1
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
If mass-energy equivalence is taken into account, when water is cooled to form ice, the mass of water should
A
increase
B
remain unchanged
C
decrease
D
first increase then decrease
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
At what temperature is the $$r.m.s$$ velocity of a hydrogen molecule equal to that of an oxygen molecule at $${47^ \circ }C?$$
A
$$80K$$
B
$$-73$$ $$K$$
C
$$3$$ $$K$$
D
$$20$$ $$K$$
3
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
In a simple harmonic oscillator, at the mean position
A
kinetic energy is minimum, potential energy is maximum
B
both kinetic and potential energies are maximum
C
kinetic energy is maximum, potential energy is minimum
D
both kinetic and potential energies are minimum.
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
Moment of inertia of a circular wire of mass $$M$$ and radius $$R$$ about its diameter is
A
$${{M{R^2}} \over 2}$$
B
$$M{R^2}$$
C
$$2M{R^2}$$
D
$${{M{R^2}} \over 4}$$

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