⚡Chapter Practice
Heat Transfer — JEE Practice
30 practice questions across 2 topics. Filter by difficulty, solve topic-wise MCQs, and review detailed solutions.
2 Topics30 Questions
Calorimetry & Thermal Expansion(15 Qs)
easy (5)
medium (5)
Q1100 g of water at 80°C is mixed with 200 g at 20°C. The equilibrium temperature is:Q2A bimetallic strip bends when heated because:Q3A pendulum clock gains time in winter because:Q4The density of a liquid at temperature T compared to T₀ is:Q5Steam at 100°C causes more severe burns than water at 100°C because:
hard (5)
Q1A steel tape measures correctly at 20°C (α = 12×10⁻⁶/°C). At 40°C, it reads 100 m for a distance. The true distance is:Q210 g of ice at -10°C is mixed with 10 g of water at 50°C. (c_ice = 0.5 cal/g°C, L_f = 80 cal/g). The final temperature is:Q3A hollow sphere with outer radius R₂ and inner radius R₁ has steady state heat conduction. The temperature distribution is proportional to:Q4Anomalous expansion of water occurs between:Q5A solid at temperature T is heated. The increment in moment of inertia is approximately:
Conduction, Convection & Radiation(15 Qs)
easy (5)
medium (5)
Q1Two rods of same dimensions but thermal conductivities K₁ and K₂ are connected in series. The equivalent conductivity is:Q2Newton's law of cooling states that rate of cooling is proportional to:Q3The surface temperature of the Sun is about 6000K. The peak emission wavelength is approximately:Q4A body at temperature T₁ in surroundings at T₂ radiates net power:Q5If the temperature of a body is doubled, the radiated energy becomes:
hard (5)
Q1A composite wall has two layers of equal thickness but conductivities K and 2K. The temperature at the interface, if outer faces are at T₁ and T₂:Q2A sphere of radius R at initial temperature T₁ cools by radiation in vacuum (surroundings at T₂). The initial rate of temperature change is:Q3The temperature of a body decreases from 70°C to 60°C in 5 min, surroundings at 30°C. The time to cool from 60°C to 50°C is:Q4A cylindrical rod with one end at T₁ and other insulated loses heat from its lateral surface. The temperature distribution satisfies:Q5Two bodies (equal mass, specific heats c₁ and c₂) at T₁ and T₂ exchange heat. The entropy change of the universe:
More Physics Chapters
Need Help with Heat Transfer?
Get 1-on-1 doubt sessions and personalised practice analysis with MindPeak's JEE mentors.