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Earth receives 1400 W//m^2 of solar powe...

Earth receives `1400 W//m^2` of solar power. If all the solar energy falling on a lens of area `0.2m^2` is focused on to a block of ice of mass 280 grams, the time taken to melt the ice will be….. Minutes. (`Latent heat of fusion of ice`=`3.3xx10^5J//kg`.)

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Earth receives 1400 W//m^(2) of solar power. If all the solar energy falling on a lens of area 0.2m^(2) is focussed onto a block of ice of mass 2.80g, it takes 110t(in sec) time to melt the ice. Value of t is:

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Find the result of mixing 1kg of ice at 0^(@)C with 1.5kg of water at 45^(@)C . (Specific latent heat of fusioin of ice =336xx10^(3)Jkg^(-1) )

How many calories of heat will be absorbed when 2kg of ice at 0^(@)C melts ? ( Specific latent heat of fusion of ice = 80 cal //g )

Find the final temperature and composition of the mixtue of 1 kg of ice at 0^(@)C and 1.5 kg of water at 45^(@)C . Given that specific heat of water is 4200 J/kg and latent heat of fusion of ice is 3.36xx10^(5)J//kg

A container containing Ice at 0°C and having outside surface area (1.6 m^2) and thickness 1 cm is placed in a boiling water if 2 kg of ice melts in 30 minute, then thermal conductivity of material of container is nearly (Given: Latent heat of fusion of ice = 3.36 x 10^5 J/kg)

RESONANCE-CALORIMETRY AND THERMAL EXPANSION-Exercise
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  2. 50g of ice at 0^(@)C is mixed with 200g of water at 0^(@)C.6 kcal heat...

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  3. Earth receives 1400 W//m^2 of solar power. If all the solar energy fal...

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  4. A 50gram lead bullet, specific heat 0.02 is initially at 30^(@) C. It...

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  5. The temperature of 100g of water is to be raised from 24^@C to 90^@C b...

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  6. An electrically heated coil is immersed in a calorimeter containing 36...

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  8. Level of a certain liquid at 0^(@)C and 100^(@)C are 0 and 10 mm on a ...

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  9. A simple seconds pendulum is constructed out of a very thin string of ...

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  10. A steel rod of length 25cm has a cross-sectional area of 0.8cm^(2) . T...

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  11. A 1-L flask contains some mercury. It is found that at different tempe...

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  12. When two non reactive samples at different temperatures are mixed in a...

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  13. Two identical beakers with negligible thermal expansion are filled wit...

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  14. When m gm of water at 10^(@)C is mixed with m gm of ice at 0^(@)C, whi...

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  15. A bimetallic strip is formed out of two identical strips one of copper...

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  16. There is a rectangular metal plate in which two cavities in the shape ...

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  17. A 0.60 kg sample of water and a sample of ice are placed in two compar...

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  18. A 0.60 kg sample of water and a sample of ice are placed in two compar...

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  19. A 0.60 kg sample of water and a sample of ice are placed in two compar...

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  20. In a container of negligible heat capacity, 200 gm ice at 0^(@)C and 1...

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