6 Questions
Which of the following is a type of electromagnetic radiation?
X-rays
What is the unit of measurement for frequency?
Hertz
Which of the following colors of light has the shortest wavelength?
Blue
What is the primary source of light on Earth?
The Sun
What is the phenomenon where light bends as it passes from one medium to another?
Refraction
What is the name for the process by which light waves spread out as they pass through a narrow slit?
Diffraction
Study Notes
Electromagnetic Radiation
- Electromagnetic radiation includes various types, such as radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.
Frequency Measurement
- The unit of measurement for frequency is the Hertz (Hz).
Light Characteristics
- Violet light has the shortest wavelength among the colors of the visible spectrum.
Light Source
- The primary source of light on Earth is the Sun.
Refraction
- Refraction is the phenomenon where light bends as it passes from one medium to another.
Diffraction
- Diffraction is the process by which light waves spread out as they pass through a narrow slit.
Test your knowledge of electromagnetic radiation, frequency measurement, and the wavelength of different colors of light in this quiz based on NCERT Class 7 Science Chapter on Light.
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