Mock Test

Space Part-1

by Anish
Updated On:

Total Questions: 50

31. Which of the following is/are cited by the scientists as evidence/evidences for the continued expansion of the universe? [L.A.S. (Pre) 2012]

  1. Detection of microwaves in space.
  2. Observation of redshift phenomenon in space.
  3. Movement of asteroids in space.
  4. Occurrence of supernova explosions in space.

Select the correct answer using the codes given below:

Correct Answer: (a) 1 and 2
Solution:Detection of microwaves in space and observation of redshift phenomenon in space are cited by scientists as evidence for the continued expansion of the universe.

32. The concept of expanding universe is based on: [U.P.P.C.S. (Mains) 2015]

Correct Answer: (a) Doppler effect
Solution:The concept of expanding universe is based on Doppler effect. It was named after Christian Doppler, who first came up with the idea in 1842. Edwin Hubble used the Doppler Effect to determine that the universe is expanding.

Hubble found that the light from distant galaxies was shifted towards lower frequencies, to the red end of the spectrum. This is known as a red Doppler shift or a red-shift.

33. Consider the following phenomena: [L.A.S. (Pre) 2018]

  1. Light is affected by gravity.
  2. The Universe is constantly expanding.
  3. Matter warps its surrounding space-time.

Which of the above is/are the prediction/predictions of Albert Einstein's General Theory of Relativity, often discussed in media?

Correct Answer: (d) 1, 2, and 3
Solution:When light travels near a huge celestial body or black hole, it bends towards the celestial body. As per the prediction of Albert Einstein, the astronomers have found that the universe is expanding continuously and a heavenly body with huge mass tends to bend (warp) the space-time. This is known as warping of the space-time. This is why light seems to bend when it passes near a star or black hole.

34. Who was the father of Indian Space Programme? [M.P.P.C.S. (Pre) 2019]

Correct Answer: (a) Dr. Vikram Ambalal Sarabhai
Solution:

Dr. Vikram Ambalal Sarabhai was an Indian physicist and astronomer who initiated space research in India. He is considered as the Father of the Indian Space Programme.

35. Who amongst the following is considered as the father of India's space programme? [Jharkhand P.C.S. (Pre) 2021]

Correct Answer: (c) Vikram Sarabhai
Solution:

Dr. Vikram Ambalal Sarabhai was an Indian physicist and astronomer who initiated space research in India. He is considered as the Father of the Indian Space Programme.

36. The First Satellite of India sent to space was: [U.P. Lower Sub. (Pre) 2009, M.P.P.C.S. (Pre) 1992, U.P.P.C.S. (Mains) 2006]

Correct Answer: (c) Aryabhatta
Solution:Aryabhatta was the first satellite launched by India. It was named after the great Indian astronomer of the same name. Aryabhatta weighed 360 kg and was launched by the Soviet Union on April 19, 1975 from Kapustin Yar using a Cosmos-3M launch vehicle.

37. India entered space age by launching: [R.A.S/R.T.S. (Pre) 2013]

Correct Answer: (b) Aryabhatta
Solution:Aryabhatta was the first satellite launched by India. It was named after the great Indian astronomer of the same name. Aryabhatta weighed 360 kg and was launched by the Soviet Union on April 19, 1975 from Kapustin Yar using a Cosmos-3M launch vehicle.

38. Aryabhatta was launched on: [M.P.P.C.S. (Pre) 2003]

Correct Answer: (a) April 19, 1975
Solution:Aryabhatta was the first satellite launched by India. It was named after the great Indian astronomer of the same name. Aryabhatta weighed 360 kg and was launched by the Soviet Union on April 19, 1975 from Kapustin Yar using a Cosmos-3M launch vehicle.

39. The name of the scientist who designed India's first space satellite 'Aryabhatta' and died recently is: [U.P.P.S.C. (GIC) 2017]

Correct Answer: (a) Prof. U.R. Rao
Solution:

Prof. U.R. Rao was the scientist who designed India's first space satellite 'Aryabhatta'. Rao undertook the responsibility for the establishment of satellite technology in India in 1972.

Under his guidance, beginning with the first Indian satellite 'Aryabhatta' in 1975, over 18 satellites were designed, fabricated, and launched. Rao also served as the chairman of ISRO for 10 years from 1984-1994. He passed away at the age of 85 on 24 July 2017.

40. Which was the first animal to travel to space? [U.P.P.S.C. (GIC) 2010]

Correct Answer: (b) A dog
Solution:Laika was a Soviet space dog who became the first animal to orbit the Earth in space. Laika, a stray dog from the streets of Moscow, was selected to be the occupant of the Soviet spacecraft Sputnik 2 that was launched into outer space on November 3, 1957.

Anish

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