In a slinky

Important Questions on Sound

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment Some Solved CBSE Sample Questions>Q 15

A student performs the experiment of 'reflection of sound'. He/she records following values of the angle of incidence and angle of reflection.

S.No.	Set $1$	Set $2$	Set $3$	Set $4$	Set $5$
Angle of incidence	$30°$	$40°$	$45°$	$50°$	$60°$
Angle of reflection	$60°$	$50°$	$45°$	$30°$	$60°$

The sets correctly by him/her are

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment Some Solved CBSE Sample Questions>Q 16

For finding the velocity of a pulse propagated through a stretched string:

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment Some Solved CBSE Sample Questions>Q 17

A student sets up a slinky on a smooth table-top in the manner shown here

How can he produce transverse waves in slinky by moving its free end Q?

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment Some Solved CBSE Sample Questions>Q 18

A wave transfers a physical quantity '$X$' from one place to another, where '$X$' is:

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment Some Solved CBSE Sample Questions>Q 19

A pulse is generated at one end of the slinky of length $10 \mathrm{m}$. The pulse returns back to its point of generation in $10$ seconds. The velocity of the pulse in the slinky will be:

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment Some Solved CBSE Sample Questions>Q 20

A longitudinal pulse is produced in a slinky. The frequency of the pulse is $60 \mathrm{Hz}$ and it travels at a speed of $30 \mathrm{cm} {\mathrm{s}}^{-1}$. The separation between consecutive compression is:

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment Some Solved CBSE Sample Questions>Q 21

Find out which of the following statements regarding sound is false.

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>HOTS Higher Order Thinking Skill & Brain Twisting>Q 1

Is the speed of wave motion same in all directions?