Electricity
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Modern Physics
Semiconductor Electronics
MCQ (Single Correct Answer)
1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A scientist says that the efficiency of his heat engine which work at source temperature 127oC and sink temperature 27oC is 26%, then
A
it is impossible
B
it is possible but less probable
C
it is quite probable
D
data are incomplete.
2
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
The (W/Q) of a Carnot engine is 1/6, now the temperature of sink is reduced by 62oC, then this ratio becomes twice, therefore the initial temperature of the sink and source are respectively
A
33oC, 67oC
B
37oC, 99oC
C
67oC, 33oC
D
97 K, 37 K
3
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
To find out degree of freedom, the expansion is
A
$$f = {2 \over {\gamma - 1}}$$
B
$$f = {{\gamma + 1} \over 2}$$
C
$$f = {2 \over {\gamma + 1}}$$
D
$$f = {1 \over {\gamma + 1}}$$
NEET Subjects