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MCQ Questions for CBSE Class 12 with Answers
MCQ Questions for CBSE Class 11 with Answers
MCQ Questions for CBSE Class 10 with Answers
MCQ Questions for CBSE Class 9 with Answers
MCQ Questions for CBSE Class 8 with Answers
MCQ Questions for CBSE Class 7 with Answers
MCQ Questions for CBSE Class 6 with Answers
MCQ Questions for CBSE Class 5 with Answers
MCQ Questions for CBSE Class 4 with Answers
MCQ Questions for CBSE Class 3 with Answers
MCQ Questions for CBSE Class 2 with Answers
MCQ Questions for CBSE Class 1 with Answers
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Rotational Inertia Gate & PSU MCQ Questions With Answers
1.
Torque can be positive or negative.
True
False
2.
The easiest way to open a heavy door is by applying the force
Near the hinges
In the middle of the door
At the edge of the door far from the hinges
At the top of the door
3.
Conditions for equilibrium are:1st condition: net force = 02nd condition:net torque = 0
True
False
4.
The different types of energies associated with a molecule are __________
Vibrational energy
electronic energy
Rotational energy
All of these
5.
The energy in joules of a photon of wavelength 355 nm is
5.596 x 1019 J
5.596 x 1028 J
6.
A body with a definite shape that doesn't change is:
period
angular acceleration
rigid body
radius of gyration
7.
The formula used to find a torque is...
(m)(g)
(F) cos(Ɵ)
(F)(r)( sin θ\thetaθ )
(m)(a)
8.
__________ (ω)– the rate at which a body rotates about an axis (radians per second)
linear speed
rotational speed
angular speed
velocity
9.
The microwave active molecules are
HCl, OCS
CO,CO2
Both a) and b)
None of the above
10.
A photon of wave number 100 cm-1 has a wavelength of
1 m
1 mm
1000 nm
100 m
11.
Molecules which are having _______ are microwave active.
Dipole moment
High pressure Detector
Principle axis
Acidity
12.
Which of the following molecule has no rotational spectrum?
NH3
HCl
N2
H2O.
13.
The value of torque depends on the rotation axis and the _______________________
magnitude of applied force.
mass of object
moment inertia of object
shape of object
14.
From the rotational microwave spectrum of 1H35Cl, we find that B = 10.59342 cm-1 . Given that the masses of 1H and 35 Cl are 1.0078250 and 34.9688527 amu, respectively, determine the bond length of the 1H35Cl molecule
1.274 x 10-10 m
1.674 x 10-10 m
1.474 x 10-10 m
1.0274 x 10-10 m
15.
Calculate the moment of inertia, I, of the molecule 1H35Cl. The masses of the two atoms are mH = 1.673 x 1027 kg and mCl = 5.807 x 1026 kg. The equilibrium bond length of the molecule is 1.275 Å.
2.644 x 1047 kg m2
2.644 x 1027 kg m2
2.644 x 1044 kg m2
2.644 x 1024 kg m2
16.
The product of the force times the lever arm; the movement of the force about the axis is:
torque
lever arm
rotational inertia
angular momentum
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