Last Updated On [03-11-2023]
A thin horizontal circular disc is rotating about a vertical axis passing through its centre. An insect is at rest at a point near the rim of the disc. The insect now moves along a diameter of the disc to reach other end. During the journey of the insect, the angular speed of the disc
a)
Remains unchanged
b)
Continuously decreases
c)
Continuously increases
d)
First increases and then decreases
A thin horizontal circular disc is rotating about a vertical axis passing through its centre. An insect is at rest at a point near the rim of the disc. The insect now moves along a diameter of the disc to reach other end. During the journey of the insect, the angular speed of the disc
a)
Remains unchanged
b)
Continuously decreases
c)
Continuously increases
d)
First increases and then decreases
Question ID - 52692 :-
A thin horizontal circular disc is rotating about a vertical axis passing through its centre. An insect is at rest at a point near the rim of the disc. The insect now moves along a diameter of the disc to reach other end. During the journey of the insect, the angular speed of the disc
a)
Remains unchanged
b)
Continuously decreases
c)
Continuously increases
d)
First increases and then decreases
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A thin horizontal circular disc is rotating about a vertical axis passing through its centre. An insect is at rest at a point near the rim of the disc. The insect now moves along a diameter of the disc to reach other end. During the journey of the insect, the angular speed of the disc |
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|
a) |
Remains unchanged |
b) |
Continuously decreases |
c) |
Continuously increases |
d) |
First increases and then decreases |
(d)
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From angular momentum conservation about vertical axis passing through centre. When insect is coming from circumference to centre. Moment of inertia first decrease then increase. So angular velocity increase then decrease
Next Question :
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Consider the statements S1 and S2 S1: Conductivity always increases with decrease in the conductance of electrolyte. S2: Molar conductivity always increases with decrease in the concentration of electrolyte. The among option among the following is ; |
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(a) |
S1 is wrong and S2 is correct |
(b) |
S1 is correct and S2 is wrong |
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(c) |
Both S1 and S2 are wrong |
(d) |
Both S1 and S2 are correct |
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