=0.2 \mathrm{~kgm}^2$$ and the moment of inertia about $$Y$$-axis is $$I_y=0.3 \mathrm{~kgm}^2$$. The radius of gyration of the plate about the axis passing through $$O$$ and perpendicular to the plane of the plate is

KCET 2020 Physics - Rotational Motion Question 6 English

A
50 cm
B
5 cm
C
38.7 cm
D
31.6 cm
KCET Subjects