Free physics question bank
heat and principle of calorimeter questions with solutions
Practice Thermodynamics for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.
Showing 1–10 of 16 questions
- MCQmediumThermodynamics
In a perfectly inelastic collision, two spheres made of the same material with masses 15 kg and 25 kg, moving in opposite directions with speeds of 10 m/s and 30 m/s, respectively, strike each other and stick together. The rise in temperature (in °C), if all the heat produced during the collision is retained by these spheres, is :
(specific heat of sphere material 31 cal/kg. °C and 1 cal = 4.2 J)
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JEE Mains 202623 January Morning Shift
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A block of ice at –10°C is slowly heated and converted to steam at 100°C. Which of the following curves represent the phenomenon qualitatively:
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JEE Mains 2024 30 Jan Evening Shift
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Which relation correctly represents Celsius temperature C and Fahrenheit temperature F?
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JEE Mains 2025 24 Jan Evening Shift
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On celcius scale the temperature of body increases by 40°C. The increase in temperature on Fahrenheit scale is:
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JEE Mains 2024 04 Apr Morning Shift
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A water heater of power 2000 W is used to heat 2 kg of water from 10°C to 60°C. Specific heat capacity of water is 4200 J kg⁻¹ K⁻¹ and efficiency of heater is 70%. Time required is ______ s.
JEE Mains31 January 2023Shift 2Evening Shift
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10 kg of ice at -10°C is added to 100 kg of water to lower its temperature from 25°C. Consider no heat exchange to surroundings. The decrement to the temperature of water is ________ °C.
(specific heat of ice = 2100 J/kg·°C, specific heat of water = 4200 J/kg·°C, latent heat of fusion of ice = 3.36 × 10⁵ J/kg)
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JEE Mains 202628 January Morning Shift
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Ice at -10°C is converted completely into steam at 110°C. The mass of ice is 10⁻³ kg. Using the standard heat capacities and latent heats used in the question, the heat required is:
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JEE Main 2025 (Online) 22 jan morning Shift
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The graph between two temperature scales P and Q is shown in the figure. Between upper fixed point and lower fixed point there are 150 equal divisions of scale P and 100 divisions on scale Q. The relationship for conversion between the two scales is given by :
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JEE Mains25 January 2023Shift 2Evening Shift
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The heat extracted from x grams of water initially at 50°C to cool it to 0°C is exactly sufficient to convert (1000-x) grams of water, also initially at 50°C, completely into steam at 100°C. Take the specific heat capacity of water as 4200 J·kg⁻¹·K⁻¹ and the latent heat of vaporisation as 2256 kJ·kg⁻¹. Find x to the nearest integer in grams.
JEE Mains 2026 5 April Evening Shift
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Water falls from a height of 200 m into a pool. Assuming no heat is lost, find the rise in temperature of the water. Take g = 10 m s⁻² and specific heat of water s = 4200 J kg⁻¹ K⁻¹.
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JEE Mains 2025 8 April Evening Shift (Shift 2)
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