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प्रश्न
Explain the waxing and waning phases in Venus
थोडक्यात उत्तर
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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]
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संबंधित प्रश्न
Our galaxy is called ______.
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.
Which celestial bodies does a galaxy include?
The galaxy containing young and hot stars is______.
Name the four different types of galaxies.
What type of galaxy is the milky way?
The nearest galaxy to our Milky way is ______.
Unlike galaxies, constellations are more optical appearances and are not real objects.
What is the Indian name of Ursa Minor?
How are galaxies classified?
