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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The star Rigel, otherwise known as Rājanya, has a mass of 42×1030 kg. Express the mass in the unit of solar mass (MSun).21 |
Answer» The star Rigel, otherwise known as Rājanya, has a mass of 42×1030 kg. Express the mass in the unit of solar mass (MSun).
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| 52. |
How many kilometers are there in a light year? |
| Answer» How many kilometers are there in a light year? | |
| 53. |
How can the scientists tell that the universe is still expanding? |
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Answer» How can the scientists tell that the universe is still expanding? |
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| 54. |
How many miles are there in a light year? |
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Answer» How many miles are there in a light year? |
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| 55. |
Why does Gujarat witness a sunrise 2 hours after Arunachal Pradesh? |
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Answer» Why does Gujarat witness a sunrise 2 hours after Arunachal Pradesh? |
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| 56. |
Can a star orbit a star Is our Sun orbiting another star |
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Answer» Can a star orbit a star Is our Sun orbiting another star |
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| 57. |
The initial mass of some stars is given below as options. Which of the following stars would become a red giant? |
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Answer» The initial mass of some stars is given below as options. Which of the following stars would become a red giant? |
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| 58. |
Assertion : When we see the moon throughsuspended water drop, such as in fog we intercept circular pattern surrounding thefog, Reason : The corona around the moon is a composite of the diffraction patterns of many air born water drops |
| Answer» Assertion : When we see the moon throughsuspended water drop, such as in fog we intercept circular pattern surrounding thefog, Reason : The corona around the moon is a composite of the diffraction patterns of many air born water drops | |
| 59. |
The star Rigel, otherwise known as Rājanya, has a mass of 42×1030 kg. Express the mass in the unit of solar mass (MSun). |
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Answer» The star Rigel, otherwise known as Rājanya, has a mass of 42×1030 kg. Express the mass in the unit of solar mass (MSun). |
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| 60. |
What is a dark matter and how can it been seen by us and what is a nebula blast? |
| Answer» What is a dark matter and how can it been seen by us and what is a nebula blast? | |
| 61. |
42.Particle of masses 2M ,m andMare respectively at points A ,B and C with AB= 1/2BC. m is much much smaller than M and at time t=0 they are all at rest. at subsequent times before any collison takes place which of the following will be true |
| Answer» 42.Particle of masses 2M ,m andMare respectively at points A ,B and C with AB= 1/2BC. m is much much smaller than M and at time t=0 they are all at rest. at subsequent times before any collison takes place which of the following will be true | |
| 62. |
Find the value of g if the mass of the planet is 5.683×10^26 kg and the radius of the planet is 58232 |
| Answer» Find the value of g if the mass of the planet is 5.683×10^26 kg and the radius of the planet is 58232 | |
| 63. |
The root mean square velocity of the molecules in a sample of helium is 57 th that of the molecules in a sample of hydrogen if the temperature of the hydrogen sample is 0c that of helium samples is about 1. Oc 2. 0k 3. 273c 4. 100c |
| Answer» The root mean square velocity of the molecules in a sample of helium is 57 th that of the molecules in a sample of hydrogen if the temperature of the hydrogen sample is 0c that of helium samples is about 1. Oc 2. 0k 3. 273c 4. 100c | |
| 64. |
The star Aldebaran, otherwise known as Rōhini, has a mass of 1.16 MSun, where MSun is the mass of the Sun. Express Rōhini’s mass in kg. |
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Answer» The star Aldebaran, otherwise known as Rōhini, has a mass of 1.16 MSun, where MSun is the mass of the Sun. Express Rōhini’s mass in kg. |
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| 65. |
Identify the neutron star from the following: |
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Answer» Identify the neutron star from the following: |
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| 66. |
Why are we not able to see the stars during the day time? |
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Answer» Why are we not able to see the stars during the day time? |
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| 67. |
The star Aldebaran, otherwise known as Rōhini, has a mass of 1.16 MSun, where MSun is the mass of the Sun. Express Rōhini’s approximate mass in 1030 kg.2.3 |
Answer» The star Aldebaran, otherwise known as Rōhini, has a mass of 1.16 MSun, where MSun is the mass of the Sun. Express Rōhini’s approximate mass in 1030 kg.
