Monohar Pandey Solutions for Exercise 1: Exercise 1

Regarding the alignment of our solar system choose the correct statement.
1. Axis of Earth is inclined to plane of revolution by $66\frac{1}{2}\%$.
2. Plane of every planets are concentric. 3. Earth is the only planet in our solar system with circular orbit.

Regarding shape of Earth, choose the correct statement.
1. On 22nd December, Sau Palo has no day at all.
2. Northern hemisphere above 23.SO N, has longer duration of day on 22nd December.
3. At archie circle, Sun never rises, through out the year.

21st March or 21st September, Sun aligns with Earth in some peculiar way.
Choose correct statement.
1. One of them forms winter solstice, depending upon hemisphere.
2. Equinoxes are take place only at tropic of cancer or capricorn depending upon Earth's inclination.
3. Equinoxes imply equal days and nights.

If you stay in Bhopal and its 1st day of year 2017. Then arrange the sequences of Earth-Sun alignment.

Regarding seasonal changes, attempt the correct reason behind such changes.
1. Revolution of Earth is the prime reason for season.
2. On 23rd may. sun rays are concentrated on smaller area in Northern Hemisphere.
3. In winter oblique rays fall in Northern hemisphere for longer period of time.

Latitudes and longitudes are imaginary line drawn for precise location. Choose correct statement regarding this.
1. Latitude is the linear distance on Earth surface.
2. Linear distance of degree of latitude at pole is little longer than that at equator.
3. Distance between two latitude on an average is 69 miles.

Regarding longitude, choose the correct statements.
1. It is an angular distance measured in degrees along the equator, East or West of prime meridian.
2. Prime meridian, just like equator has a distinct feature, and hence was chosen as reference of numbering longitude.
3. Greenwich lies at 180°, exactly opposite to prime meridian.
4. difference between two longitude one at Delhi and another at say place X on same latitude, is 69.1 km.

A sailor started his journey from Indonesia and crossed Fiji to reach Peru. Choose the correct rectification he has to make in his day/time setting. He started on 22nd February.
1. date on which he reaches Fiji is 22nd if it takes less than 24 hrs to reach there.
2. Date on which he reaches Peru is 22nd if it takes 37 hrs.
3. Date on which he reaches Fiji is 23rd if he takes 32 hrs.