Question 1

Which of the following occur as the energy of a photon increases?
A) The frequency decreases.
B) The speed increases.
C) The wavelength increases
D) The wavelength gets shorter.
E) None of the above occur as the energy of a photon increases.

Accepted Answer

The energy of a photon is directly proportional to its frequency and inversely proportional to its wavelength. Therefore, as the energy of a photon increases, its frequency increases and its wavelength decreases. This corresponds to choice D, which states that the wavelength gets shorter. None of the other choices are correct.

Question 2

The number of cycles that pass through a stationary point is called
A) wavelength.
B) amplitude.
C) frequency.
D) area.
E) median.

Accepted Answer

The number of cycles that pass through a stationary point in one second is called frequency. Wavelength refers to the distance between two consecutive points in a wave that are in phase with each other. Amplitude is the maximum displacement of a wave from its equilibrium position. Area and median are not related to the properties of a wave.

Question 3

When waves of equal amplitude from two sources are in phase when they interact,it is called
A) destructive interference.
B) diffraction.
C) constructive interference.
D) effusion.
E) amplitude.

Accepted Answer

When waves from two sources are in phase, their crests and troughs overlap, creating an even larger amplitude at the points where they meet. This is called constructive interference. Destructive interference is when waves are out of phase, causing them to cancel each other out at their meeting points. Diffraction is the bending of waves around obstacles, and effusion refers to the escape of gas particles through a small hole. Amplitude refers to the magnitude of a wave.

Question 4

Which of the following types of electromagnetic radiation has the lowest frequency?
A) yellow
B) blue
C) orange
D) green
E) purple

Accepted Answer

The answer of Which of the following types of electromagnetic...

Question 5

Calculate the frequency of the green light emitted by a hydrogen atom with a wavelength of 486.1 nm. A) 1.46 × 10¹⁴s^-1 B) 6.86 × 10¹⁴s^-1 C) 4.33 × 10¹⁴s^-1 D) 6.17 × 10¹⁴s^-1 E) 1.62 × 10¹⁴s^-1

Accepted Answer

The formula to calculate the frequency of light is:

frequency = speed of light / wavelength

The speed of light is constant and is approximately 3.00 x 10^8 m/s.

First, we need to convert the given wavelength from nanometers (nm) to meters (m):

486.1 nm = 4.861 x 10^-7 m

Substituting this value into the formula:

frequency = (3.00 x 10^8 m/s) / (4.861 x 10^-7 m)

frequency = 6.17 x 10^14 Hz

Therefore, the frequency of the green light emitted by a hydrogen atom is 6.17 x 10^14 Hz. The correct choice is D.

Question 6

On the electromagnetic spectrum,visible light is immediately between two other wavelengths.Name them.
A) infrared and x-ray
B) radio and microwave
C) gamma ray and ultraviolet
D) microwave and x-ray
E) infrared and ultraviolet

Accepted Answer

According to the electromagnetic spectrum, the wavelengths immediately next to visible light are infrared on one side and ultraviolet on the other side. Therefore, option E is the correct answer.

Question 7

Which of the following visible colors of light has the longest wavelength?
A) blue
B) green
C) yellow
D) red
E) violet

Accepted Answer

According to the visible light spectrum, red light has the longest wavelength (around 700 nanometers) and violet light has the shortest wavelength (around 400 nanometers).

Question 8

When a wave encounters an obstacle or a slit that is comparable in size to its wavelength,it bends around it.This characteristic is called
A) destructive interference.
B) diffraction.
C) constructive interference.
D) effusion.
E) amplitude.

Accepted Answer

The bending of a wave around an obstacle or slit that is comparable in size to its wavelength is called diffraction. This is a characteristic of waves and occurs because of their ability to spread out when encountering an obstacle, resulting in a bending or spreading of the wave pattern.

Question 9

Calculate the energy of the orange light emitted,per photon,by a neon sign with a frequency of 4.89 × 10¹⁴ Hz. A) 3.09 × 10^-19 J B) 6.14 × 10^-19 J C) 3.24 × 10^-19 J D) 1.63 × 10^-19 J E) 5.11 × 10^-19 J

Accepted Answer

The answer of Calculate the energy of the orange light...

Question 10

________ are used to image bones and internal organs.
A) Ultraviolet light
B) Gamma rays
C) Microwaves
D) X-rays
E) Radio waves

Accepted Answer

X-rays are commonly used to image bones and internal organs as they can penetrate through the body and create a shadow image on film or digital detectors. Ultraviolet light, gamma rays, microwaves, and radio waves are not typically used for this purpose.

Question 11

The distance between adjacent crests is called
A) wavelength.
B) amplitude.
C) frequency.
D) area.
E) median.

Accepted Answer

The distance between adjacent crests is known as the wavelength. The wavelength is a key characteristic of waves and is utilized to calculate various properties of the wave, such as frequency and speed. Amplitude, frequency, area, and median are not related to the distance between adjacent wave crests.

