A. an apparent increase in frequency
B. an apparent decrease in frequency
C. an apparent decrease in wavelength
D. no apparent change in frequency
Related Mcqs:
- Fundamental frequency of stationary waves in open pipe is ______________ times the frequency in closed pipe?
A. One
B. Two
C. Four time
D. None of these - Name the branch of science which deals with the study of sound and sound waves?
A. Aeronautics
B. Acoustics
C. Aerostatics
D. AetiologySubmitted by: ABDUL HAYEE
- A stationary wave is set up in the air column of a closed pipe. At the closes end of the pipe _____________________?
A. always an node in formed
B. always an antinode is formed
C. neither node nor antinode is formed
D. sometimes a node and sometimes an antinode is formed - The speed of stationary waves in a stretched string are independent of___________________?
A. Number of loops
B. Tension in the string
C. Point where string is plucked
D. both A and C - Three equal resistors connected in series with a source of e m f together dissipate 10 W of power each. What will be the power dissipated if the same resistors are connected in parallel across the same source of e m f ?
A. 40 W
B. 90W
C. 100W
D. 120W - The distance between any two consecutive nodes or antinodes in a stationary wavelength (λ) is _________?
A. λ
B. λ/2
C. λ/4
D. λ/8Submitted by: Rizwan Ayub Saadi
- hen a body moves in a circle, the angle between its linear velocity and angular velocity is always_______________?
WA. 180°
B. 0°
C. 90°
D. 45° - When a body moves in a circle of radius r with linear speed V its centripetal force is_______________?
A. mV/r2
B. mV/r
C. mV2/r
D. mV2/r2 - Electron moves in the orbit as________________?
A. Simple vibratory motion
B. Standing wave motion
C. Vibratory motion like up and down
D. S.H.M likes the sound - The velocity of an oscillating charge as it moves to and fro along a wire is always_____________?
A. constant
B. zero
C. changing
D. infinite
