Explain the waxing and waning phases in Venus

थोडक्यात उत्तर

As the Venus went around the epicycle, as shown in the diagram Venus would exhibit phases.
Also at times the planet would be nearer, making the apparent size grow bigger and at times far making the apparent size smaller.
If the Venus was going around the Sun, and its orbit is inside that of Earth, Venus would appear always near the Sun in the sky.
It can never be seen in the midnight sky. Two when it is near the Earth, it would be brighter and bigger compared to when it is on the other side of the Sun.
Thirdly only if the Venus is revolving around the Sun, it can exhibit gibbous phase, and the size of the gibbous phase smaller than the crescent phase.
If the Venus was revolving around the Earth, we can never see the gibbous phase of the Venus and it would be seen only if it is orbiting the Sun.

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पाठ 2: Universe and Space - Evaluation [पृष्ठ ४१]

पाठ 2 Universe and Space
Evaluation | Q VIII. 1. | पृष्ठ ४१

Milky way is a ________ galaxy.

Who is telling lies?

Light year is used to measures time.
End stage of a star depends on its initial mass.
A star ends its life as a neutron star when the pressure of its electrons balances its gravity.
Only light can emit from the black hole.
The sun will pass through the supergiant stage during its evolution.
The Sun will end its life as a white dwarf.

The group of galaxies of which our Milky Way is a part is called ______.

The galaxy in which our solar system is found is.

Older stars: elliptical galaxies:: younger stars: ______.

In which phase does the size of the planet Venus is small?

What type of galaxy is the milky way?

The solar system is located and is classified as a barred spiral galaxy.

Match the following:

Name the galaxy in which we live.