1
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A carnot engine takes $$3 \times {10^6}$$ cal. of heat from a reservoir at $${627^ \circ }C,$$ and gives it to a sink at $${27^ \circ }C$$. The work done by the engine is
A
$$4.2 \times {10^6}J$$
B
$$8.4 \times {10^6}J$$
C
$$16.8 \times {10^6}J$$
D
zero
2
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
The earth radiates in the infra-red region of the spectrum. The spectrum is correctly given by
A
Rayleigh Jeans law
B
Planck's law of radiation
C
Stefan's law of radiation
D
Wien's law
3
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Which statement is incorrect?
A
all reversible cycles have same efficiency
B
reversible cycle has more efficiency than an irreversible one
C
Cannot cycle is a reversible one
D
Cannot cycle has the maximum efficiency in all cycles.
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
Infrared radiation is detected by
A
spectrometer
B
pyrometer
C
nanometer
D
photometer
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