Mastering the Language: Reading Comprehension Practice for Competitive Exams
Reading Comprehension - 1 (Practice Test)
for all competitive examinations
Read the following passage carefully and answer the questions that follow:
The Hidden
Language of Light
For centuries,
astronomers gazed at the night sky, marvelling at the twinkling stars and the
hazy glow of distant galaxies. However, these celestial objects whispered
secrets in a language invisible to the naked eye – the language of light. Light
isn't just what allows us to see; it carries a wealth of information. By analysing
the spectrum, the breakdown of light into its component colours, scientists can
unlock the composition, temperature, and even motion of celestial bodies.
One key
discovery was the existence of elements beyond Earth. When a hot star burns,
its atoms emit specific wavelengths of light, like a unique fingerprint. By
comparing these fingerprints to the spectra of elements found on Earth,
scientists can identify the presence of elements like hydrogen, helium, and
even iron in distant stars. Additionally, the Doppler effect, where the
observed frequency of light shifts depending on the motion of the source,
allows us to measure the speed at which stars and galaxies are moving away from
or towards us. This information helps us understand the vastness and evolution
of the universe.
The language of
light has revolutionized astronomy, transforming our understanding of the
cosmos from a place of wonder to a vast laboratory filled with secrets waiting
to be unravelled.
MCQs (Read the questions before doing the quiz online below in the form . You will get the results immediately after submitting the form. Click on the SCORE button after submission)
- What
does the analysing the spectrum of light from stars reveal?
a) Their distance from Earth
b) Their composition and
temperature
c) Their size and shape
d) The weather on their surface
- How
does the Doppler effect help astronomers?
a) It allows them to see stars
during the day.
b) It helps identify new elements.
c) It measures the speed of a
star's movement.
d) It determines the brightness of
a star.
- What
is the main idea of the passage?
a) Light is beautiful and allows us
to see the stars.
b) Stars are distant objects with
unique properties.
c) By studying light, we can learn
about stars and the universe.
d) New telescopes are needed to
understand the language of light.
- The
passage mentions that stars have a unique "fingerprint." What does
this refer to?
a) Their position in the night sky
b) The specific pattern of light
they emit
c) The number of planets they have
d) The constellations they belong
to
- According
to the passage, what was the traditional view of the night sky before
scientists understood the language of light?
a) A chaotic and random collection
of objects.
b) A place of mystery and beauty.
c) A perfectly predictable system.
d) A laboratory filled with
secrets.
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