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The rate at which solar energy is received by every square metre of area directly facing the sun is 1400 W. A rectangular solar heater of side 2m by 2.5m working at 50% efficiency utilizes this energy to heat water filled completely in a cubical containers of side 1 m. What is the time required (in seconds) to raise the temperature of water by 1 degree Celsius. The heat capacity of the container assumed to be negligible and assume the sun to be directly overhead on the container.

Thanks
asked by Prateek Mukherjee (prat172) 6 years ago
1

+ 1 more questions by prat172  

Last day...
asked by Darth Vader (aj87) 6 years ago
2

+ 7 more questions by aj87  

Can You all give 2 reasons as to why the Thar is a desert area??
asked by Saeng (kimjennie) 6 years ago
3

+ 1 more questions by kimjennie  

8 days for Burning Maze.
asked by Aditi Prasad (pp201540) 6 years ago
1

+ 2 more questions by pp201540  

Heyy! I made a tribute to Avicii! Hope you like it.  Please do like and subscribe.    https://youtu.be/YH9HxdS-LEM

Had nothing to do after boards xD Hope you support me :v Plus i'll release my own music too. XD
asked by Subodh Kakade (subodhkakxde19) 6 years ago
1
Guys! Its 21 April. What are the chances that ICSE Board may declare the results this month?
asked by Ragini Jain (adityajain1234) 6 years ago
2
is there any issue in history if in every question there are more number of points than that mentioned in the question paper to write??
asked by Ashutosh Dash (ashutosh_dash) 6 years ago
3
Why alkanes are insoluble in water??
asked by Vindhya Badal (_itsme_) 6 years ago
3
Hi frndzz,
How is TIME ??
asked by Snigdha (silver2002) 6 years ago
4
Which workbook is best for echoes and reverie:evergreen,beeta or Oxford publication?

Anyone leaving isc and turning to cbse board this year?How do u think it'll benefit u??
asked by Fire Bird (firebird) 6 years ago
2

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