Thermal Properties of Matter

AIPMT 2001MCQEasy📈 Topic in 38% papers+4−1

Ques. 1AIPMT 2001

A cylindrical rod has temperatures T1 and T2 at its ends. The rate of flow of heat is Q1 cal/s. If all the linear dimensions are doubled keeping the temperatures constant, then the rate of flow of heat Q2 will be

Answer

(2) 2Q1

Solution

Rate of heat flow: Q = KA(T1 - T2)L, with A = r2

Doubling the linear dimensions: r 2r A 4A; L 2L

Q2Q1 = 4A/2LA/L = 2

Q2 = 2Q1

Answer: (2)

Keep practising — Thermal Properties of Matter

Ques. 2AIPMT 2000

Gravitational force is required for

stirring of liquid
convection
conduction
radiation

Ques. 3AIPMT 2000

A black body emits maximum energy at wavelength m at 2000 K. Its corresponding wavelength at 3000 K will be

32 m
23 m
1681 m
8116 m

All Thermal Properties of Matter PYQs →

PDFDownload Thermal Properties of Matter PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇

All NEET Physics chapters

Class 11Units and Measurements Motion in a Straight Line Motion in a Plane Laws of Motion Work, Energy and Power System of Particles and Rotational Motion Gravitation Mechanical Properties of Solids Mechanical Properties of Fluids Thermal Properties of Matter Thermodynamics (Physics)Kinetic Theory Oscillations Waves

Class 12Electric Charges and Fields Electrostatic Potential and Capacitance Current Electricity Moving Charges and Magnetism Magnetism and Matter Electromagnetic Induction Alternating Current Electromagnetic Waves Ray Optics and Optical Instruments Wave Optics Dual Nature of Radiation and Matter Atoms Nuclei Semiconductor Electronics Experimental Skills (Physics)