Stellar Sensor Design MCQ

Test your knowledge with important Stellar Sensor Design MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Stellar Sensor Design MCQs at Bissoy

• The threshold level of star detection is a function of _________
  ক

  Star brightness

  খ

  Star position fix

  গ

  Star size

  ঘ

  Sky view
• The use of ______ allows a small sky background view with a large telescopic field view?
  ক

  CCD

  খ

  CVF

  গ

  VVR

  ঘ

  CSK
• The photovoltaic or photoconductive detectors are packaged as ___________
  ক

  Star detectors

  খ

  Star position fixer

  গ

  Charge coupled devices

  ঘ

  Photon coupled devices
• The ratio of the photons converted to signal generating electrons to the total number of photons arriving is called as?
  ক

  Quantum efficiency

  খ

  Photon ratio

  গ

  Conversion ratio

  ঘ

  Photons to electron ratio
• The effect of night sky background effect is negligible with respect to star power.
  ক

  True

  খ

  False
• The sky background power does not depend on _______
  ক

  Effective entrance area to the telescope

  খ

  Field of view of the telescope

  গ

  Background radiance

  ঘ

  Intensity of observing star
• The star signal power does not depend on _____________
  ক

  Spectral irradiance of stellar light

  খ

  Spectral response of the light detector

  গ

  Brightness of the star

  ঘ

  Size of the star
• Anti reflection coated optics reduce __________
  ক

  Optical transmission losses

  খ

  Reflection angle

  গ

  Refraction

  ঘ

  Intensity of star image
• Star signal power is directly proportional to an effective area of a telescope.
  ক

  True

  খ

  False
• The ratio of the focal length to aperture is called the __________
  ক

  Critical aperture

  খ

  Effective aperture

  গ

  Focal number

  ঘ

  f/ number
• The physical size of the star depends upon __________
  ক

  Angular size of image

  খ

  Intensity of image

  গ

  Colour of image

  ঘ

  Shape of image
• What is the image of the star at the focal plane called as?
  ক

  Star fixed image

  খ

  Celestial interference image

  গ

  Diffraction limited image

  ঘ

  Spot image
• What is the physical diameter of the first optical element in the telescope?
  ক

  Optical aperture

  খ

  Field of view

  গ

  Effective focal length

  ঘ

  Light detector
• Which of the following uses lens and mirrors for focusing?
  ক

  Refractive

  খ

  Reflecting

  গ

  Catadioptric

  ঘ

  Orthogonal