1.
What are the three measurements wavelength can be expressed in?
Correct Answer(s)
A. Nanometers
B. Centimeters
F. Meters
Explanation
Wavelength is a measure of the distance between two consecutive points in a wave. It can be expressed in different units depending on the scale. Nanometers (nm) are commonly used to measure small wavelengths, such as those in the electromagnetic spectrum. Centimeters (cm) are used for larger wavelengths, such as those in sound waves. Meters (m) are a standard unit for measuring wavelength and can be used for both small and large wavelengths. Therefore, the three measurements in which wavelength can be expressed are nanometers, centimeters, and meters.
2.
The wave's height from the origin to the crest.
Correct Answer(s)
Amplitude
The Amplitude
Explanation
The amplitude of a wave refers to the maximum displacement or distance from the origin to the crest of the wave. It represents the wave's intensity or strength. In this context, the correct answer is "Amplitude" or "The Amplitude," as it accurately describes the wave's height from the origin to the crest.
3.
The speed of light=
Correct Answer
B. 3.00 x 10^8
Explanation
The speed of light is a fundamental constant in physics, denoted by the symbol "c". It is approximately equal to 3.00 x 10^8 meters per second. This value is widely accepted and has been measured through various experiments and observations. It represents the maximum speed at which information or energy can travel through space.
4.
Which is the correct formula for the speed of light.
Correct Answer
A. C=λv
Explanation
The correct formula for the speed of light is c=λv. This formula represents the speed of light (c) as the product of wavelength (λ) and frequency (v). It is derived from the relationship between the speed, wavelength, and frequency of electromagnetic waves.
5.
λ is:
Correct Answer
A. Wavelength
Explanation
The symbol λ represents wavelength in physics. Wavelength is the distance between two corresponding points on a wave, such as the distance between two consecutive peaks or two consecutive troughs. It is usually measured in meters.
6.
v is the symbol for:
Correct Answer
D. Frequency
Explanation
The symbol "v" is commonly used to represent frequency in physics and mathematics. Frequency refers to the number of cycles or oscillations of a wave that occur in a given time period. It is measured in Hertz (Hz), which represents the number of cycles per second. Therefore, the correct answer is Frequency.
7.
c is the symbol for:
Correct Answer
C. Speed of light
Explanation
The symbol "c" is commonly used to represent the speed of light in physics. It is derived from the Latin word "celeritas," meaning swiftness or speed. The speed of light in a vacuum is a fundamental constant in physics, denoted by the symbol "c" and has a value of approximately 299,792,458 meters per second. This constant plays a crucial role in various scientific theories and equations, such as Einstein's theory of relativity.
8.
Particles called photons are emitted in the:
Correct Answer
B. pHotoelectric Effect
Explanation
The photoelectric effect is the phenomenon where photons are emitted when light is incident on a material surface. This effect occurs when the energy of the photons is sufficient to dislodge electrons from the atoms of the material. These emitted photons carry the excess energy that was absorbed by the electrons during the interaction with the incident light. Therefore, the photoelectric effect is the correct answer as it accurately describes the emission of photons in this process.
9.
A particle of electromagenetic radiation with no mass.
Correct Answer
B. pHotons
Explanation
Photons are particles of electromagnetic radiation that have no mass. They are the fundamental particles of light and other forms of electromagnetic radiation, such as radio waves, X-rays, and gamma rays. Unlike protons, which are subatomic particles with mass and a positive charge, photons are massless and have no electric charge. Borons and botons are not particles of electromagnetic radiation and do not fit the description given in the question.