A. Number of loops
B. Tension in the string
C. Point where string is plucked
D. both A and C
Related Mcqs:
- The first overtone of a stretched string of given length is 320 Hz. The first harmonic is_________?
A. 320 Hz
B. 640 Hz
C. 160 Hz
D. 480 HzSubmitted by: Tauseef Ali
- Electromagnetic waves travel in free space with the speed of___________________?
A. λ-rays
B. Positive rays
C. Cathode rays
D. More than sound waves - A stone is whirled in a vertical circle at the end of a string. When the stone is at the highest position the tension in the string is______________?
A. Maximum
B. Zero
C. Equal to the weight of the stone
D. Less than the weight of the stone - 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 - What is the outward force acting on a mass of 10 kg when rotating at one end an inelastic string 10m long at speed of 1m/s ?
A. 1N
B. 10N
C. 2N
D. 100N - A transmitting station emits radio waves of wavelength λ at power P. If h is Planck’s constant & c the speed of light what is the rate of emission of photons ?
A. λ
B. Speed of sound
C. Speed of lightB.
D. h - A wire of length L is stretched by a length E when a force F is applied at one end. If the elastic limit is not exceeded the amount of energy stored in the wire is_________________?
A. FE
B. (FE)
C. FE2/L
D. FE2 - A wire is stretched by a force F which causes an extension 1. The energy stored in the wire is____________________?
A. The extension of the wire is proportional to the force applied
B. The weight of the wire is negligible
C. The wire is not stretched beyond its elastic limit
D. The cross sectional area of the wire remains constant - A wire suspended vertically from one end is stretched by attaching a weight of 20N to the lower end. The weight stretches the wire by 1mm. How much energy is gained by the wire ?
A. 0.01J
B. 0.02J
C. 0.04J
D. 1.0J - 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
