Prepare
Practice
MCQs
CBSE MCQs
Engineering MCQs
Online Test
Writing
Create CV
Character Counter
Trending Post
Latest Jobs
Chapter 23: Sound Waves - Science Mcqs for Grade 7
Home
>>
Category
>>
Science Mcqs
>>
Chapter 23: Sound Waves - Science Mcqs for Grade 7
>> Echoes are formed when sound
« Previous
Next »
Engineering MCQs
CBSE MCQs
Q. Echoes are formed when sound
a.
strikes a wall and reflects back
b.
strikes a wall and is absorbed
c.
hits the eardrum repeatedly
d.
breaks
ANSWER: strikes a wall and reflects back
Answer & Explanation
No explanation is available for this question!
« Previous
Next »
Related Content
'Earphones' are
1000mA of current is equal to
Shiny surfaces reflect light more better...
Cactus is well adapted to survive in
To and fro movement of coil makes the co...
The first discovered 'white dwarf' is
An instrument that gives an accurate mea...
The liquid in our body that contains 'he...
The cell wall of yeast is made up of
Compared to an optical telescope, the ra...
The adaptations in fish includes
Bacteria are
A long thick tube produces
On track magnetic levitation trains
The primary task of leaves is to absorb ...
The 'heart' is placed
The chemical formula of ethene is
Bats, owls and fireflies are active at n...
Each component of circuit is shown by a ...
Changes occur in matter at
After the water has been filtered and cl...
Light travels fastest through
The main force that pulls water and diss...
More than half of total blood volume is ...
The number of basic shapes of 'galaxies'...
Ducks move around to look for food and p...
Permanent damage to skin, nerves, limbs ...
The soil which is mixture of clay, sand ...
After Big Bang, the period which Solar s...
Weathering of rocks is affected by
Discussion
➨
Post your comment / Share knowledge
Counter
Online Test
MCQs
Trending
Latest Jobs
▲
