1
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
A geostationary satellite is orbiting the earth at a height of 5R above the surface of the earth, R being the radius of the earth. The time period of another satellite in hours at a height of 2R from the surface of the earth is
A
5
B
10
C
6$$\sqrt 2 $$
D
$${6 \over {\sqrt 2 }}$$
2
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Liquid oxygen at 50 K is heated to 300 K at constant pressure of 1 atm. The rate of heating is constant. Which one of the following graphs represents the variation of temperature with time ?
A
AIPMT 2012 Prelims Physics - Properties of Matter Question 43 English Option 1
B
AIPMT 2012 Prelims Physics - Properties of Matter Question 43 English Option 2
C
AIPMT 2012 Prelims Physics - Properties of Matter Question 43 English Option 3
D
AIPMT 2012 Prelims Physics - Properties of Matter Question 43 English Option 4
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
If the radius of a star is R and it acts as a black body, what would be the temperature of the star, in which the rate of energy production is Q?
A
$${Q \over {4\pi {R^2}\sigma }}$$
B
$${\left( {{Q \over {4\pi {R^2}\sigma }}} \right)^{ - 1/2}}$$
C
$${\left( {{{4\pi {R^2}Q} \over \sigma }} \right)^{1/4}}$$
D
$${\left( {{Q \over {4\pi {R^2}\sigma }}} \right)^{1/4}}$$
4
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
One mole of an ideal gas goes from an initial state A to final state B via two processes : It first undergoes isothermal expansion from volume V to 3V and then its volume is reduced from 3V to V at constant pressure. The correct P-V diagram representing the two process is
A
AIPMT 2012 Prelims Physics - Heat and Thermodynamics Question 47 English Option 1
B
AIPMT 2012 Prelims Physics - Heat and Thermodynamics Question 47 English Option 2
C
AIPMT 2012 Prelims Physics - Heat and Thermodynamics Question 47 English Option 3
D
AIPMT 2012 Prelims Physics - Heat and Thermodynamics Question 47 English Option 4
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