NEET · Physics · Doppler Effect — Spot the Error

Exercise and reference answers

Questions

1. Statement parts

   1. When
   2. a
   3. source
   4. approaches
   5. a
   6. stationary
   7. observer,
   8. the
   9. observed
   10. frequency
   11. decreases
   12. .

   Correction

   increases

   Incorrect part

   decreases

2. Statement parts

   1. Doppler
   2. effect
   3. is
   4. observed
   5. only
   6. with
   7. light
   8. waves
   9. .

   Correction

   with both sound and light

   Incorrect part

   only

3. Statement parts

   1. Red
   2. shift
   3. in
   4. galaxy
   5. spectra
   6. indicates
   7. the
   8. galaxy
   9. is
   10. approaching
   11. us
   12. .

   Correction

   receding from

   Incorrect part

   approaching

4. Statement parts

   1. Doppler
   2. formula
   3. for
   4. sound
   5. depends
   6. on
   7. the
   8. velocity
   9. of
   10. the
   11. emitter
   12. only
   13. .

   Correction

   emitter and observer (relative motion)

   Incorrect part

   emitter

Instructions

Tap the wrong word in each Doppler-effect statement.