Explain crest and trough in a transverse wave.

Important Questions on Model Questions for Year-End Examination

MEDIUM

9th CBSE

IMPORTANT

Physics>Chapter 7 - Model Questions for Year-End Examination>Model Questions for Year-End Examination>Q (z)

How will you show that sound waves obey the laws of reflection?

EASY

9th CBSE

IMPORTANT

Physics>Chapter 7 - Model Questions for Year-End Examination>Model Questions for Year-End Examination>Q (b)

Describe the state of weightlessness with the help of a suitable example.

EASY

9th CBSE

IMPORTANT

Physics>Chapter 7 - Model Questions for Year-End Examination>Model Questions for Year-End Examination>Q (e)

The figure given below shows the distance-time graph of three people $A, B$ and $C$. On the basis of the graph, answer the following question.
Which of the three is travelling the fastest?

EASY

9th CBSE

IMPORTANT

Physics>Chapter 7 - Model Questions for Year-End Examination>Model Questions for Year-End Examination>Q (e)

The figure given below shows the distance-time graph of three people $A, B$ and $C$. On the basis of the graph, answer the following question.
Are all three people ever at the same point on the road?

EASY

9th CBSE

IMPORTANT

Physics>Chapter 7 - Model Questions for Year-End Examination>Model Questions for Year-End Examination>Q (e)

The figure given below shows the distance-time graph of three people $A, B$ and $C$. On the basis of the graph, answer the following question.
When $B$ passes $A$, where is $C$?

HARD

9th CBSE

IMPORTANT

Physics>Chapter 7 - Model Questions for Year-End Examination>Model Questions for Year-End Examination>Q (e)

The figure given below shows the distance-time graph of three people $A, B$ and $C$. On the basis of the graph, answer the following question.
How far did $B$ travel between the time he passed $C$ and $A$?

MEDIUM

9th CBSE

IMPORTANT

Physics>Chapter 7 - Model Questions for Year-End Examination>Model Questions for Year-End Examination>Q (e)

The figure given below shows the distance-time graph of three people $A, B$ and $C$. On the basis of the graph, answer the following question.
How fast did $B$ travel between the time he passed $C$ and $A$?

EASY

9th CBSE

IMPORTANT

Physics>Chapter 7 - Model Questions for Year-End Examination>Model Questions for Year-End Examination>Q (f)

Given below are some speed-time graphs. In which of the graphs speed is constant?