Quiz for Properties

Q1: What is the speed of electromagnetic waves in a vacuum?

A. 3 × 10^8 m/s B. 1.5 × 10^8 m/s C. 3 × 10^6 m/s D. 1.5 × 10^6 m/s

Q2: Which of the following waves has the longest wavelength?

A. Gamma rays B. Ultraviolet rays C. Infrared rays D. Microwaves

Q3: Which of these electromagnetic waves has the highest frequency?

A. Radio waves B. Microwaves C. X-rays D. Infrared rays

Q4: Which electromagnetic wave is used for satellite communication?

A. Gamma rays B. Microwaves C. Infrared rays D. Ultraviolet rays

Q5: Which of the following waves can be polarized?

A. Sound waves B. X-rays C. Microwaves D. Longitudinal waves

Q6: Which electromagnetic wave is used in remote sensing?

A. Microwaves B. Infrared rays C. Gamma rays D. X-rays

Q7: Which of the following is a transverse wave?

A. Sound B. Electromagnetic wave C. Water wave D. Shock wave

Q8: Which electromagnetic radiation is used in night vision equipment?

A. Ultraviolet B. Infrared C. Microwaves D. Radio waves

Q9: What is the relation between electric and magnetic fields in EM waves?

A. Perpendicular to each other and to direction of propagation B. Parallel to each other C. In opposite directions D. Only electric field exists

Q10: EM waves do not require a ___ for propagation.

A. Medium B. Direction C. Charge D. Magnet

Q11: Which EM wave is most penetrating?

A. Microwaves B. Infrared rays C. Gamma rays D. Ultraviolet rays

Q12: Which of the following is not part of the EM spectrum?

A. Ultraviolet B. Visible light C. Beta particles D. X-rays

Q13: What causes EM waves to propagate?

A. Oscillating electric and magnetic fields B. Static charges C. Constant current D. Permanent magnets

Q14: Which of the following is not a property of EM waves?

A. They are transverse B. They can travel in vacuum C. They are mechanical waves D. They carry energy

Q15: Which property of EM waves changes in different media?

A. Frequency B. Wavelength C. Charge D. Spin

Q16: Who predicted the existence of EM waves?

A. Newton B. Faraday C. Maxwell D. Einstein

Q17: Which wave has more energy: ultraviolet or infrared?

A. Ultraviolet B. Infrared C. Same D. Depends on medium

Q18: Which of these is not affected by electric fields?

A. Gamma rays B. Electrons C. Protons D. Alpha particles

Q19: Which part of the EM spectrum is visible to human eyes?

A. Infrared B. Ultraviolet C. Visible light D. X-rays