CSIR Physical Sciences: Questions 273  276 of 401
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Question number: 273
» Electromagnetic Theory » Reflection and Refraction
Appeared in Year: 2014
Question
A beam of light of frequency is reflected from a dielectric – metal interface at normal incidence. The refractive index of the dielectric medium is and that of the metal is . If the beam is polarized parallel to the interface, then the phase change experienced by the light upon reflection is – (June – 2014)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 274
» Nuclear and Particle Physics » Binding Energy
Appeared in Year: 2013
Question
The binding energy of a light nucleus (Z, A) in MeV is given by the approximate formula, where is the neutron number. The value of Z of the most stable isobar for a given A is – (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 275
» Classical Mechanics » Generalized Coordinates
Appeared in Year: 2013
Question
The numbers of degrees of freedom of a rigid body in d space – dimension is – (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  6 

Question number: 276
» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications
Appeared in Year: 2013
Question
Let four point charges be placed at the vertices of a square of side . Let another point charge be placed at the centre of the square (see the figure)
Let be the electrostatic potential at a point P at a distance from the centre of the square. Then is – (December – 2013)
Choices
Choice (4)  Response  

a. 


b. 


c.  1 

d. 

