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Questions and Answers
What is the shape of the orbits of planets around the Sun, according to Kepler's first law?
What is the shape of the orbits of planets around the Sun, according to Kepler's first law?
- Parabolic
- Hyperbolic
- Circular
- Elliptical (correct)
What is the term for the point in a planet's orbit where it is closest to the Sun?
What is the term for the point in a planet's orbit where it is closest to the Sun?
- Syzygy
- Perihelion (correct)
- Aphelion
- Eclipse
According to Kepler's second law, what does a radius vector joining a planet to the Sun sweep out in equal lengths of time?
According to Kepler's second law, what does a radius vector joining a planet to the Sun sweep out in equal lengths of time?
- Equal accelerations
- Equal areas (correct)
- Equal distances
- Equal velocities
What is the relationship between the sidereal periods of the planets and their mean distances from the Sun, according to Kepler's third law?
What is the relationship between the sidereal periods of the planets and their mean distances from the Sun, according to Kepler's third law?
What is the term for the point in an orbiting body's orbit where it is furthest from the Sun?
What is the term for the point in an orbiting body's orbit where it is furthest from the Sun?
What is the shape of the curve formed by the sum of distances from every point on the curve to two other points, known as foci?
What is the shape of the curve formed by the sum of distances from every point on the curve to two other points, known as foci?
What is the term for the situation in which two or more waves overlap in space?
What is the term for the situation in which two or more waves overlap in space?
What was the discovery made by Davisson and Germer in 1927?
What was the discovery made by Davisson and Germer in 1927?
What is the phenomenon where light with a frequency above a threshold frequency is incident on a metal surface, resulting in the emission of electrons?
What is the phenomenon where light with a frequency above a threshold frequency is incident on a metal surface, resulting in the emission of electrons?
What is the name of the famous experiment that demonstrates the principle of wave-particle duality?
What is the name of the famous experiment that demonstrates the principle of wave-particle duality?
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