ELECTROMAGNETIC SPECTRUM

What electromagnetic wave has a lower frequency than the visible light?

• X-rays

• Gamma rays

• Infrared rays

• Ultraviolet rays

Which electromagnetic wave carries more energy than the others?

• Microwaves

• Radio waves

• UV radiations

• Visible Light

What electromagnetic wave is sometime called heat rays?

• Gamma rays

• Infrared

• Radio waves

• Visible light

What is the wavelength of the wave with a frequency of 3 x 10­­_­⁹ Hz?

• 1.0 x 10^-1m

• 1.0 x 10 ¹ m

• 1.0 x 10^-2 m

• 1.0 x 10² m

What is the value of the speed of light?

• 30 m/s

• 300 m/s

• 300 000 m/s

• 300 000 000m/s

Which of the following statements BEST describes the mathematical among frequency, wavelength and energy?

• They are directly proportional to each other.

• Wavelength and frequency are directly proportional but both of them are inversely proportional to energy.

• Wavelength and energy are directly proportional but both of them are inversely proportional to frequency.

• Energy and frequency are directly proportional to each other but both of them are inversely

  proportional to wavelength.

Which statement is TRUE about Electromagnetic waves?

I. It transfers energy

II. It travels in vacuum

III. It follows straight path

IV. It is a transverse wave.

• I, II,III

• III,IV

• I,II,III,IV

• I,III,IV

What is common to all Electromagnetic waves?

• Frequency

• Speed

• Wavelength

• Energy

Who discovered radio wave?

• James Clerk Maxwell

• Christian Oersted

• Heinrich Hertz

• Michael Faraday

Who is the Father of Electromagnetism?

• James Clerk Maxwell

• Christian Oersted

• Heinrich Hertz

• Michael Faraday