EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 14 - Heat Transfer>KCET (UG) 2018>Q 2

HARD

KCET (UG)

IMPORTANT

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A cup of tea cools from $65.5 ° C$ to $62.5 ° C$ in $1$ minute in a room at $22.5 ° C$ . How long will it take to cool from $46.5 ° C$ to $40.5 ° C$ in the same room?

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Important Questions on Heat Transfer

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KCET (UG)

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 14 - Heat Transfer>KCET (UG) 2020>Q 1

A sphere, a cube and a thin circular plate all of same material and same mass initially heated to same high temperature are allowed to cool down under similar conditions. Then the

HARD

KCET (UG)

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 14 - Heat Transfer>KCET (UG) 2018>Q 2

A cup of tea cools from

65.5 ° C

to

62.5 ° C

in

1

minute in a room at

22.5 ° C

. How long will it take to cool from

46.5 ° C

to

40.5 ° C

in the same room?