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Thermodynamics [AIIMS (All India Institute of Medical Sciences) Physics]: Questions 1 - 5 of 7
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Question 1
Appeared in Year: 2006
Question MCQ▾
Two balloons are filled, one with pure He gas and the other by air, respectively. If the pressure and temperature of these balloons are same then the number of molecules per unit volume is –
[AIIMS , UPCPMT 06]
Choices
Choice (4) | Response | |
---|---|---|
a. | same in both balloons | |
b. | more in air filled balloon | |
c. | in the ratio of 1: 4 | |
d. | more in the He filled balloon |
Question 2
Appeared in Year: 2001
Question MCQ▾
From the following which depends on the path –
Choices
Choice (4) | Response | |
---|---|---|
a. | Internal energy | |
b. | V | |
c. | ||
d. | P |
Question 3
Appeared in Year: 2001
Question MCQ▾
If the system takes 100 Cal. heat, and releases 80 cal. to sink, if source temperature is 127°C find the sink temp –
Choices
Choice (4) | Response | |
---|---|---|
a. | 107°C | |
b. | 47°C | |
c. | 67°C | |
d. | 127°C |
Question 4
Question MCQ▾
If the system takes 160 Cal. heat, and releases 100 cal. to sink, if source temperature is 180°C find the sink temp –
Choices
Choice (4) | Response | |
---|---|---|
a. | 120°celsius | |
b. | 30°celsius | |
c. | 10°celsius | |
d. | 100°celsius |
Question 5
Question MCQ▾
As in figure below shows plates of same size but of two different materials A and B are connected end to end in thermal contact. The open end of A is kept at and open end of B is kept at . The ratio of thermal conductivity of A and B is given as .
The steady – state temperature of the interface is -
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |