ICSE − Q & A

what is d definition of principle of reversibility of light

If we are asked the unit of intensity do we write decibel or phon?

+ 1 more questions by agrek  

Soo i am pp43? Or is there some other abhishek? And also, what do i do with this?
asked by Abhishek Agrawal (agrek) 8 years ago
1

Under what condition can focal length on 2 sides of a lens vary?

Three characteristics of musical sound= loudness pitch and quality.              ORR pleasant smooth continuous loe sound level etc etc

Reverbration- If the reflector of an echo is at a distance of less than 17m ,the orginal sound mixes up with the reflected sound.Due to repeated reflections at the reflecting surface the sound gets prolonged.This effect is known as reverbration.

Anyone wanted the definition of reverbration here it is!

+ 1 more questions by boymanner  

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asked by Akanksh (boymanner) 8 years ago
0

Examples of negative work ?

Pls spread this to all

+ 3 more questions by chirayurai  

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asked by Chirayu Rai (chirayurai) 8 years ago
3

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asked by Chirayu Rai (chirayurai) 8 years ago
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asked by Chirayu Rai (chirayurai) 8 years ago
0

is unit of loudness phon or decibel?

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Can someone please define calorimetry