Physics Fsc Part 1 Chapter 9 Online Test With Answers

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Physics Fsc Part 1 Chapter 9 Online Test

Sr. # Questions Answers Choice
1 Angle between ray of light and wave front is 0 <sup>o</sup> 60 <sup>o</sup> 90 <sup>o</sup> 120 <sup>o</sup>
2 The light energy travels in space as waves was firstly proposed by Maxwell Young Einsten Hydrogen
3 Soap film is sunlight appears coloured due to. Dispersion of light Diffraction of light Scattering of light Interference fo light
4 According to Huygen's principle the points on primary wave front can be considered as Secondary wavelets Ray of light Source of light None of these
5 Interplaner distance can be determined by Newton's rings Bragg's law Diffraction pattern Interferometer
6 The Bragg's equation is given by
7 The property of bending of light around obstacles is Interference Diffraction Polarization Superposition
8 In young's double slit experiment for the interference the central region will be Dark Bright Coloured None of these
9 Standard metal according to Michelson's interferometer is equivalent to 1553163.5 wave meter 3 x 108meter 15503000 meter None of these
10 The centre of Newton's rings will be Dark Bright Coloured Not visible
11 Dark fringes are also called as Minima Maxima Wave front Ray of light
12 Bright fringes are also called as Minima Maxima Wave front Ray of light
13 Oil film floating on water exhibits colours due to Interference Diffraction Polarization All of these
14 The distance between two consecutive wave front is equal to One wave length Two wave length Half wave length Three wave length
15 A ray of light is a line Parallel to wave front Normal to wave front Anti-parallel to wave Any one of these
16 In case of point source the shape of wave front is Circular Spherical Elliptical Square
17 Light waves emitted from a source spread in Specific direction All direction Upward direction None of these
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