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The Hubble Space Telescope will search f...

The Hubble Space Telescope will search for planets around the stars, a key to the __________ extraterrestrial life , and examine interstellar dust and gases out of which stars are born.

A

perception

B

discovery

C

enquiry

D

quest

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The correct Answer is:
D
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The path along which a planet revolves around its star is called an ________.

Sumati wanted to see the stars of the night sky. She knows that she needs a telescope to see those distant stars. She finds out that the telescopes, which are made of lenses, are called refracting telescopes and the ones which are made of mirrors are called reflecting telescopes. So she decided to make a refracting telescope. She bought two lenses, L_(1) and L_(2) . out of which L_(1) was bigger and L_(2) was smaller. The larger lens gathers and bends the light, while the smaller lens magnifies the image. Big, thick lenses are more powerful. So to see far away, she needed a big powerful lens. Unfortunately, she realized that a big lens is very heavy. Heavy lenses are hard to make and difficult to hold in the right place. Also since the light is passing through the lens, the surface of the lens has to be extremely smooth. Any flaws in the lens will change the image. It would be like looking through a dirty window. Sumati bought not-so-thick lenses for the telescope and polished them. What advantages, if any, would she have with her choice of lenses?

Sumati wanted to see the stars of the night sky. She knows that she needs a telescope to see those distant stars. She finds out that the telescopes, which are made of lenses, are called refracting telescopes and the ones which are made of mirrors are called reflecting telescopes. So she decided to make a refracting telescope. She bought two lenses, L_(1) and L_(2) . out of which L_(1) was bigger and L_(2) was smaller. The larger lens gathers and bends the light, while the smaller lens magnifies the image. Big, thick lenses are more powerful. So to see far away, she needed a big powerful lens.Unfortunately, she realized that a big lens is very heavy. Heavy lenses are hard to make and difficult to hold in the right place. Also since the light is passing through the lens, the surface of the lens has to be extremely smooth. Any flaws in the lens will change the image. It would belike looking through a dirty window. Based on the diagram shown, what kind of lenses would Sumati need to makethe telescope?

Sumati wanted to see the stars of the night sky. She knows that she needs a telescope to see those distant stars. She finds out that the telescopes, which are made of lenses, are called refracting telescopes and the ones which are made of mirrors are called reflecting telescopes. So she decided to make a refracting telescope. She bought two lenses, L_(1) and L_(2) . out of which L_(1) was bigger and L_(2) was smaller. The larger lens gathers and bends the light, while the smaller lens magnifies the image. Big, thick lenses are more powerful. So to see far away, she needed a big powerful lens.Unfortunately, she realized that a big lens is very heavy. Heavy lenses are hard to make and difficult to hold in the right place. Also since the light is passing through the lens, the surface of the lens has to be extremely smooth. Any flaws in the lens will change the image. It would be like looking through a dirty window. If the powers of the lenses L_(1) and L_(2) are in the ratio of 4:1 , what would be the ratio of the focal length of L_(1) and L_(2)

Sumati wanted to see the stars of the night sky. She knows that she needs a telescope to see those distant stars. She finds out that the telescopes, which are made of lenses, are called refracting telescopes and the ones which are made of mirrors are called reflecting telescopes. So she decided to make a refracting telescope. She bought two lenses, L_(1) and L_(2) . out of which L_(1) was bigger and L_(2) was smaller. The larger lens gathers and bends the light, while the smaller lens magnifies the image. Big, thick lenses are more powerful. So to see far away, she needed a big powerful lens. Unfortunately, she realized that a big lens is very heavy. Heavy lenses are hard to make and difficult to hold in the right place. Also since the light is passing through the lens, the surface of the lens has to be extremely smooth. Any flaws in the lens will change the image. It would be like looking through a dirty window. What is the formula for magnification obtained with a lens?

Gallee desired to use his telescope to make more discoveries in the heavens, but his instrument was too small. He made another sad Inteisscope which maguañed sight times, and then another which magnified thirty times, and pointed it at the moon. Hur heart leaped with joy, for he saw what no human eye had ever before seen-range of mountains, deep hollows, and broad plains He turned his telescope on the planets, and found they appeared with disks like the moon at a quarter fall. He turned on the Milky Way, and beheld innumerable tiny stars Galileo made several telescopes because

Galileo desired to use his telescope to make more discoveries in the heavens, but his instrument was too small. He made another and larger telescope which magnified eight times, and then another which magnified thirty times, and pointed it at the moon. His heart leaped with joy, for he saw what no human eye had ever before seen - ranges of mountains, deep hollows, and broad plains! He turned his telescope on the planets, and found they appeared with disks like the moon at a quarter full. He turned it on the Milky Way, and beheld innumerable tiny stars. When Galileo saw what no human eye had ever before seen he

IBPS & SBI PREVIOUS YEAR PAPER-FILL IN THE BLANKS -MCQs
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