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| 68. |
What is a black hole and how it is formed and can we live on mars |
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Answer» What is a black hole and how it is formed and can we live on mars |
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| 69. |
How is this possible that only stars turn into a black hole? |
| Answer» How is this possible that only stars turn into a black hole? | |
| 70. |
What is the factor due to which stars appear as points while planets appear as discs? |
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Answer» What is the factor due to which stars appear as points while planets appear as discs? |
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| 71. |
What is a Black Hole? |
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Answer» What is a Black Hole? |
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| 72. |
Define light year. Show the calculation for 1 Light year. [3 MARKS] |
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Answer» Define light year. Show the calculation for 1 Light year. [3 MARKS] |
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| 73. |
Light cover how many distance in a lightyear? |
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Answer» Light cover how many distance in a lightyear? |
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| 74. |
Sun uses hydrogen as raw material to produce nuclear energy. Which type of nuclear reaction takes place inside Sun's core? |
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Answer» Sun uses hydrogen as raw material to produce nuclear energy. Which type of nuclear reaction takes place inside Sun's core? |
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| 75. |
Which are the two other elements along with Helium that were produced during big bang? |
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Answer» Which are the two other elements along with Helium that were produced during big bang? |
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| 76. |
If the distance between two stars in a galaxy is 16.3 light years, what is its value in the unit of parsec?5 |
Answer» If the distance between two stars in a galaxy is 16.3 light years, what is its value in the unit of parsec?
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| 77. |
The kinetic energies of a planet in an elliptical orbit about the sun at positions A, B and C are KA, KB and KC respectively. AC is the major axis and SB is perpendicular to AC at the position of the sun S as shown in the figure with SA<SB. Then, |
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Answer» The kinetic energies of a planet in an elliptical orbit about the sun at positions A, B and C are KA, KB and KC respectively. AC is the major axis and SB is perpendicular to AC at the position of the sun S as shown in the figure with SA<SB. Then, |
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| 78. |
State three Kepler's law of planetary motion. [3 MARKS] |
| Answer» State three Kepler's law of planetary motion. [3 MARKS] | |
| 79. |
How much mass of the Solar System is the Sun a part of? |
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Answer» How much mass of the Solar System is the Sun a part of? |
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| 80. |
What is a Supernova? |
| Answer» What is a Supernova? | |
| 81. |
What is the difference between a warm hole and a white hole? |
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Answer» What is the difference between a warm hole and a white hole? |
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| 82. |
what is speed of light |
| Answer» what is speed of light | |
| 83. |
The extent of Milky Way is about |
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Answer» The extent of Milky Way is about |
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| 84. |
In nuclear fission process, what happens to the nucleus of an atom? |
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Answer» In nuclear fission process, what happens to the nucleus of an atom? |
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| 85. |
The surface temperature of the Sun is as high as. |
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Answer» The surface temperature of the Sun is as high as |
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| 86. |
What is calculation for light year? |
| Answer» What is calculation for light year? | |
| 87. |
How did the universe come to exist? |
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Answer» How did the universe come to exist? |
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| 88. |
What are white dwarf ? And the difference between white hole and black hole. |
| Answer» What are white dwarf ? And the difference between white hole and black hole. | |
| 89. |
does atom destroys when there is nuclear explosion? |
| Answer» does atom destroys when there is nuclear explosion? | |
| 90. |
Which of these is an example of a celestial body? |
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Answer» Which of these is an example of a celestial body? |
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| 91. |
We are not able to see the stars during the daytime. Why? |
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Answer» We are not able to see the stars during the daytime. Why? |
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| 92. |
Some people believe that blackhole has an end which means that if we are pulled by a black hole, we can come out of the other end. But as far as scientists researched they tell that a person ever pulled inside the black hole will never be able to come back. Then are the people wrong? And if not, the inspire of black hole having an end why can't a person trapped in it never come out?! |
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Answer» Some people believe that blackhole has an end which means that if we are pulled by a black hole, we can come out of the other end. But as far as scientists researched they tell that a person ever pulled inside the black hole will never be able to come back. Then are the people wrong? And if not, the inspire of black hole having an end why can't a person trapped in it never come out?! |
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| 93. |
Which of the following is/are noble gas? |
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Answer» Which of the following is/are noble gas? |
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| 94. |
Question 2 Which of the following figures depicts the position of pole star correctly? (a) (b) (c) (d) |
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Answer» Question 2 |
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| 95. |
Explain that light is an important factor for plants and animals |
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Answer» Explain that light is an important factor for plants and animals |
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| 96. |
A___________ is an interstellar cloud of dust and other ionized gases. |
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Answer» A___________ is an interstellar cloud of dust and other ionized gases. |
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| 97. |
Scientists use ___ to look at stars, planets and study the universe. |
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Answer» Scientists use |
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| 98. |
Which of these possibly could be the density of Saturn if density of water is given as 1? |
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Answer» Which of these possibly could be the density of Saturn if density of water is given as 1? |
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| 99. |
A lightyear is a unit of distance. It is the distance travelled by light in one year. If the speed of light is equal to 3 x 108m/s, how many kilometres will make up 1 light year? |
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Answer» A lightyear is a unit of distance. It is the distance travelled by light in one year. If the speed of light is equal to 3 x 108m/s, how many kilometres will make up 1 light year? |
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| 100. |
Which among the following sentences has a transitive verb? |
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Answer» Which among the following sentences has a transitive verb? |
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