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Physics Class 11 - Chapter 8
WavesTest - 3
1.
A stationary wave is set up in the air column of a closed pipe, at the close end of the pipe?
a) Always antinodes is formed
b) Neither node nor antinode
c) Sometime node sometime antinode
d) Always an node is formed
2.
It is possible to distinguish between transverse and longitudinal wave by the property of?
a) Interference
b) Diffraction
c) Refraction
d) Polarization
3.
If stretching force T of wire increases, then its frequency?
a) Remain same
b) Decrease
c) Increases
d) All of these
4.
In vibrating code the points where the amplitude is maximum, is?
a) Crust
b) Node
c) Antinode
d) Trough
5.
Velocity of sound in vacuumed is?
a) 332m/s
b) 320m/s
c) Zero
d) 333m/s
6.
Sound waves do not travel in vacuum because?
a) They are transverse waves
b) They are stationary waves
c) They do not have enough energy
d) They require material medium for their propagation
7.
According to Newton’s sound travel in air under the condition?
a) Adiabatically
b) Isothermacally
c) Isobaric
d) Isochoric
8.
The velocity of sound is greatest in?
a) Water
b) Calcium
c) Air
d) Copper
9.
Increase in velocity of sound in the air for 1C rise in temperature is?
a) 0.61m/s
b) 1.61m/s
c) 61.0m/s
d) 1.00m/s
10.
The distance between two consecutive nodes is?
a) 2 lambda
b) lamda/2
c) lambda
d) lamda/4
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