
Astronauts communicate with one another on the moon with the help of.
A. Radio waves
B. Sound waves
C. Ultrasound waves
D. Infrasound waves
Answer
505.2k+ views
1 likes
Hint: Sound waves travel in air. But there is no air in space for sound to travel. Thus, for communication purposes the astronauts need some devices. These devices convert sound from other forms so that the astronauts can communicate. These devices are based on the waves that can travel in space.
Complete answer:
Sound does not travel in vacuum or space. While, electromagnetic waves like radio waves, light waves, etc. can travel in space. Thus, to communicate with each other during skywalking, astronauts use one of the electromagnetic waves that is radio waves.
In the space suit of astronauts, devices are fixed for communication. The devices include radio microphone and speakers. These microphones convert the sound of the person who is speaking from sound to radio waves. Then the speaker converts this radio wave to sound wave so that the other astronaut can hear. This is how astronauts communicate with each other on the moon or at a point in space. Astronauts use the same devices to communicate with people on the ground. These sounds get converted to radio waves because of the air in the space suit.
Thus, astronauts communicate with one another on the moon with the help of radio waves.
So, the correct answer is “Option A”.
Note:
Just after the Big bang, the universe was dense enough for the sound to travel in space. As the universe is expanding, volume is increasing. Thus, the density of the universe is decreasing. Due to which, travel of sound waves in the universe is not possible.
Complete answer:
Sound does not travel in vacuum or space. While, electromagnetic waves like radio waves, light waves, etc. can travel in space. Thus, to communicate with each other during skywalking, astronauts use one of the electromagnetic waves that is radio waves.
In the space suit of astronauts, devices are fixed for communication. The devices include radio microphone and speakers. These microphones convert the sound of the person who is speaking from sound to radio waves. Then the speaker converts this radio wave to sound wave so that the other astronaut can hear. This is how astronauts communicate with each other on the moon or at a point in space. Astronauts use the same devices to communicate with people on the ground. These sounds get converted to radio waves because of the air in the space suit.
Thus, astronauts communicate with one another on the moon with the help of radio waves.
So, the correct answer is “Option A”.
Note:
Just after the Big bang, the universe was dense enough for the sound to travel in space. As the universe is expanding, volume is increasing. Thus, the density of the universe is decreasing. Due to which, travel of sound waves in the universe is not possible.
Recently Updated Pages
Master Class 10 Computer Science: Engaging Questions & Answers for Success

Master Class 10 Maths: Engaging Questions & Answers for Success

Master Class 10 English: Engaging Questions & Answers for Success

Master Class 10 General Knowledge: Engaging Questions & Answers for Success

Master Class 10 Science: Engaging Questions & Answers for Success

Master Class 10 Social Science: Engaging Questions & Answers for Success

Trending doubts
What is the past participle of wear Is it worn or class 10 english CBSE

What is Whales collective noun class 10 english CBSE

What is potential and actual resources

For what value of k is 3 a zero of the polynomial class 10 maths CBSE

What is the full form of POSCO class 10 social science CBSE

Which three causes led to the subsistence crisis in class 10 social science CBSE
