This is Physics MCQs section with detailed explanations for preparation of screening tests, interviews for government jobs. In this section candidate will learn MCQs on variety of topics from the subject.
an apparent increase in frequency
an apparent decrease in frequency
an apparent decrease in wavelength
no apparent change in frequency
See Answer
Added By: Ak Aamir
Answer
: an apparent decrease in frequency
Explanation
: N/A
fopen = 2 fclosed
fclosed = 2fopen
fopen = fclosed
fopen = 1 / f closed
: fopen = 2 fclosed
281m/sec
333m/sec
340m/sec
all of the above
: 281m/sec
Two times
Three times
Four time
Six time
: Four time
Number of loops
Tension in the string
Point where string is plucked
both A and C
: both A and C
Dopplers effect
Interference of waves
Beats phenomena
All of these
: Dopplers effect
matter waves
electromagnetic waves
carrier waves
mechanical waves
: mechanical waves
decreases
increases
remains unchanged
becomes zero
: remains unchanged
remains the same
any of above
: increases
refraction
polarization
interference
diffraction
: polarization
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