1.
What does Interplanetary Medium fill?
Correct Answer
D. Solar system
Explanation
The interplanetary medium refers to the space between the planets in our solar system. It is made up of various particles, such as gas, dust, and plasma, that are present throughout the entire solar system. This medium fills the vast expanse of space between the Sun and all the planets, including Earth, as well as other celestial bodies like asteroids and comets. Therefore, the correct answer is the solar system.
2.
Who was the first person to use the word 'Interplanetary'?
Correct Answer
A. Boyle
Explanation
The correct answer is Boyle. This is because Robert Boyle, an Irish scientist, was the first person to use the word "interplanetary" in his work "The Sceptical Chymist" published in 1661. In this book, Boyle discusses the concept of the interplanetary medium, referring to the space between planets.
3.
For Interplanetary Medium to react, the planet must depend on...
Correct Answer
C. Weather
Explanation
The correct answer is weather. The interplanetary medium refers to the space between planets, and for a planet to interact with this medium, it must depend on its weather conditions. Weather refers to the atmospheric conditions of a planet, including temperature, pressure, and precipitation. These weather conditions can affect the interaction between the planet and the interplanetary medium, such as the formation of atmospheric layers or the presence of atmospheric phenomena like storms or wind patterns.
4.
The word 'Interplanetary' was firstly printed in which year?
Correct Answer
B. 1691
5.
Interplanetary Medium includes all these except...
Correct Answer
D. Interplanetary water
Explanation
The interplanetary medium refers to the space between the planets in our solar system. It consists of various components such as interplanetary dust, cosmic rays, and hot plasma. Interplanetary water, however, is not a part of the interplanetary medium. While water can exist in various forms in space, such as ice on asteroids or comets, it is not considered a component of the interplanetary medium itself.
6.
What is the density of the interplanetary medium?
Correct Answer
B. 5 particles per cubic centimeter
Explanation
The density of the interplanetary medium refers to the number of particles present in a given volume. In this case, the correct answer is 5 particles per cubic centimeter, indicating that there are five particles present in every cubic centimeter of the interplanetary medium.
7.
The Interplanetary Medium decreases when there is a/an...
Correct Answer
A. Increase in distance of the sun
Explanation
As the distance between the sun and the interplanetary medium increases, the density of the medium decreases. The interplanetary medium refers to the material (such as gas, dust, and charged particles) that exists in the space between planets and other celestial bodies. When the distance of the sun increases, the material in the interplanetary medium becomes more spread out and less dense, resulting in a decrease in the interplanetary medium.
8.
Who stated that interplanetary space is a vacuum?
Correct Answer
A. Charles
Explanation
Charles is the correct answer because he was the first person to propose the idea that interplanetary space is a vacuum. In the 17th century, Charles Boyle, an English physicist, conducted experiments that led him to believe that there is no air or matter in the space between planets. This idea was later confirmed by other scientists and is now widely accepted in the field of astrophysics.
9.
Choose the one that is not among the characteristics of Interplanetary Medium.
Correct Answer
D. High Pressure
Explanation
The correct answer is "High Pressure." The interplanetary medium refers to the space between planets, and it is characterized by various elements such as interplanetary dust and cosmic rays. However, high pressure is not a characteristic of the interplanetary medium. In fact, the interplanetary medium is mostly a vacuum with very low pressure.
10.
In the listed characteristics, which of them is the highest energy particle?
Correct Answer
B. Cosmic Ray
Explanation
Cosmic rays are the highest energy particles among the listed characteristics. They are energetic particles that originate from outer space and can have extremely high velocities, often close to the speed of light. These particles can have energies ranging from millions to billions of electron volts, far exceeding the energy levels associated with high temperature, interplanetary dust, or variation in density. Cosmic rays are typically produced by astrophysical processes such as supernovae explosions or active galactic nuclei, and they can have significant impacts on Earth's atmosphere and space weather.