Draw Stress versus Strain diagram with necessary notation and discuss it.
What is reverberation and reverberation time? Write Sabin’s formula for reverberation time and explain each term.
State any four points of differences between spontaneous emission and stimulated emission.
What is torsional pendulum? Derive expression of time period for vibration of torsional pendulum.
Calculate the length of iron rod which can be used to produce ultrasonic waves of 75 kHz. Given that the density of iron is 7230 kg/m3 and its Young’s modulus is 6 × 109 N/m2.
What is called Acoustic Grating? Discuss the method to determine velocity of ultrasonic waves with the help of acoustic grating.
Write any four points of differences between Destructive test and Non-destructive test.
Write any four factors affecting acoustic of building and their remedies.
Write full for of LASER and discuss in brief characteristics of laser light.
The volume of a room is 1500 m3. The wall area of the room is 240 m2, the floor area is 125 m2, and the ceiling area is 125 m2. The average sound absorption coefficient (i) for wall is 0.025; (ii) for the ceiling is 0.85; and (iii) the floor is 0.09. Calculate the average sound absorption coefficient and reverberation time.
For a superconducting material isotopic mass is 195 amu and critical temperature is 4.5 K. Calculate isotopic mass at 5.7 K.
Write any four points of comparison of type-I and type-II superconductor.
What is superconductivity? Discuss any six properties of superconductor.
The critical current passing through a superconducting wire of radius 5 mm is 21 A. Calculate critical magnetic field.
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Official Gujarat Technological University (GTU) examination paper and step-by-step solutions for Physics (Summer 2024, B.E. · Common Engineering, Sem 1). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
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