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JAM 2023 Confidential Physics (PH) 
PH 4/49 
Section A: Q.1 – Q.10 Carry ONE mark each. 
Q.1 For a cubic unit cell, the dashed arrow in which of the following figures represents 
the direction [220]? 
(A) 
 
(B) 
 
(C) 
 
(D) 
 
  
  
  
Page 2


JAM 2023 Confidential Physics (PH) 
PH 4/49 
Section A: Q.1 – Q.10 Carry ONE mark each. 
Q.1 For a cubic unit cell, the dashed arrow in which of the following figures represents 
the direction [220]? 
(A) 
 
(B) 
 
(C) 
 
(D) 
 
  
  
  
JAM 2023 Confidential Physics (PH) 
PH 5/49 
Q.2 Which of the following fields has non-zero curl?  
(A) 
?? ?? ^+ ?? ?? ^ + ?? ?? ^
 
(B) 
(?? + ?? )?? ^ + (?? + ?? )?? ^ + (?? + ?? )?? ^
 
(C) 
?? 2
?? ^ + (2???? + ?? 2
)?? ^ + 2???? ?? ^
 
(D) 
???? ?? ^ + 2???? ?? ^ + 3???? ?? ^
 
  
  
Q.3 Which of the following statements about the viscosity of a dilute ideal gas is 
correct?  
(A) It is independent of pressure at fixed temperature 
(B) It increases with increasing pressure at fixed temperature 
(C) It is independent of temperature 
(D) It decreases with increasing temperature 
  
  
Page 3


JAM 2023 Confidential Physics (PH) 
PH 4/49 
Section A: Q.1 – Q.10 Carry ONE mark each. 
Q.1 For a cubic unit cell, the dashed arrow in which of the following figures represents 
the direction [220]? 
(A) 
 
(B) 
 
(C) 
 
(D) 
 
  
  
  
JAM 2023 Confidential Physics (PH) 
PH 5/49 
Q.2 Which of the following fields has non-zero curl?  
(A) 
?? ?? ^+ ?? ?? ^ + ?? ?? ^
 
(B) 
(?? + ?? )?? ^ + (?? + ?? )?? ^ + (?? + ?? )?? ^
 
(C) 
?? 2
?? ^ + (2???? + ?? 2
)?? ^ + 2???? ?? ^
 
(D) 
???? ?? ^ + 2???? ?? ^ + 3???? ?? ^
 
  
  
Q.3 Which of the following statements about the viscosity of a dilute ideal gas is 
correct?  
(A) It is independent of pressure at fixed temperature 
(B) It increases with increasing pressure at fixed temperature 
(C) It is independent of temperature 
(D) It decreases with increasing temperature 
  
  
JAM 2023 Confidential Physics (PH) 
PH 6/49 
Q.4 The plot of the function ?? (?? )= ||?? | - 1| is      
(A) 
 
(B) 
 
(C) 
 
(D) 
 
  
  
Page 4


JAM 2023 Confidential Physics (PH) 
PH 4/49 
Section A: Q.1 – Q.10 Carry ONE mark each. 
Q.1 For a cubic unit cell, the dashed arrow in which of the following figures represents 
the direction [220]? 
(A) 
 
(B) 
 
(C) 
 
(D) 
 
  
  
  
JAM 2023 Confidential Physics (PH) 
PH 5/49 
Q.2 Which of the following fields has non-zero curl?  
(A) 
?? ?? ^+ ?? ?? ^ + ?? ?? ^
 
(B) 
(?? + ?? )?? ^ + (?? + ?? )?? ^ + (?? + ?? )?? ^
 
(C) 
?? 2
?? ^ + (2???? + ?? 2
)?? ^ + 2???? ?? ^
 
(D) 
???? ?? ^ + 2???? ?? ^ + 3???? ?? ^
 
  
  
Q.3 Which of the following statements about the viscosity of a dilute ideal gas is 
correct?  
(A) It is independent of pressure at fixed temperature 
(B) It increases with increasing pressure at fixed temperature 
(C) It is independent of temperature 
(D) It decreases with increasing temperature 
  
  
JAM 2023 Confidential Physics (PH) 
PH 6/49 
Q.4 The plot of the function ?? (?? )= ||?? | - 1| is      
(A) 
 
(B) 
 
(C) 
 
(D) 
 
  
  
JAM 2023 Confidential Physics (PH) 
PH 7/49 
Q.5 A system has ?? spins, where each spin is capable of existing in 4 possible states. 
The difference in entropy of disordered states (where all possible spin 
configurations are equally probable) and ordered states is                              
(A) 2(?? - 1)?? B
ln2 
(B) (?? - 1)?? B
ln2 
(C) 4?? B
ln?? 
(D) ?? ?? B
ln2 
  
  
Page 5


JAM 2023 Confidential Physics (PH) 
PH 4/49 
Section A: Q.1 – Q.10 Carry ONE mark each. 
Q.1 For a cubic unit cell, the dashed arrow in which of the following figures represents 
the direction [220]? 
(A) 
 
(B) 
 
(C) 
 
(D) 
 
  
  
  
JAM 2023 Confidential Physics (PH) 
PH 5/49 
Q.2 Which of the following fields has non-zero curl?  
(A) 
?? ?? ^+ ?? ?? ^ + ?? ?? ^
 
(B) 
(?? + ?? )?? ^ + (?? + ?? )?? ^ + (?? + ?? )?? ^
 
(C) 
?? 2
?? ^ + (2???? + ?? 2
)?? ^ + 2???? ?? ^
 
(D) 
???? ?? ^ + 2???? ?? ^ + 3???? ?? ^
 
  
  
Q.3 Which of the following statements about the viscosity of a dilute ideal gas is 
correct?  
(A) It is independent of pressure at fixed temperature 
(B) It increases with increasing pressure at fixed temperature 
(C) It is independent of temperature 
(D) It decreases with increasing temperature 
  
  
JAM 2023 Confidential Physics (PH) 
PH 6/49 
Q.4 The plot of the function ?? (?? )= ||?? | - 1| is      
(A) 
 
(B) 
 
(C) 
 
(D) 
 
  
  
JAM 2023 Confidential Physics (PH) 
PH 7/49 
Q.5 A system has ?? spins, where each spin is capable of existing in 4 possible states. 
The difference in entropy of disordered states (where all possible spin 
configurations are equally probable) and ordered states is                              
(A) 2(?? - 1)?? B
ln2 
(B) (?? - 1)?? B
ln2 
(C) 4?? B
ln?? 
(D) ?? ?? B
ln2 
  
  
JAM 2023 Confidential Physics (PH) 
PH 8/49 
Q.6 Temperature (?? ) dependence of the total specific heat (?? v
) for a two dimensional 
metallic solid at low temperatures is  
(A) 
 
(B) 
 
(C) 
 
(D) 
 
  
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29 docs|48 tests
29 docs|48 tests
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