Hubble Telescope

Q.

Why goggles (Sun glasses) have zero power even though their surfaces are curved? [2 MARKS]

Q.

Optical Telescopes are also known as ___.

1. Operating Telescope

2. Reflecting Telescope

3. Refracting Telescope

4. All of the above

Q.

A certain X- ray telescope is named after scientist ___ .

Q. World's largest telescope is situated in ___.

Q. The Hubble Space Telescope was launched by NASA in

1. 2001
2. 1975
3. 1990
4. 2015

Q. State some of the satellites and their uses.

Q.

Are supernovas Plasma?

Q. Which of the following was launched by NASA?

1. EDUSAT satellite
2. Astrosat satellite
3. INSAT satellite
4. Hubble Telescope

Q. Which of the following is not a fact about Hubble Telescope?

1. The Hubble Space Telescopes captures and transmits colorful images of objects in space such as dying stars and other galaxies.
2. Although the Hubble Space Telescope can observe many things in space, it cannot observe the Sun or Mercury.
3. The Hubble Space Telescope orbits about 353 miles above Earth
4. None of the above

Q. The Hubble Space Telescope is scheduled to retire in which of the following year?

1. 2012
2. 2013
3. 2014
4. 2015

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

1. Spectroscope
2. Periscope
3. Microscope
4. Telescope

Q. When was the Hubble telescope launched?

1. 1969
2. 1990
3. 2015
4. 2001

Q. Which of the following is not a part of HST?

1. Advanced Camera for Surveys (ACS).
2. Faint Object Camera (FOC)
3. Computer-controlled polishing machines
4. Faint Object Spectrograph (FOS).

Q. The Corrective Optics Space Telescope Axial Replacement (COSTAR) system was designed to correct the _______________________ for light focused at the FOC, FOS, and GHRS.

1. visual aberration
2. spherical aberration
3. diffraction
4. none of the above

Q. Which of the following is an early drawback of HST?

1. Its ground control system.
2. Hubble failed to achieve a final sharp focus and the best image quality obtained was drastically lower.
3. Images of point sources spread out over a radius of more than one arcsecond.
4. All of the above

Q. State some of the satellites and their uses.

Q. The diameter of the mirror used in the Hubble Space Telescope is

1. 94 inches
2. 56 inches
3. 82 inches
4. 104 inches

Q. The ratio of resolving power of telescope, when lights of wavelength $4400\stackrel{o}{A}$ and $5500\stackrel{o}{A}$ are used, is _________.

1. $5:4$
2. $4:5$
3. $9:1$
4. $16:25$

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

1. infrared
2. ultraviolet
3. visible
4. none of the above

Q. The unique window(s) on the Universe enabled by Hubble is/are :

1. Hubble Deep Field
2. Hubble Ultra-Deep Field
3. Hubble Extreme Deep Field
4. All of the above

Q. Assertion :The Corrective Optics Space Telescope Axial Replacement (COSTAR) system was designed to correct the spherical aberration for light focused at the FOC, FOS, and GHRS. Reason: It consists of two mirrors in the light path with one ground to correct the aberration.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Assertion :Observations cannot take place when the telescope passes through the South Atlantic Anomaly. Reason: It is not possible due to elevated radiation levels, and there are also sizable exclusion zones around the Sun (precluding observations of Mercury), Moon and Earth.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Fill in the blank.
Hubble transmits about _____ of raw science data every week.

1. 140 gigabits
2. 100 gigabits
3. 200 gigabits
4. 180 gigabits

Q. Hubble's four main instruments observe in the near

1. ultraviolet range
2. infrared range.
3. red wavelength range
4. yellow wavelength range

Q. Which among the following is not true for Hubble ST?

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.

Q. Hubble telescope is orbiting around the earth at height of _______.

1. 589 km
2. 421 km
3. 201 km
4. 992 km

Q. Assertion :Because of the way the HST's instruments is designed, two different sets of correctors are required. Reason: Wide field and planetary camera 2 are the correctors used.

1. Both Assertion and Reason are calreadyorrect and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Astronomical data taken with ________________ must undergo several calibration steps before they are suitable for astronomical analysis

1. HOST
2. CCD
3. CCR
4. none of the above

Q. The image formed by the telescope in normal adjustment position is at :

1. $2D$
2. $D$
3. $F$
4. $\text{Infinity}$