Question 12

A sunburn is caused by overexposure to ________ radiation.
A) ultraviolet
B) gamma
C) microwave
D) x-ray
E) radio

Accepted Answer

Sunburns are caused by overexposure to ultraviolet radiation from the sun. Gamma, microwave, x-ray, and radio radiation are not typically associated with sunburns.

Question 13

When waves of equal amplitude from two sources are out of phase when they interact,it is called
A) destructive interference.
B) diffraction.
C) constructive interference.
D) effusion.
E) amplitude.

Accepted Answer

When waves of equal amplitude from two sources are out of phase, they interfere destructively, leading to a decrease in overall amplitude.

Question 14

Which of the following occur as the wavelength of a photon increases?
A) The frequency decreases.
B) The energy increases.
C) The speed decreases.
D) Planck's constant decreases.
E) None of the above occur as the wavelength of a photon increases.

Accepted Answer

As per the equation c = λν (where c is the speed of light, λ is the wavelength, and ν is the frequency), we can observe that if the wavelength (λ) increases, the frequency (ν) must decrease to maintain the constant speed of light. Therefore, option A is correct, and B, C, and D are incorrect.

Question 15

Calculate the energy of the green light emitted,per photon,by a mercury lamp with a frequency of 5.49 × 10¹⁴ Hz. A) 2.75 × 10^-19 J B) 3.64 × 10^-19 J C) 5.46 × 10^-19 J D) 1.83 × 10^-19 J E) 4.68 × 10^-19 J

Accepted Answer

The energy of a photon can be calculated using the formula E = hf, where h is Planck's constant (6.626 × 10^-34 J·s) and f is the frequency of the light. Substituting the given frequency (5.49 × 10^14 Hz) into the formula gives E = (6.626 × 10^-34 J·s)(5.49 × 10^14 Hz) = 3.64 × 10^-19 J.

Question 16

The vertical height of a wave is called
A) wavelength.
B) amplitude.
C) frequency.
D) area.
E) median.

Accepted Answer

The vertical height of a wave is called its amplitude. Wavelength refers to the distance between two consecutive peaks or troughs of a wave. Frequency refers to the number of waves that pass a fixed point in a given period of time. Area and median are not related to waves.

Question 17

Food can be cooked by ________ radiation.
A) ultraviolet
B) gamma
C) microwave
D) x-ray
E) radio

Accepted Answer

Microwaves are commonly used in cooking food. Ultraviolet, gamma, and x-ray radiation can be harmful to human health and are not used in food preparation. Radio waves do not have enough energy to cook food.

Question 18

Which of the following visible colors of light has the highest frequency?
A) green
B) red
C) blue
D) yellow
E) orange

Accepted Answer

Blue light has the highest frequency because it has a shorter wavelength than green, yellow, orange, and red light.

Question 19

Which of the following colors of electromagnetic radiation has the shortest wavelength?
A) blue
B) violet
C) orange
D) green
E) yellow

Accepted Answer

Violet has the shortest wavelength among the given options.

Question 20

Calculate the wavelength (in nm)of the blue light emitted by a mercury lamp with a frequency of 6.88 × 10¹⁴ Hz. A) 229 nm B) 436 nm C) 206 nm D) 485 nm E) 675 nm

Accepted Answer

We can use the formula c = λν, where c is the speed of light, λ is the wavelength, and ν is the frequency.
Rearranging the formula, we get λ = c/ν.
The speed of light is approximately 3.00 × 10^8 m/s (or 3.00 × 10^17 nm/s).
Substituting the given frequency, we get:
λ = (3.00 × 10^17 nm/s) / (6.88 × 10^14 Hz) = 436 nm
Therefore, the answer is B.

Quiz 3: The Quantum Mechanical Model of the Atom

Which of the following occur as the energy of a photon increases?

The number of cycles that pass through a stationary point is called

When waves of equal amplitude from two sources are in phase when they interact,it is called

Which of the following types of electromagnetic radiation has the lowest frequency?

Calculate the frequency of the green light emitted by a hydrogen atom with a wavelength of 486.1 nm.

On the electromagnetic spectrum,visible light is immediately between two other wavelengths.Name them.

Which of the following visible colors of light has the longest wavelength?

When a wave encounters an obstacle or a slit that is comparable in size to its wavelength,it bends around it.This characteristic is called

Calculate the energy of the orange light emitted,per photon,by a neon sign with a frequency of 4.89 × 10¹⁴ Hz.

________ are used to image bones and internal organs.

The distance between adjacent crests is called

A sunburn is caused by overexposure to ________ radiation.

When waves of equal amplitude from two sources are out of phase when they interact,it is called

Which of the following occur as the wavelength of a photon increases?

Calculate the energy of the green light emitted,per photon,by a mercury lamp with a frequency of 5.49 × 10¹⁴ Hz.

The vertical height of a wave is called

Food can be cooked by ________ radiation.

Which of the following visible colors of light has the highest frequency?

Which of the following colors of electromagnetic radiation has the shortest wavelength?

Calculate the wavelength (in nm) of the blue light emitted by a mercury lamp with a frequency of 6.88 × 10¹⁴ Hz.