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Wavelength MDCAT MCQs with Answers

Wavelength MDCAT MCQs

Welcome to the Wavelength MDCAT MCQs with Answers. In this post, we have shared Wavelength Multiple Choice Questions and Answers for PMC MDCAT 2024. Each question in MDCAT Physics offers a chance to enhance your knowledge regarding Wavelength MCQs in this MDCAT Online Test.

Wavelength MDCAT MCQs Test Preparations

What is the wavelength of a wave if its frequency is 10 Hz and its speed is 20 m/s?
A) 0.5 m
B) 2 m
C) 10 m
D) 200 m

Answer
B) 2 m

The wavelength of a wave is inversely proportional to its:
A) Frequency
B) Speed
C) Amplitude
D) Time period

Answer
A) Frequency

What is the wavelength of a sound wave with a speed of 340 m/s and a frequency of 680 Hz?
A) 0.5 m
B) 1 m
C) 2 m
D) 0.25 m

Answer
A) 0.5 m

If the wavelength of a wave is doubled, what happens to its frequency?
A) It is doubled
B) It is halved
C) It remains the same
D) It is quadrupled

Answer
B) It is halved

What is the wavelength of a wave with a frequency of 250 Hz and a speed of 500 m/s?
A) 1.5 m
B) 2 m
C) 5 m
D) 0.5 m

Answer
C) 2 m

Which of the following waves has the longest wavelength?
A) Radio waves
B) Microwaves
C) Infrared waves
D) X-rays

Answer
A) Radio waves

If the wavelength of a wave is 0.01 m and its frequency is 50 Hz, what is the speed of the wave?
A) 0.5 m/s
B) 5 m/s
C) 0.02 m/s
D) 500 m/s

Answer
B) 0.5 m/s

The wavelength of a sound wave depends on the:
A) Frequency of the sound
B) Speed of the sound
C) Medium through which the sound travels
D) All of the above

Answer
D) All of the above

Which type of wave has the shortest wavelength?
A) Gamma rays
B) X-rays
C) Ultraviolet rays
D) Visible light

Answer
A) Gamma rays

The wavelength of a wave is:
A) Directly proportional to its speed
B) Directly proportional to its frequency
C) Inversely proportional to its frequency
D) Inversely proportional to its speed

Answer
C) Inversely proportional to its frequency

If the speed of a wave is 300 m/s and its wavelength is 10 m, what is its frequency?
A) 30 Hz
B) 3 Hz
C) 3000 Hz
D) 0.03 Hz

Answer
A) 30 Hz

What is the wavelength of a wave with a frequency of 400 Hz and a speed of 200 m/s?
A) 0.5 m
B) 1 m
C) 2 m
D) 0.2 m

Answer
C) 0.5 m

The wavelength of a wave is defined as the distance between:
A) Two consecutive crests
B) Two consecutive troughs
C) Two consecutive compressions
D) All of the above

Answer
D) All of the above

If the wavelength of a wave is 5 m and its speed is 100 m/s, what is its frequency?
A) 20 Hz
B) 50 Hz
C) 10 Hz
D) 25 Hz

Answer
B) 20 Hz

The wavelength of an electromagnetic wave is:
A) The same in all media
B) Shorter in a medium with a higher refractive index
C) Longer in a medium with a higher refractive index
D) Independent of the medium

Answer
B) Shorter in a medium with a higher refractive index

Which of the following has the longest wavelength?
A) Ultraviolet light
B) Infrared light
C) Microwaves
D) Gamma rays

Answer
C) Microwaves

The wavelength of a wave can be affected by:
A) Temperature
B) Pressure
C) Medium
D) All of the above

Answer
D) All of the above

If the wavelength of a wave is halved, what happens to its frequency?
A) It is doubled
B) It is halved
C) It remains the same
D) It is quadrupled

Answer
A) It is doubled

The wavelength of a wave is 2 m and its frequency is 5 Hz. What is the speed of the wave?
A) 10 m/s
B) 2.5 m/s
C) 7 m/s
D) 5 m/s

Answer
A) 10 m/s

The wavelength of a wave in a medium is 0.5 m. If the wave speed is 150 m/s, what is the frequency?
A) 300 Hz
B) 75 Hz
C) 150 Hz
D) 100 Hz

Answer
B) 300 Hz

What is the relationship between wavelength and frequency in a wave?
A) Wavelength is proportional to frequency
B) Wavelength is inversely proportional to frequency
C) Wavelength is equal to frequency
D) Wavelength and frequency are unrelated

Answer
B) Wavelength is inversely proportional to frequency

The wavelength of an electromagnetic wave in a vacuum is:
A) Longer than in air
B) Shorter than in air
C) The same as in air
D) It varies with frequency

Answer
C) The same as in air

If the wavelength of a wave is 0.1 m and its frequency is 10 Hz, what is the speed of the wave?
A) 1 m/s
B) 10 m/s
C) 100 m/s
D) 0.01 m/s

Answer
B) 1 m/s

The wavelength of a sound wave in air is affected by:
A) Temperature
B) Humidity
C) Pressure
D) All of the above

Answer
D) All of the above

A wave has a wavelength of 0.02 m and a frequency of 50 Hz. What is its speed?
A) 1 m/s
B) 2 m/s
C) 10 m/s
D) 0.5 m/s

Answer
C) 1 m/s

Which of the following waves has the shortest wavelength?
A) Gamma rays
B) Radio waves
C) Microwaves
D) Infrared rays

Answer
A) Gamma rays

If the speed of a wave in a medium is 80 m/s and the frequency is 20 Hz, what is the wavelength?
A) 4 m
B) 0.25 m
C) 1.6 m
D) 0.8 m

Answer
C) 4 m

The wavelength of visible light ranges approximately from:
A) 1 nm to 10 nm
B) 10 nm to 100 nm
C) 400 nm to 700 nm
D) 1 µm to 10 µm

Answer
C) 400 nm to 700 nm

What happens to the wavelength of a wave if its speed is doubled and frequency remains constant?
A) The wavelength is doubled
B) The wavelength is halved
C) The wavelength remains the same
D) The wavelength is quadrupled

Answer
A) The wavelength is doubled

The wavelength of a wave is directly proportional to the:
A) Wave speed
B) Frequency
C) Amplitude
D) Energy

Answer
A) Wave speed

If a wave has a wavelength of 0.5 m and a frequency of 10 Hz, the speed of the wave is:
A) 5 m/s
B) 0.05 m/s
C) 50 m/s
D) 0.5 m/s

Answer
A) 5 m/s

What is the wavelength of a wave with a frequency of 2 Hz and a speed of 6 m/s?
A) 3 m
B) 12 m
C) 1 m
D) 0.33 m

Answer
A) 3 m

The wavelength of a wave is:
A) The distance traveled by the wave in one second
B) The distance between two consecutive crests or troughs
C) The time taken for one complete cycle
D) The distance between two consecutive compressions

Answer
B) The distance between two consecutive crests or troughs

The wavelength of a light wave is:
A) Larger than the wavelength of radio waves
B) Shorter than the wavelength of infrared waves
C) Equal to the wavelength of microwaves
D) The same as the wavelength of X-rays

Answer
B) Shorter than the wavelength of infrared waves

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