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1A = …………. mu A....

1A = ………….` mu A`.

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`10^6`
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1mu A = ………. mA

A ray of light travelling in a medium of refractive index mu is incident at an angle theta on a composite transparent plate consisting of 50 plates of R.I 1.01 mu, 1.02 mu , 1.03 mu ……… , 1.50 mu . The ray emerges from the composite plate into a medium of refractive index 1.6 mu at angle 'x' . Then :

A screen is at distance D = 80 cm form a diaphragm having two narrow slits S_(1) and S_(2) which are d = 2 mm apart. Slit S_(1) is covered by a transparent sheet of thickness t_(1) = 2.5 mu m slit S_(2) is covered by another sheet of thikness t_(2) = 1.25 mu m as shown if Fig. 2.52. Both sheets are made of same material having refractive index mu = 1.40 Water is filled in the space between diaphragm and screen. Amondichromatic light beam of wavelength lambda = 5000 Å is incident normally on the diaphragm. Assuming intensity of beam to be uniform, calculate ratio of intensity of C to maximum intensity of interference pattern obtained on the screen (mu_(w) = 4//3)

bar(d)=lambda(bar(a)xx bar(b))+mu(bar(b)xx bar( c ))+v(bar( c )xx bar(a)) and [bar(a)bar(b)bar( c )]=(1)/(8) then lambda+mu+v = …………..

L = 8.1 mH, C = 12.5 mu F and R = 100 Omega are connected in series with A.C. source of 230 V and frequency 500 Hz. Calculate voltage across two ends of resistance.

The sketch below shows cross-sections of equipotential surface between two charged conductors that are shown in solid black. Some points one the euquipotential surface near the conductors are marked as A, B, C ………. The arrangement lies in air. ["Take " in_(0)=8.85xx10^(-12) C^(2)//N m^(2)] How much work is required to slowly move a -1 mu C charge from E to D?

A right angled prism of refractive index mu_(1) is placed in a rectangular block of refractive index mu_(2) , which is surrounded by a medium of refractive index mu_(3) ,as shown in the figure . A ray of light 'e' enters the rectangular block at normal incidence . depending upon the relationship between mu_(1) , mu_(2) "and" mu_(3) , it takes one of the four possible paths 'ef' , 'eg' , 'eh' or 'ef' Match the paths in List I with conditions of refractive indices in List II and select the correct answer using the codes given below the lists: {:("List" I , "List" II) , ( P. e rarr f , 1. mu_(1)gt sqrt(2mu_(2))) , ( Q. e rarr g , 2. mu_(2) gt mu_(1) "and" mu_(2) gt mu_(3)), ( R. e rarr f , 3. mu_(1) = mu_(2)), ( S. e rarr f , 4. mu_(2) lt mu_(1) lt sqrt(2mu_(2)) "and" mu_(2) gt mu_(3)):} Codes : {:( P , Q , R , S) , ((A) 2 , 3 , 1 , 4), ((B) 1 , 2 , 4 , 3) , ((C) 4 , 1 , 2 , 3) , ((D) 2, 3 , 4 , 1):}

In a series L-C-R circuit R = 100 Omega , L = 1H and C= 1 mu E The half power bandwidth is ……..

Speed of electromagnetic wave in a medium of in_(r )=1.3 and mu_(r )=2.14 is ……. .

bar(a)=(1,2,-3),bar(b)=(2,1,-1) . The vector bar(mu) is such that bar(a)xx bar(mu)=bar(a)xx bar(b) and bar(a).bar(mu)=0 then |bar(mu)| = ………..