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Indian Certificate of Secondary Education (ICSE), New Delhi
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A prism causes dispersion of white light whereas a rectangular glass block does not. Why?
asked by Nehal G (nehalg) 6 years ago
4

+ 1 more questions by nehalg  

Guys what do we have to write in safe limit of sound?

Coz in the Selina it  is given 0-80db
But in 2017 paper pupils analysis it is given not more than 120 db.
asked by Pratham Shah (pratham2313) 6 years ago
4

+ 1 more questions by pratham2313  

what is the unite of ludness
in seline it is givenphon and it says the level of sound has a unit decibal so unit of loudness is phon or decibal
asked by Rtstud (mdarfath) 6 years ago
2
What is the length of nichrome wire of resistance 5.6 ohms, if the length of a similar wire is 80 cm  and its resistance is 4.2ohms
asked by Jeff mckinley (chende) 6 years ago
1
Pls check out page 194 question 15 .is it correct
asked by Kousalya Senthilkumar (laks2002) 6 years ago
1
Any good electricity numericals?
asked by Momo (zenab13) 6 years ago
1
any economics students??
asked by Aryan Kapoor (aryan9917) 6 years ago
0
Why is soft iron core used in a D.C. Motor and an A.C. Generator?
Can it be because of soft iron's high magnetic permeability and low retentivity?
asked by RaBh (rahulbhardwaj2002) 6 years ago
2
The power rating of an electric bulb is 40W 220 V. Find the power when the potential difference is reduced to 200V

--- My answer is approx. 33 W, is it right?
asked by Ragini Jain (adityajain1234) 6 years ago
5
Should we learn value of wavelength and frequency for red to violet(all colours).
asked by Paul Stefen (japaul) 6 years ago
2

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