11th class Physics chapter 8 online mcq test with answers for FSc part 1 Physics chapter 8 (Waves)

Physics Fsc Part 1 Chapter 8 Online Test

Sr. #	Questions	Answers Choice
1	In stationary waves the points which always remain at rest are.	Nodes Antinodes Crest Trough
2	In stationary waves, the velocity of particle at the node is.	Maximum Infinite Zero Varible
3	The periodic variations of sound between maximum and minimum loudness are called.	Doppler's effect reflection Laplace correction Beats
4	In order to produce beats, the two sound waves should have.	The same amplitude Slightly different amplitude The same frequency slightly different frequencies.
5	Two tunign forks of frequencies 260 Hz and 256 Hz are sounded together , the number of beats per second is.	2 258 516 4
6	Beats can be heard when difference of frequency is not more than.	8 Hz 10 Hz 4 Hz 6 Hz
7	Two tuning forks of frequencies 240 Hz and 243 Hz are sounded together, the number of beats per second is.	Zero 2 3 4
8	On loading the prong of a tuning fork with wax, the frequency of sound.	Increases Decreases Remains same First increases then decrease
9	Diffraction is a special type of	Reflection Polarization Interference Refraction
10	When two identical waves superimposed, which can change.	Wave length Frequency Velocity Amplitude
11	When two identical travelling waves are superimposed, velocity of resultant wave.	Decreases Increases Remain same Becomes zero
12	Two waves of same frequency and moving in the same direction produces.	Interference Diffraction Beats Stationary waves
13	The process followed by Newton for the determination of speed of sound in air is	Adiabatic Isothermal Isobaric Isochoric
14	The speed of sound in ari at 0 ^oC is 332 ms-1, Then the speed at 40 ^oC will be	372 ms-1 356 ms-1 346 ms-1 332 ms-1
15	Velocity of sound is independent of	Temperature Density Pressure Medium
16	When sound waves enter in different medium, the quantity that remains unchanged is.	Intensity Speed Frequency Wave length
17	the velocity of sound is maximum at 20 ^oC in	Lead Copper Glass Iron

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