Physics
Grade-9
Easy
Question
Mechanical Waves cannot travel through:
- Air
- Water
- Steel
- Space
Hint:
Space is vacuum i.e. there is absence of medium
The correct answer is: Space
Mechanical waves require particulate motion that requires a medium hence in space they cannot travel
Related Questions to study
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Waves that travel perpendicular to the direction of vibrations are known as:
Waves that travel perpendicular to the direction of vibrations are known as:
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Light waves are
Light waves are
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When a longitudinal wave travels through a medium, the particles of the medium show compression and Rarefaction. What happens when compression takes place in the medium?
When a longitudinal wave travels through a medium, the particles of the medium show compression and Rarefaction. What happens when compression takes place in the medium?
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In which of the following media can non-mechanical waves travel?
In which of the following media can non-mechanical waves travel?
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Longitudinal waves are those ___.
Longitudinal waves are those ___.
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In a medium, a mechanical wave travels. With the wave, which of the following quantities is moved from one point to another?
In a medium, a mechanical wave travels. With the wave, which of the following quantities is moved from one point to another?
PhysicsGrade-9
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A longitudinal wave is produced by the vibration of an object. It travels through a medium such as air by forming alternate regions of compression and Rarefaction of air molecules. As a longitudinal wave travels through air, the regions of compression and Rarefaction in it can be shown as:
A longitudinal wave is produced by the vibration of an object. It travels through a medium such as air by forming alternate regions of compression and Rarefaction of air molecules. As a longitudinal wave travels through air, the regions of compression and Rarefaction in it can be shown as:
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A pulse is a wave:
A pulse is a wave:
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What are the two types of mechanical waves?
What are the two types of mechanical waves?
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Sound waves are:
Sound waves are:
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Transverse waves have ________.
Transverse waves have ________.
PhysicsGrade-9
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Choose the correct statements:
Assertion: Sine and cosine functions are periodic functions.
Reason: Sinusoidal functions repeat their values after a definite interval of time.
Choose the correct statements:
Assertion: Sine and cosine functions are periodic functions.
Reason: Sinusoidal functions repeat their values after a definite interval of time.
PhysicsGrade-9
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A 20 g particle moves in SHM with a frequency of 3 oscillations per second and an amplitude of 5 cm. The total distance does the particle move during one oscillation is:
A 20 g particle moves in SHM with a frequency of 3 oscillations per second and an amplitude of 5 cm. The total distance does the particle move during one oscillation is:
PhysicsGrade-9
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If a body is executing simple harmonic motion, then:
If a body is executing simple harmonic motion, then:
PhysicsGrade-9
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Two simple pendulums of lengths 5 m and 20 m respectively are given small linear displacement in one direction at the same time. They will again be in the phase when the pendulum of shorter length has completed .... oscillations.
Two simple pendulums of lengths 5 m and 20 m respectively are given small linear displacement in one direction at the same time. They will again be in the phase when the pendulum of shorter length has completed .... oscillations.
PhysicsGrade-9
