1
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
A body of weight 72 N moves from the surface of earth at a height half of the radius of earth, then gravitational force exerted on it will be
A
36 N
B
32 N
C
144 N
D
50 N
2
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
A black body has maximum wavelength $$\lambda $$m at 2000 K. Its corresponding wavelength at 3000 K will be
A
$${3 \over 2}{\lambda _m}$$
B
$${2 \over 3}{\lambda _m}$$
C
$${{16} \over {81}}{\lambda _m}$$
D
$${{81} \over {16}}{\lambda _m}$$
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
$$f = {1 \over {\gamma + 1}}$$
4
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
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