A. Longitudinal
B. Transverse
C. Periodic
D. both A and C
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Related Mcqs:
- An alternating current of the r.m.s value of 4.0 A and frequency 50Hz flows in a circuit containing a 10Ω resistor. The peak current is then ?
A. 20A
B. 20.66A
C. 6.66A
D. 5.66A - A 100µF capacitor with a 12V source in series having frequency 50Hz will offer a capacitive reactance of about______________?
A. 32Ω
B. 62Ω
C. 50Ω
D. 100Ω - A man lifts vertically a weight of 40kg through 1m in 10s; while a chile lifts vertically a weight of 10kg through a distance of 1m in 1s. What will be correct inference ?
A. man does more work than child
B. child does more work than man
C. both do the same amount of work
D. it is a foolish question - 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 - Waves emitted from the antenna are__________________?
A. Sound waves
B. Electromagnetic waves
C. Radio waves
D. Modulated waves - A 10Ω electric heater is connected to a 220V 50Hz mains supply. What is the peak value of the potential difference across the heater element ?
A. 220V
B. 220/ 2V
C. 110V
D. 220 √2V - In vibrating cord the points where the amplitude is maximum, are called ___________________?
A. antinodes
B. nodes
C. troughs
D. crests - Laplace found that the alternate compressions and rarefactions produced in sound waves follows ________________?
A. isothermal law
B. adiabatic law
C. isochoric law
D. all of the above - In an angular motion, Newton’s second law of motion is_____________?
A. F=ma
B. F=τp/It
C. Στ = I α
D. All above - A simple pendulum has a bob of mass m and its frequency is f. If we replaced the bob with a heavier one say of 2m then that will be its new frequency ?
A. 1/4f
B. 1/2f
C. frequency lower than 20 Hz
D. 2f
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