1st Year Fsc Physics Online Test With Answers

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1st Year Fsc Physics Online Test

Sr. # Questions Answers Choice
1 In case of point source the shape of wave front is Circular Spherical Elliptical Square
2 Light waves emitted from a source spread in Specific direction All direction Upward direction None of these
3 Young in 1801 performed experiment for the first time about Interference Diffraction Polarization Particle nature of light
4 Which of the following is evidence of wave nature of light Interference Diffraction Polarization All of these
5 Huygen's proposed, light energy travels in space from source in 1578 1678 1778 1868
6 In stationary waves, the particle velocity at nodes is Minimum Maximum Zero Constant
7 When ever the path difference between the waves is integral multiple of half the wavelength, interference will be Constructive Destructive (-)ve (+) ve
8 When two waves of same frequency travel in opposite direction, the phenomenon will be Diffraction Stationary waves Polarization Interference
9 When two waves having same frequency traveling in same direction combine, phenomenon is called Wave motion Combination of waves Interference Diffraction
10 The distance between the consecutive nodes is
11 When the amplitude of a wave become double, its energy becomes One half Two times Three times Four times
12 The distance between two consecutive crests of troughs is called Time period Wave length Frequency Displacement
13 The speed of sound increases with the increase of in Pressure Volume Temperature Density
14 The experimental value for the velocity of sound in air is 233 m-sec<sup>-1</sup> 333 m-sec<sup>-1</sup> 433 m-sec<sup>-1</sup> 533 m-sec<sup>-1</sup>
15 Who did give the correct formula for the speed of sound in air? Boyle Laplace Newton Einstein
16 The Newton's formula for the speed of sound in air is
17 Which of the following is mechanical wave Heat Light Sound None of these
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