- (A) decreases
- (B) increases
- (C) remains the same
- (D) any of above
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- (A) decreases
- (B) increases
- (C) remains unchanged
- (D) becomes zero
- (A) matter waves
- (B) electromagnetic waves
- (C) carrier waves
- (D) mechanical waves
- (A) Dopplers effect
- (B) Interference of waves
- (C) Beats phenomena
- (D) All of these
- (A) Number of loops
- (B) Tension in the string
- (C) Point where string is plucked
- (D) both A and C
- (A) Two times
- (B) Three times
- (C) Four time
- (D) Six time
- (A) 281m/sec
- (B) 333m/sec
- (C) 340m/sec
- (D) all of the above
- (A) fopen = 2 fclosed
- (B) fclosed = 2fopen
- (C) fopen = fclosed
- (D) fopen = 1 / f closed
- (A) an apparent increase in frequency
- (B) an apparent decrease in frequency
- (C) an apparent decrease in wavelength
- (D) no apparent change in frequency
- (A) only even harmonics are present
- (B) only odd harmonics are present
- (C) both even and odd harmonics are present
- (D) selected harmonics are present
