Consider the following statements about the Hubble Space Telescope (HST):

1. It operates mainly in the visible, ultraviolet, and near-infrared wavelengths.

2. It is placed in a geostationary orbit above the Earth.

3. It has contributed to measuring the rate of expansion of the Universe.

Which of the above statements is/are correct?

Question

Consider the following statements about the Hubble Space Telescope (HST):

1. It operates mainly in the visible, ultraviolet, and near-infrared wavelengths.

2. It is placed in a geostationary orbit above the Earth.

3. It has contributed to measuring the rate of expansion of the Universe.

Which of the above statements is/are correct?

Accepted Answer

**Solution:**

1. The Hubble Space Telescope (HST) primarily observes in the **visible**, **ultraviolet (UV)**, and **near-infrared** wavelengths. This is correct.

2. The HST is placed in **low Earth orbit (LEO)** approximately 547 km above Earth, **not** in a geostationary orbit. Geostationary orbits are much higher (~35,786 km) and are used mainly for communication satellites.

3. The HST has significantly contributed to cosmology, including precise measurements of the **rate of expansion of the Universe** (Hubble constant) through observations of distant galaxies and supernovae.

**Answer:** Only statements 1 and 3 are correct.

Answer

Answer

Answer