1
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
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
Cooking gas containers are kept in a lorry moving with uniform speed. The temperature of the gas molecules inside will
A
increase
B
decrease
C
remain same
D
decrease for some, while increase for others
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Even Carnot engine cannot give $$100\% $$ efficiency because we cannot
A
prevent radiation
B
find ideal sources
C
reach absolute zero temperature
D
eliminate friction.
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