Wavelength Problems In Physics -Multiple Choice Questions Quiz

Question 1: The distance between two consecutive crests or troughs of a wave is called the:

(a) Amplitude
(b) Wavelength
(c) Frequency
(d) Period

Question 2: A sound wave with a frequency of 440 Hz travels in air at a speed of 340 m/s. What is the wavelength of this sound wave?

(a) 0.77 m
(b) 0.85 m
(c) 1.54 m
(d) 3.40 m

Question 3: Which color of light has the shortest wavelength in the visible spectrum?

(a) Red
(b) Green
(c) Blue
(d) Violet

Question 4: A radio wave with a wavelength of 3 meters has a frequency of:

(a) 1 Hz
(b) 3 Hz
(c) 10 Hz
(d) 30 Hz

Question 5: Electromagnetic waves travel at the speed of light in a vacuum, which is approximately:

(a) 3 × 10^6 m/s
(b) 3 × 10^7 m/s
(c) 3 × 10^8 m/s
(d) 3 × 10^9 m/s

Question 6: A water wave travels with a speed of 2 m/s and has a wavelength of 1 meter. What is the frequency of this water wave?

(a) 0.5 Hz
(b) 1 Hz
(c) 2 Hz
(d) 3 Hz

Question 7: A light wave with a wavelength of 500 nm (nanometers) has a frequency of approximately:

(a) 1.5 × 10^14 Hz
(b) 3.0 × 10^14 Hz
(c) 6.0 × 10^14 Hz
(d) 1.2 × 10^15 Hz

Question 8: Which type of wave requires a medium (such as air, water, or solids) for its propagation?

(a) Electromagnetic waves
(b) Sound waves
(c) Light waves
(d) Radio waves

Question 9: A microwave oven uses electromagnetic waves with a frequency of 2.45 GHz. What is the wavelength of these microwaves?

(a) 0.122 m
(b) 0.245 m
(c) 12.2 m
(d) 24.5 m

Question 10: Which property of a wave is related to its energy, not its speed or frequency?

(a) Wavelength
(b) Amplitude
(c) Frequency
(d) Phase

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Total score: /10

Answer key:

Question 1: b

Question 2: c

Question 3: d

Question 4: a

Question 5: c

Question 6: b

Question 7: c

Question 8: b

Question 9: a

Question 10: b