GATE (Graduate Aptitude Test in Engineering) Physics: Questions 257  259 of 622
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 622 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 350.00 or
Question number: 257
» Thermodynamics and Statistical Physics » Laws of Thermodynamics
Appeared in Year: 2011
Question
A Carnot cycle operates on a working substance between two reservoirs at temperatures and with . During each cycle an amount of heat is extracted from the reservoir at and an amount is delivered to the reservoir at . What of the following statements is incorrect?
Choices
Choice (4)  Response  

a.  Entropy of the hotter reservoir decreases 

b.  Work done in 1 cycle is 

c. 


d.  Entropy of the universe (consisting of the working substance and the two reservoirs) increases 

Question number: 258
» Thermodynamics and Statistical Physics » Classical and Aquantum Statistics
Appeared in Year: 2011
Question
If the isothermal compressibility of a solid is , the pressure required to increase its density by is approximately
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 259
» Mathematical Physics » Fourier Analysis
Appeared in Year: 2013
Question
is a symmetric periodic function of i. e. . Then, in general, the Fourier series of the function will be of the form,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

