Multiple choice

Directions: Read the following information and answer the question that follows.

According to a study conducted at Birla Planetarium at Kolkata, an asteroid was discovered at the other end of Milky Way Galaxy, which defined different electromagnetic spectrum denoting different compositions at different observations and has never been observed to exhibit the same spectrum twice.

Which of the following is suggested by the above passage?

  1. The new asteroid can be eventually expected to have definite composition.

  2. The new asteroid is different from all asteroids previously known.

  3. The Birla Planetarium is not a reliable source of information about the new asteroids.

  4. The new asteroid can be identified on the basis of some characteristics other than its spectrum.

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

If the newly discovered asteroid has been identified in several spectra, it can be inferred that (4) there must be some other way besides spectrum to identify this asteroid. If this were not the case, the scientists wouldn’t know that it was the same asteroid they were observing when it exhibited different spectra.

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