1
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
$$20$$ $$K$$
2
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
3
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
Heat given to a body which raises its temperature by $${1^ \circ }C$$ is
A
water equivalent
B
thermal capacity
C
specific heat
D
temperature gradient
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is more close to a black body?
A
black board paint
B
green leaves
C
black holes
D
red roses

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