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DOPPLER EFFECT – QUESTIONS

In this simple test you can confirm your understanding of the Doppler effect phenomenon. Each question can has zero or one or more After filling the test press the button Confirm.

1. For Doppler effect fits the relation

f = f0(1±v/c)

Δf = ±v/c

Δf /f0 = ±v/c

2. Which processes can be affected by Doppler effect?

all periodical processes

light

sound

3. The moving source has specific frequency. What frequency will the Bart Simpson hear?

Bart Simpson

higher

lower

same

4. Bart Simpson on previous image will sense

shorter wave length

longer wave length

5. The relation between frequency and period is

f = 1/T

f = 2/T

f = 2π/T

6. The relation between frequency and angular frequency is

f = 1/ω

f = ω/3π

f = 2πω

7. Which statement fits for this image?

Rázová vlna

Source has higher velocity than the wave.

Source has lower velocity than the wave.

Source has the same velocity as the wave.

8. Which statement fits for this image?

Rázová vlna

Source has higher velocity than the wave.

Source has lower velocity than the wave.

Source has the same velocity as the wave.

9. Shock wave can originate

if the source moves faster than the wave

if the source moves slower than the wave

if the source moves with the same velocity as the wave

10. Doppler effect is used by

police for measuring the car speed

medical doctors for observing organs

astronomers for imaging the inside of the Sun

astronomers for measuring the speed of stars and galaxies