The minimum distance required between the source and the reflecto… - Vidyadip

MCQ

The minimum distance required between the source and the reflector so as to hear the echo in air is

A
10 m
✓
17 m
C
34 m
D
50 m

✓

Answer

Correct option: B.

17 m

17m

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "MCQ" from Sound→Sound — all question types→PHYSICS STD 7 question papers→ICSE Board STD 7 question papers→ICSE Board question paper generator→

Similar questions

Which of the following device is commonly used to measure the volume of liquids such as petrol or kerosene?

The SI unit of mass is :

Select the correct alternative
A ball falls down vertically. Its motion is

The wet clothes dry due to the process of :

Select the correct alternative
The correct relation is :

Which of the following relations is correct?

The SI unit of temperature is $–$

When a power drill bores a hole in a piece of wood, it describes :

When a bulb lights up on passing current, the change of energy is

A body moves 3 km due west and then 4 km due north. The displacement of the body is –