CSIR Physical Sciences: Questions 301 - 304 of 389

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 389 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 250.00 or

Question number: 301

» Thermodynamic and Statistical Physics » Bose-Einstein Condensation

Appeared in Year: 2012

MCQ▾

Question

Bose condensation occurs in liquid He4 kept at ambient pressure at 2.17K . At which temperature will Bose condensation occur in He4 in gaseous state, the density of which is 1000 times smaller than that of liquid He4 ?

(Assume that it is a perfect Bose gas) (June)

Choices

Choice (4) Response
a.

21.7μk

b.

2.17μk

c.

21.7mk

d.

2.17mk

Question number: 302

» Nuclear and Particle Physics » Rotational Spectra

Appeared in Year: 2012

MCQ▾

Question

The first absorption spectrum of 12C16O is at 3.842cm1 while that of 13C16O is at 3.673cm1 . The ratio of their moments of inertia is – (June)

Choices

Choice (4) Response
a.

1.286

b.

1.851

c.

1.046

d.

1.038

Question number: 303

» Classical Mechanics » Special Theory of Relativity » Relativistic Kinematics

Appeared in Year: 2012

MCQ▾

Question

What is the proper time interval between the occurrences of two events if in one inertial frame the events are separated by 7.5×105km and occurs 6.5s apart? (June)

Choices

Choice (4) Response
a.

6.50s

b.

6.00s

c.

5.00s

d.

5.75s

Question number: 304

» Nuclear and Particle Physics » C, P and T Invariance

Appeared in Year: 2012

MCQ▾

Question

Consider the following particle: the proton p , the neutron n , pion π0 and the delta resonance Δ+ . When ordered arrangement is as follows –

(December)

Choices

Choice (4) Response
a.

Δ+,n,π0,p

b.

π0,n,p,Δ+

c.

p,n,Δ+,π0

d.

p,n,π0,Δ+

Sign In