Kepler's laws follow which law discovered by Sir Isaac Newton?
2 answers:
Answer:
B. Universal Gravitational Law
Explanation:
As we know that Kepler gives three laws regarding the planetary motion of all planets around the sun
All his laws are derived from the basic Theory of law of attraction by gravitation.
Universal law of attraction given by Sir Issac Newton says that if two masses are placed at some distance from each other then the net force between two masses is given as
here we know that
= masses of two objects
= distance between two objects
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Answer:
True
Explanation:
When a ray travelling parallel to the principle axis of a concave mirror then the light ray reflect out through the mirrors and passing through the focus.
When a light ray travelling through focus of a concave mirror then after reflection the light ray reflect out through the mirror and go parallel to principle axis.
Therefore, rays travelling parallel to the principle axis of a concave mirror will reflect out through the mirrors focus.
It is true.
