EASY
Earn 100

What do you mean by reflection of sound waves ? State the laws of reflection.

Important Questions on Sound

MEDIUM
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
EASY

What is reflection of sound?

MEDIUM
An incident sound wave strikes a reflecting surface at an angle of 50°. What is the angle between the incident wave and the reflected wave?
EASY
What is meant by 'reflection of sound'? What type of surfaces are the best for reflecting sound?
EASY
Explain the working of a megaphone.
EASY
While performing an experiment on verifying laws of reflection of sound, a student is to choose from (i) a narrow or a wide tube, and (ii) a strong or a faint source of sound.
The observed experimental difference, between the values of angle of incidence and angle of reflection, is likely to be minimum when he chooses a
MEDIUM

The correct position of the ear of the observer is shown in:

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EASY
For doing the experiment on the verification of laws of reflection of sound,
EASY
State the laws of reflection of sound.
EASY
If the reflecting surface used is a wooden board covered with woollen cloth, then the reflected sound heard at the end of tube B will be
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MEDIUM
State the laws of reflection of sound.
MEDIUM
What do you mean by reflection of sound ?
EASY
For verifying the laws of reflection of sound experimentally, the reflecting surface (screen) used should be
EASY
Name any two objects which are good reflectors of sound.
EASY
For verifying the laws of reflection of sound experimentally, the reflecting surface (screen) used should be
EASY
Narrow metal tubes, well polished from inside, are used in this experiment. The tubes should be narrow in order to make sound waves
EASY
What is meant by reflection of sound?
MEDIUM

While doing an experiment on verifying the laws of reflection of sound, four students measured the angles i and r as shown in the diagram below. The correct measurement of the angles of incidence and angles of reflection has been done by which student?

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MEDIUM
Describe an experiment to verify the laws of reflection of sound.
EASY
Name three devices which work on the reflection of sound.