- 1. Radiophysics is the branch of physics that deals with the study and application of electromagnetic radiation in the radio frequency range. It encompasses the study of radio waves, electromagnetic radiation, propagation, and communication systems. Radiophysics plays a crucial role in the development of various technologies such as wireless communication, radar systems, and broadcasting. Researchers in radiophysics explore the behavior and properties of radio waves to better understand how they interact with materials and environments, leading to advancements in telecommunications, space exploration, and many other fields.
What is the primary source of energy for astronomical objects?
A) Laser beams
B) Nuclear fusion
C) Gravitational waves
D) Chemical reactions
- 2. Which of the following particles is electrically neutral?
A) Neutron
B) Electron
C) Proton
D) Photon
- 3. What is the speed of light in a vacuum?
A) 299,792,458 meters per second
B) 100,000,000 meters per second
C) 150,000,000 meters per second
D) 50,000,000 meters per second
- 4. Which type of radiation has the lowest frequency in the electromagnetic spectrum?
A) Ultraviolet rays
B) Visible light
C) Gamma rays
D) Radio waves
- 5. Which phenomenon involves the splitting of light into its component colors?
A) Absorption
B) Scattering
C) Dispersion
D) Amplification
- 6. Which phenomenon causes a spectral shift toward longer wavelengths for distant galaxies?
A) Blueshift
B) Yellow shift
C) Green shift
D) Redshift
- 7. What is the process by which atomic nuclei split into fragments?
A) Beta decay
B) Nuclear fusion
C) Alpha decay
D) Nuclear fission
- 8. How does radiophysics contribute to telecommunications?
A) By providing the technology for wireless communication
B) By developing computer software
C) By designing spacecraft propulsion systems
D) By producing electrical power
- 9. What term describes the bending of light waves around obstacles?
A) Refraction
B) Diffraction
C) Reflection
D) Interference
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