C:-in the position space
D:-none of the above
Correct Answer:- Option-A
Question40:-Which of the following is NOT a first order phase transition ?
A:-transition from liquid to vapour
B:-transition from solid to vapour
C:-transition from ferromagnet to paramagnet
D:-melting of ice to liquid
Correct Answer:- Option-C
Question41:-To get vibrational spectra of molecule, it must involve
A:-a change in structure
B:-a change in force
C:-a change in electronic state
D:-a change in dipolemoment
Correct Answer:- Option-D
Question42:-The correct expression for rotational energy of a rotating molecule
A:>(JQ+1)h*(2))/(8pil)”
(1+1)11^ (2))/(801^(2)।)
©: (+ 1)1^(2))/(801^(2)) `
5: ^ (2))/(8011^ (2). `` ` ` ` ` ` `
Correct Answer:- Option-B
Question43:-Water is a
A:-spherical top molecule
B:-symmetric top molecule
C:-linear molecule
D:-asymmetric top molecule
Correct Answer:- Option-D
Question44:-How many Bravai's Lattices exists for seven crystal system ?
‏7ھ‎
‎8-0
‎C:-13
‎D:-14
‎Correct Answer:- Option-D
Question45:-The specific heat of a superconductor
A:-decreases linearly temperature
B:-varies exponentially with temperature
C:-is independent of temperature
D:-increases linearly with temperature
Correct Answer:- Option-B
Question46:-Which is the wrong relation ?
A:- beta’ =*(alpha)/(1-alpha)*
LC = ‘beta | 8` +| 6६0

ور اس ‎B‏

‎ee‏ یسل سی سوسسےے

‎

‎C:-
‎D:LC_E_O° = *(1)1-alpha)l_C*
Correct Answer:- Option-D