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9th Class Chapter 1 Physics Short Questions

An important facility for 9th class students preparing for short questions physics 9th class chapter 1 of BISE. Get hundreds of questions to prepare and get better marks in 9th physics
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Question: 1
Describe the structure of ripple tank
Answer: 1
1-6
ripple tank consist of a rectangular tray having glass bottom and is placed nearly half meter above the surface of table
Question: 2
what is diffraction?
Answer: 2
2-6
the bending or spreading of waves around the sharp edges or obstacles is called diffraction.
Question: 3
Electric charge
Answer: 3
3-6
it is the property of a material due to which its attracts of repets other bodies. in 1600 A.D Gilbert showed that some of the substance when rubbed with other acquired the property of attraction.
A similar property is observed when a glass rod is rubbed with silk or abonite rod is rubbed with animal fur
Question: 4
what is the displacement of an obeject of an object in SHM when K.E and P.E are equal?
Answer: 4
4-6
when K.E and P.E are equal then the displacement will be the half of amplitude of vibrating body.
Question: 5
How can you define term wave?
Answer: 5
5-6
A wave is disturbance in the medium which causes the particles of medium to undergovibratory motion
Question: 6
what is time period?
Answer: 6
6-6
the time taken by vibrating body to complete its one vibration is called time period.

9th Class Physics Chapters Short Questions