1. What is the difference between asteroids and comets?
1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material.
2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury.
3. Comets show a perceptible glowing tail, while asteroids do not.
Which of the statements given above is/are correct?
(a) 1 and 2
(b) 1 and 3
(c) Only 3
(d) All of these
Answer.
2. Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when
1. The orbit is geosynchronous
2. The orbit is circular
3. The orbit lies in the plane of the Earth’s equator
4. The orbit is at an altitude of 22236 km
Select the correct answer using the codes given below
(a) 1, 2 and 3
(b) 1, 3 and 4
(c) 2 and 4
(d) All of these
Answer.
3. Which of the following statements is the reason for ‘Seasons’ on the surface of the Earth?
(a)Rotation of the Earth
(b) Revolution of the Earth around the sun
(c) The 23.5 degree inclination of the Earth’s rotation axis with respect to the plane of the ecliptic
(d) Revolution of Earth in elliptical orbit around the Sun.
Answer.
4. A person stood alone in a desert on a dark night and wanted to reach his village, which was situated 5 km East of the point where he was standing. He had no instruments to find the direction, but he located the polestar. The most convenient way now to reach his village is to walk in the
(a)direction facing the polestar
(b) direction opposite to the polestar
(c) direction keeping the polestar to his left
(d) direction keeping the polestar to his right
Answer.
5. Which among the following areas is conducive for well irrigation?
(a)Rocky and uneven surface of peninsular india
(b) Dry tracts of Rajasthan and Gujarat
(c) Brackish groundwater region of Uttar Pradesh
(d) Deltaic regions of Mahanadi, Godavari and Krishna
Answer.
6. Consider following statements
Statement I :- Insolation is greatest, when the Sun is directly overhead and the Sun’s rays are vertical.
Statement II :- When the Sun is lower in the sky, the same amount of solar energy spreads over a greater area of ground surface, so insolation is lower.
(a) Both the statements are true and Statement II is the correct explanation of Statement I
(b) Both the statements are true, but Statement II is not the correct explanation of Statement I
(c) Statement is true, but Statement II is false
(d) Statement I is false, but Statement II is true
Answer.
7. Consider following statements
Statement I :- There is a large-scale fluctuation of oil flow from oil wells prior to earthquakes.
Statement II :- Tectonic stress accumulates to a certain level, the pore pressure within a deep oil bearing stratum reaches its breaking strength causing oil to sprout along the oil wells.
(a) Both the statements are true and Statement II is the correct explanation of Statement I
(b) Both the statements are true, but Statement II is not the correct explanation of Statement I
(c) Statement is true, but Statement II is false
(d) Statement I is false, but Statement II is true
Answer.
8. Sun emits energy in the form of electromagnetic radiation. The following help in the generation of solar energy, Arrange them in the right sequence beginning from the starting of the cycle.
1. Hydrogen is converted to helium at very high temperatures and pressures.
2. The energy finds its way to Sun’s surface.
3. A vast quantity of energy is generated by nuclear fusion.
Select the correct answer using the codes given below
(a) 1, 2, 3
(b) 2, 3, 1
(c) 3, 2, 1
(d) 1, 3, 2
Answer.
9. The greatest seasonal contrast of insolation on the Earth is, in which of the following latitudinal zones?
(a)Equatorial
(b) Tropical
(c) Temperate
(d) Polar
Answer.
10. Which of the following is/are cited by the scientists as evidence/evidences for the continued expansion of universe?
1. Detection microwaves in space.
2. Observation of red shift phenomenon in space.
3. Movement of asteroids in space.
4. Occurrence of supernova explosions in space.
(a) 1 and 2
(b) Only 2
(c) 1, 3 and 4
(d) None of these
Answer.
1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material.
2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury.
3. Comets show a perceptible glowing tail, while asteroids do not.
Which of the statements given above is/are correct?
(a) 1 and 2
(b) 1 and 3(c) Only 3
(d) All of these
Answer.
2. Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when
1. The orbit is geosynchronous
2. The orbit is circular
3. The orbit lies in the plane of the Earth’s equator
4. The orbit is at an altitude of 22236 km
Select the correct answer using the codes given below
(a) 1, 2 and 3
(b) 1, 3 and 4
(c) 2 and 4
(d) All of these
Answer.
3. Which of the following statements is the reason for ‘Seasons’ on the surface of the Earth?
(a)Rotation of the Earth
(b) Revolution of the Earth around the sun
(c) The 23.5 degree inclination of the Earth’s rotation axis with respect to the plane of the ecliptic
(d) Revolution of Earth in elliptical orbit around the Sun.
Answer.
4. A person stood alone in a desert on a dark night and wanted to reach his village, which was situated 5 km East of the point where he was standing. He had no instruments to find the direction, but he located the polestar. The most convenient way now to reach his village is to walk in the
(a)direction facing the polestar
(b) direction opposite to the polestar
(c) direction keeping the polestar to his left
(d) direction keeping the polestar to his right
Answer.
5. Which among the following areas is conducive for well irrigation?
(a)Rocky and uneven surface of peninsular india
(b) Dry tracts of Rajasthan and Gujarat
(c) Brackish groundwater region of Uttar Pradesh
(d) Deltaic regions of Mahanadi, Godavari and Krishna
Answer.
6. Consider following statements
Statement I :- Insolation is greatest, when the Sun is directly overhead and the Sun’s rays are vertical.
Statement II :- When the Sun is lower in the sky, the same amount of solar energy spreads over a greater area of ground surface, so insolation is lower.
(a) Both the statements are true and Statement II is the correct explanation of Statement I
(b) Both the statements are true, but Statement II is not the correct explanation of Statement I
(c) Statement is true, but Statement II is false
(d) Statement I is false, but Statement II is true
7. Consider following statements
Statement I :- There is a large-scale fluctuation of oil flow from oil wells prior to earthquakes.
Statement II :- Tectonic stress accumulates to a certain level, the pore pressure within a deep oil bearing stratum reaches its breaking strength causing oil to sprout along the oil wells.
(a) Both the statements are true and Statement II is the correct explanation of Statement I
(b) Both the statements are true, but Statement II is not the correct explanation of Statement I
(c) Statement is true, but Statement II is false
(d) Statement I is false, but Statement II is true
8. Sun emits energy in the form of electromagnetic radiation. The following help in the generation of solar energy, Arrange them in the right sequence beginning from the starting of the cycle.
1. Hydrogen is converted to helium at very high temperatures and pressures.
2. The energy finds its way to Sun’s surface.
3. A vast quantity of energy is generated by nuclear fusion.
Select the correct answer using the codes given below
(a) 1, 2, 3
(b) 2, 3, 1
(c) 3, 2, 1
(d) 1, 3, 2
Answer.
9. The greatest seasonal contrast of insolation on the Earth is, in which of the following latitudinal zones?
(a)Equatorial
(b) Tropical
(c) Temperate
(d) Polar
Answer.
10. Which of the following is/are cited by the scientists as evidence/evidences for the continued expansion of universe?
1. Detection microwaves in space.
2. Observation of red shift phenomenon in space.
3. Movement of asteroids in space.
4. Occurrence of supernova explosions in space.
(a) 1 and 2
(b) Only 2
(c) 1, 3 and 4
(d) None of these
Answer.