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PPSC Physics Topic 5 Waves and Wave Properties of Light
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Total Questions20
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Time Allowed20
PPSC Physics Topic 5 Waves and Wave Properties of Light
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Question # 1
A cork moes at 5 m s-1 on the crest of a wave The distance between the crests is 10 m. The frequency of the wave motion is.
Question # 2
Light wave are
Question # 3
Plane polarized light can be produce dby
Question # 4
Light product by a single Nicole is
Question # 5
A disturbance that travels through space and time usually accompanied by energy transfer is called.
Question # 6
According to Huygen's principle
Question # 7
Sound wave do not travel in vacuum because.
Question # 8
The average amount of energy transported by a wave per unit area per unit time is termed as
Question # 9
Two waves which combine to produce a resultant by reinforcing each other of every point demonstrate.
Question # 10
If the wave length of a wire is 1 cm and its period is 0.02 s, the velocity of the wave will be
Question # 11
Which of the following characteristics of a wave is independent of the others.
Question # 12
Huygen's principle is used to explain the
Question # 13
A girl standing 150 m in front of tall building fires a pistol A boy standing 350 m behind her hears two bangs 1 s apart from this information what is the speed of sound in air.
Question # 14
When a transverse wave is reflected on going from a more dense to a less dense medium.
Question # 15
A water wave is an example of.
Question # 16
Interference through thin films depends upon
Question # 17
When the source and observer are moving away from each other the apparent pitch will
Question # 18
Two sources of sound are said to be in resonance when.
Question # 19
Soap film in sunlight appears coloured due to
Question # 20
The distance between any two consecutive bright or dark fringes is called.
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