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Wave Optics Test - 55
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Wave Optics Test - 55
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  • Question 1/10
    4 / -1
    A point source of electromagnetic radiation has an average power output of 800 W. The maximum value of electric field at a distance 4.0 m from the source is
    Solutions

  • Question 2/10
    4 / -1
    A wave is propagating in a medium of electric dielectric constant 2 and relative magnetic permeability 50. The wave impedance of such a medium is
    Solutions

  • Question 3/10
    4 / -1
    A plane electromagnetic wave of wave intensity 6 W/m2 strikes a small mirror area 40 cm2, held perpendicular to the approaching wave. The momentum transferred by the wave to the mirror each second will be
    Solutions

  • Question 4/10
    4 / -1
    A 20 cm length of a certain solution causes right handed rotation of 38°. A 30 cm length of another solution causes left handed rotation of 24°. The optical rotation caused by 30 cm length of a mixture of the above solution in the volume 1 : 2 is
    Solutions

  • Question 5/10
    4 / -1
    A beam of natural light falls on a system of polaroids, which are arranged in succession such that each polaroid is turned through 30° with respect to the preceding one. The percentage of incident intensity that passes through the system will be
    Solutions

  • Question 6/10
    4 / -1
    A beam of plane polarized light falls normally on a polarizer of cross sectional area 3 × 10–4m2. Flux of energy of incident ray in 10–3W. The polarizer rotates with an angular frequency of 31.4 rad/s. The energy of light passing through the polarizer per revolution will be
    Solutions

  • Question 7/10
    4 / -1
    In a YDSE bi-chromatic light of wavelengths 400 nm and 560 nm used. The distance between the slit is 0.1 mm and the distance between the plane of the slits and the screen is lm. The minimum distance between two successive regions of complete darkness is
    Solutions

  • Question 8/10
    4 / -1
    The maximum number of possible interference maxima for slit-separation equal to twice the wavelength in Young\'s double-slit experiment is
    Solutions

  • Question 9/10
    4 / -1
    The k line of singly ionised calcium has a wavelength of 393.3 nm as measured on earth. In the spectrum of one of the observed galaxies, this spectral line is located at 401.8 nm. The speed with which the galaxy is moving away from us, will be
    Solutions

  • Question 10/10
    4 / -1
    A Young\'s double slit experiment uses a monochromatic source. The shape of the interference fringes formed on a screen is
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