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Friday, 9 October

JEE Main 2017 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 2 April 2017 (offline), Physics Q8

Question 8 of 90 in this shift, Physics question 8 of 30.

A copper ball of mass 100 gm is at a temperature T. It is dropped in a copper calorimeter of mass 100 gm, filled with 170 gm of water at room temperature. Subsequently, the temperature of the system is found to be 75°C. T is given by : (Given : room temperature = 30°C, specific heat of copper = 0.1 cal/gm°C)
  1. (1)800°C
  2. (2)885°COfficial answer
  3. (3)1250°C
  4. (4)825°C

Official answer

Option 2

CBSE answer key (25/04/2017, used for result).

Chapter
Thermal Properties of Matter
Topic
Calorimetry
Idea tested
Water Equivalent

Same topic in other shifts

All Calorimetry questions
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  4. 30 Jan 2024, Shift 2 · Q37A block of ice at −10∘C-10^\circ C is slowly heated and converted to steam at 100∘C100^\circ C. Which of the following curves represent the…EasyDiagram basedHas a figure
  5. 25 Jul 2021, Shift 1 · Q14Two different metal bodies A and B of equal mass are heated at a uniform rate under similar conditions. The variation of temperature of…MediumSingle correctHas a figure

Question text from the official JEE Main paper published by NTA (CBSE ran the 2017 exam); answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.