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The GHRS was a spectrograph designed to operate in the ___________.

physics universe and space science xx radio telescope and space telescopes launching vehicles optical instruments : telescope

  1. infrared

  2. ultraviolet

  3. visible

  4. none of the above

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Correct Option: B
Explanation:

The GHRS was a spectrograph designed to operate in ultraviolet light. It was installed on the Hubble Space Telescope during its original constructing and it was launched into space as a part of the space telescope abroad the space shuttle on April 24,1990.

To fit the COSTAR system onto the telescope, one of the other instruments had to be removed, and astronomers selected the________________________to be sacrificed.

physics universe and space science xx radio telescope and space telescopes launching vehicles optical instruments : telescope

  1. CCD

  2. HOST

  3. High Speed Photometer

  4. none of the above

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Correct Option: C
Explanation:

To fit the COSTAR system onto the telescope one of the other instruments had to be removed, and astronomer selected the High Speed Photometer (HSP) to be sacrificed.

Hubble's four main instruments observe in the near

physics universe and space science xx radio telescope and space telescopes launching vehicles optical instruments : telescope

  1. ultraviolet range

  2. infrared range.

  3. red wavelength range

  4. yellow wavelength range

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Correct Option: A,B
Explanation:

The instruments of hubble that analyses light from the universe such as cameras, spectrographs and inter ferometers helps in observing the near UV (ultraviolet range) to IR (infrared range).

Which of the following instruments is used for seeing details of celestial bodies?

physics universe and space science xx radio telescope and space telescopes launching vehicles optical instruments : telescope

  1. Spectroscope

  2. Periscope

  3. Microscope

  4. Telescope

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Correct Option: D
Explanation:

Clearly Telescope instrument used for seeing details of celestial bodies.

The Hubble Space Telescope is designed with ____________  hyperbolic mirrors is known for good imaging performance over a wide field of view. 

physics universe and space xx radio telescope and space telescopes optical instruments : telescope

  1. two

  2. four

  3. three

  4. many

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Correct Option: A
Explanation:

Hubble space telescope is reflecting telescope it is designed with TWO hyperbolic mirrors. A curved primary mirror is the basic optical element that creates an image at the focal plane. And secondary mirror was added to modify the optical characteristics for visual observation.

Which among the following is not true for Hubble ST?

physics universe and space xx radio telescope and space telescopes optical instruments : telescope

  1. Hubbles observations found that black holes are common to the centers of all galaxies.

  2. Hubble's Telescope was first to found the traces of water on Earth.

  3. Hubble Deep field and Hubble Ultra Deep Field images reveal galaxies that are billions of light-years away.

  4. Astronauts used the telescope to observe distant supernovae.

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Correct Option: B
Explanation:

We know that Earth has water, blue planet, 71% of Earth's surface is covered in water. Hubble telescope was definitely not the first to found the traces of water on Earth. 

What is full form of GMRT ?

physics observing space: telescopes xx radio telescope and space telescopes optical instruments : telescope

  1. Ground Mobile Receive Terminal

  2. Geometric Mean Reciprocal Titer

  3. Giant Metrewave Radio Telescope

  4. General Maintenance and Repair Technician

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Correct Option: C
Explanation:

Giant Metrewave Radio Telescope (GMRT).

In an oscilloscope the vertical deflecting plates deflect the electron beam in a vertical plane.

physics option c: imaging xx radio telescope and space telescopes optical instruments : telescope

  1. True

  2. False

  3. Nither

  4. Either

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Correct Option: A

An observer looks at a distant tree of height 10 m with a telescope of magnifying power of 20. To the observer the tree appears:

physics observing space: telescopes xx radio telescope and space telescopes optical instruments : telescope

  1. 10 times taller .

  2. 10 times nearer .

  3. 20 times taller .

  4. 20 times nearer .

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Correct Option: D

The focal length of objective and eye-piece of a telescope are $200\ cm$ and $5\ cm$ respectively. Final image is formed at least distance of distinct vision. The magnification of telescope is

physics option c: imaging xx radio telescope and space telescopes optical instruments : telescope

  1. $20$

  2. $24$

  3. $30$

  4. $48$

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Correct Option: D