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ICSE Class 10 Answered

how parabolic mirror is better than concave mirror in collecting solar energy
Asked by charan3802 | 23 Oct, 2020, 10:29: AM
answered-by-expert Expert Answer
Parabolic mirrors reduces the effect of spherical abberation which is more likely in concave mirror. 
Due to this spherical abberation, the light rays after reflection focuses at different points.
Thus, parabolic mirror is better than concave mirror in collecting solar energy. 
Answered by Shiwani Sawant | 23 Oct, 2020, 11:55: AM

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ICSE 10 - Physics
what amount of water at 40 degree celsius is to be mixed with 250 grams of ice at 10 - 10 degree Celsius so that equally premium temperature is 25 degree Celsius
Asked by imunilu786 | 29 Oct, 2023, 02:35: PM
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ICSE 10 - Physics
A piece of ice of mass 40g is added to 200g of water at 50 degree celcius
Asked by surendrakumarclw | 20 Mar, 2021, 06:16: PM
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ICSE 10 - Physics
a calorimetry of mass 50g contains 200g of water at 30degree celcius . Calculate the final temperature of the mixture when 40g of ice at -10degree celcius is added to it.
Asked by anuradhastudent12 | 27 Feb, 2021, 08:33: PM
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ICSE 10 - Physics
In the principle of caloriemetry we have to assume that there is no loss of heat but it is not the same practically  is the law of conservation violated in this case??
Asked by chitrachongdar07 | 08 Dec, 2020, 10:55: AM
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ICSE 10 - Physics
how parabolic mirror is better than concave mirror in collecting solar energy
Asked by charan3802 | 23 Oct, 2020, 10:29: AM
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ICSE 10 - Physics
find result of mixing 10g of ice at-10c of water at 10c
Asked by khushalkumarsk | 17 Aug, 2020, 12:37: PM
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ICSE 10 - Physics
ch. heat numerical 8
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Asked by nilesh.dhote74 | 13 Jul, 2020, 12:38: PM
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ICSE 10 - Physics
Is heat a conserved quantity? Give reason in suport of your answer?  
Asked by abhinabasarkar.abhinaba | 17 Jun, 2020, 09:24: PM
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ICSE 10 - Physics
exercise 11 b q 8
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Asked by nilesh.dhote74 | 10 Jun, 2020, 03:00: PM
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ICSE 10 - Physics
In our book, L=Q/m and Q=mc∆t are given then why and how have you written Q=mc∆t+mL?? In calorimetry,  Ex B numerical no. 1
Asked by chaitalisen977 | 19 May, 2020, 03:32: PM
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