SATHEE: Properties Of Solids And Liquids Question 454

Properties Of Solids And Liquids Question 454

Question: A container contains hot water at $100^{\circ} C$ . If in time $T_{1}$ temperature falls to $80^{\circ} C$ and the time $T_{2}$ temperature falls to $60^{\circ} C$ form $80^{\circ} C$ , then

Options:

A) $T_{1} = T_{2}$

B) $T_{1} > T_{2}$

C) $T_{1} < T_{2}$

D) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

[c] Rate of coiling $= \frac{- d θ}{d t} \propto (\frac{θ_{1} + θ_{2}}{2} - θ_{0})$ In second case average temperature will be less hence rate of coiling will be less. Therefore time taken will be more than 4 minutes.

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Properties Of Solids And Liquids Question 454

Question: A container contains hot water at $100^{\circ} C$ . If in time $T_{1}$ temperature falls to $80^{\circ} C$ and the time $T_{2}$ temperature falls to $60^{\circ} C$ form $80^{\circ} C$ , then

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

Properties Of Solids And Liquids Question 454

Question: A container contains hot water at 100∘C . If in time T1 temperature falls to 80∘C and the time T2 temperature falls to 60∘C form 80∘C , then

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

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Question: A container contains hot water at $100^{\circ} C$ . If in time $T_{1}$ temperature falls to $80^{\circ} C$ and the time $T_{2}$ temperature falls to $60^{\circ} C$ form $80^{\circ} C$ , then